The OSS code for the Sound Blaster (sb16) driver in Linux 2.4.x before 2.4.26, when operating in 16 bit mode, does not properly handle certain sample sizes, which allows local users to cause a denial of service (crash) via a sample with an odd number of bytes.

Several serious problems have been discovered in the Linux kernel.
This update takes care of Linux 2.4.16 for the ARM architecture. The Common Vulnerabilities and Exposures project identifies the following problems that will be fixed with this update :

  - CAN-2003-0127     The kernel module loader allows local users to gain root     privileges by using ptrace to attach to a child process     that is spawned by the kernel.

  - CAN-2004-0003

    A vulnerability has been discovered in the R128 DRI     driver in the Linux kernel which could potentially lead     an attacker to gain unauthorised privileges. Alan Cox     and Thomas Biege developed a correction for this.

  - CAN-2004-0010

    Arjan van de Ven discovered a stack-based buffer     overflow in the ncp_lookup function for ncpfs in the     Linux kernel, which could lead an attacker to gain     unauthorised privileges. Petr Vandrovec developed a     correction for this.

  - CAN-2004-0109

    zen-parse discovered a buffer overflow vulnerability in     the ISO9660 filesystem component of Linux kernel which     could be abused by an attacker to gain unauthorised root     access. Sebastian Krahmer and Ernie Petrides developed a     correction for this.

  - CAN-2004-0177

    Solar Designer discovered an information leak in the     ext3 code of Linux. In a worst case a local attacker     could obtain sensitive information (such as     cryptographic keys in another worst case) which would     otherwise never hit disk media. Theodore Ts'o developed     a correction for this.

  - CAN-2004-0178

    Andreas Kies discovered a denial of service condition in     the Sound Blaster driver in Linux. He also developed a     correction for this.

These problems are also fixed by upstream in Linux 2.4.26 and will be fixed in Linux 2.6.6.

The following security matrix explains which kernel versions for which architectures are already fixed and which will be removed instead.

  Architecture    stable (woody)  unstable (sid)    source          2.4.16-1woody2  2.4.25-3          arm/patch       20040419        20040316          arm/lart        20040419        2.4.25-4          arm/netwinder   20040419        2.4.25-4          arm/riscpc      20040419        2.4.25-4

Several serious problems have been discovered in the Linux kernel.
This update takes care of Linux 2.4.19 for the MIPS architecture. The Common Vulnerabilities and Exposures project identifies the following problems that will be fixed with this update :

  - CAN-2004-0003     A vulnerability has been discovered in the R128 DRI     driver in the Linux kernel which could potentially lead     an attacker to gain unauthorised privileges. Alan Cox     and Thomas Biege developed a correction for this.

  - CAN-2004-0010

    Arjan van de Ven discovered a stack-based buffer     overflow in the ncp_lookup function for ncpfs in the     Linux kernel, which could lead an attacker to gain     unauthorised privileges. Petr Vandrovec developed a     correction for this.

  - CAN-2004-0109

    zen-parse discovered a buffer overflow vulnerability in     the ISO9660 filesystem component of Linux kernel which     could be abused by an attacker to gain unauthorised root     access. Sebastian Krahmer and Ernie Petrides developed a     correction for this.

  - CAN-2004-0177

    Solar Designer discovered an information leak in the     ext3 code of Linux. In a worst case an attacker could     read sensitive data such as cryptographic keys which     would otherwise never hit disk media. Theodore Ts'o     developed a correction for this.

  - CAN-2004-0178

    Andreas Kies discovered a denial of service condition in     the Sound Blaster driver in Linux. He also developed a     correction for this.

These problems are also fixed by upstream in Linux 2.4.26 and will be fixed in Linux 2.6.6.

The following security matrix explains which kernel versions for which architectures are already fixed and which will be removed instead.

  Architecture              stable (woody)            unstable (sid)            removed in sid              source                    2.4.19-4.woody2           2.4.25-3                  2.4.19-11                   mips                      2.4.19-0.020911.1.woody4  2.4.25-0.040415.1         2.4.19-0.020911.8

Several serious problems have been discovered in the Linux kernel.
This update takes care of Linux 2.4.17 for the MIPS and MIPSel architectures. The Common Vulnerabilities and Exposures project identifies the following problems that will be fixed with this update :

  - CAN-2004-0003     A vulnerability has been discovered in the R128 DRI     driver in the Linux kernel which could potentially lead     an attacker to gain unauthorised privileges. Alan Cox     and Thomas Biege developed a correction for this.

  - CAN-2004-0010

    Arjan van de Ven discovered a stack-based buffer     overflow in the ncp_lookup function for ncpfs in the     Linux kernel, which could lead an attacker to gain     unauthorised privileges. Petr Vandrovec developed a     correction for this.

  - CAN-2004-0109

    zen-parse discovered a buffer overflow vulnerability in     the ISO9660 filesystem component of Linux kernel which     could be abused by an attacker to gain unauthorised root     access. Sebastian Krahmer and Ernie Petrides developed a     correction for this.

  - CAN-2004-0177

    Solar Designer discovered an information leak in the     ext3 code of Linux. In a worst case an attacker could     read sensitive data such as cryptographic keys which     would otherwise never hit disk media. Theodore Ts'o     developed a correction for this.

  - CAN-2004-0178

    Andreas Kies discovered a denial of service condition in     the Sound Blaster driver in Linux. He also developed a     correction for this.

These problems are also fixed by upstream in Linux 2.4.26 and will be fixed in Linux 2.6.6.

The following security matrix explains which kernel versions for which architectures are already fixed and which will be removed instead.

  Architecture              stable (woody)            unstable (sid)            removed in sid              source                    2.4.17-1woody3            2.4.25-3                  2.4.19-11                   mips                      2.4.17-0.020226.2.woody6  2.4.25-0.040415.1         2.4.19-0.020911.8           mipsel                    2.4.17-0.020226.2.woody6  2.4.25-0.040415.1         2.4.19-0.020911.9

Several serious problems have been discovered in the Linux kernel.
This update takes care of Linux 2.4.17 for the PowerPC/apus and S/390 architectures. The Common Vulnerabilities and Exposures project identifies the following problems that will be fixed with this update :

  - CAN-2004-0003     A vulnerability has been discovered in the R128 DRI     driver in the Linux kernel which could potentially lead     an attacker to gain unauthorised privileges. Alan Cox     and Thomas Biege developed a correction for this.

  - CAN-2004-0010

    Arjan van de Ven discovered a stack-based buffer     overflow in the ncp_lookup function for ncpfs in the     Linux kernel, which could lead an attacker to gain     unauthorised privileges. Petr Vandrovec developed a     correction for this.

  - CAN-2004-0109

    zen-parse discovered a buffer overflow vulnerability in     the ISO9660 filesystem component of Linux kernel which     could be abused by an attacker to gain unauthorised root     access. Sebastian Krahmer and Ernie Petrides developed a     correction for this.

  - CAN-2004-0177

    Solar Designer discovered an information leak in the     ext3 code of Linux. In a worst case an attacker could     read sensitive data such as cryptographic keys which     would otherwise never hit disk media. Theodore Ts'o     developed a correction for this.

  - CAN-2004-0178

    Andreas Kies discovered a denial of service condition in     the Sound Blaster driver in Linux. He also developed a     correction for this.

These problems are also fixed by upstream in Linux 2.4.26 and will be fixed in Linux 2.6.6.

The following security matrix explains which kernel versions for which architectures are already fixed.

  Architecture                      stable (woody)                    unstable (sid)                      source                            2.4.17-1woody3                    2.4.25-3                            powerpc/apus                      2.4.17-5                          2.4.25-2                            s390                              2.4.17-2.woody.4                  2.4.25-2 (and probably 2.4.21-3)

Several serious problems have been discovered in the Linux kernel.
This update takes care of Linux 2.4.17 for the IA-64 architecture. The Common Vulnerabilities and Exposures project identifies the following problems that will be fixed with this update :

  - CAN-2004-0003     A vulnerability has been discovered in the R128 DRI     driver in the Linux kernel which could potentially lead     an attacker to gain unauthorised privileges. Alan Cox     and Thomas Biege developed a correction for this.

  - CAN-2004-0010

    Arjan van de Ven discovered a stack-based buffer     overflow in the ncp_lookup function for ncpfs in the     Linux kernel, which could lead an attacker to gain     unauthorised privileges. Petr Vandrovec developed a     correction for this.

  - CAN-2004-0109

    zen-parse discovered a buffer overflow vulnerability in     the ISO9660 filesystem component of Linux kernel which     could be abused by an attacker to gain unauthorised root     access. Sebastian Krahmer and Ernie Petrides developed a     correction for this.

  - CAN-2004-0177

    Solar Designer discovered an information leak in the     ext3 code of Linux. In a worst case an attacker could     read sensitive data such as cryptographic keys which     would otherwise never hit disk media. Theodore Ts'o     developed a correction for this.

  - CAN-2004-0178

    Andreas Kies discovered a denial of service condition in     the Sound Blaster driver in Linux. He also developed a     correction for this.

These problems are also fixed by upstream in Linux 2.4.26 and will be fixed in Linux 2.6.6.

Several serious problems have been discovered in the Linux kernel.
This update takes care of Linux 2.4.17 and 2.4.18 for the hppa (PA-RISC) architecture. The Common Vulnerabilities and Exposures project identifies the following problems that will be fixed with this update :

  - CAN-2004-0003     A vulnerability has been discovered in the R128 DRI     driver in the Linux kernel which could potentially lead     an attacker to gain unauthorised privileges. Alan Cox     and Thomas Biege developed a correction for this.

  - CAN-2004-0010

    Arjan van de Ven discovered a stack-based buffer     overflow in the ncp_lookup function for ncpfs in the     Linux kernel, which could lead an attacker to gain     unauthorised privileges. Petr Vandrovec developed a     correction for this.

  - CAN-2004-0109

    zen-parse discovered a buffer overflow vulnerability in     the ISO9660 filesystem component of Linux kernel which     could be abused by an attacker to gain unauthorised root     access. Sebastian Krahmer and Ernie Petrides developed a     correction for this.

  - CAN-2004-0177

    Solar Designer discovered an information leak in the     ext3 code of Linux. In a worst case an attacker could     read sensitive data such as cryptographic keys which     would otherwise never hit disk media. Theodore Ts'o     developed a correction for this.

  - CAN-2004-0178

    Andreas Kies discovered a denial of service condition in     the Sound Blaster driver in Linux. He also developed a     correction for this.

These problems are also fixed by upstream in Linux 2.4.26 and will be fixed in Linux 2.6.6.

Several serious problems have been discovered in the Linux kernel.
This update takes care of Linux 2.4.18 for the alpha, i386 and powerpc architectures. The Common Vulnerabilities and Exposures project identifies the following problems that will be fixed with this update :

  - CAN-2004-0003     A vulnerability has been discovered in the R128 DRI     driver in the Linux kernel which could potentially lead     an attacker to gain unauthorised privileges. Alan Cox     and Thomas Biege developed a correction for this.

  - CAN-2004-0010

    Arjan van de Ven discovered a stack-based buffer     overflow in the ncp_lookup function for ncpfs in the     Linux kernel, which could lead an attacker to gain     unauthorised privileges. Petr Vandrovec developed a     correction for this.

  - CAN-2004-0109

    zen-parse discovered a buffer overflow vulnerability in     the ISO9660 filesystem component of Linux kernel which     could be abused by an attacker to gain unauthorised root     access. Sebastian Krahmer and Ernie Petrides developed a     correction for this.

  - CAN-2004-0177

    Solar Designer discovered an information leak in the     ext3 code of Linux. In a worst case an attacker could     read sensitive data such as cryptographic keys which     would otherwise never hit disk media. Theodore Ts'o     developed a correction for this.

  - CAN-2004-0178

    Andreas Kies discovered a denial of service condition in     the Sound Blaster driver in Linux. He also developed a     correction for this.

These problems are also fixed by upstream in Linux 2.4.26 and will be fixed in Linux 2.6.6.

The following security matrix explains which kernel versions for which architectures are already fixed. Kernel images in the unstable Debian distribution (sid) will be fixed soon.

  Architecture    stable (woody)  unstable (sid)  removed in sid    source          2.4.18-14.3     2.4.25-3        --               alpha           2.4.18-15       soon            --               i386            2.4.18-13       soon            --               i386bf          2.4.18-5woody8  soon            --               powerpc         2.4.18-1woody5  2.4.25-8        2.4.22

The remote host is affected by the vulnerability described in GLSA-200407-02 (Linux Kernel: Multiple vulnerabilities)

    Multiple flaws have been discovered in the Linux kernel. This advisory     corrects the following issues:
    CAN-2004-0109: This vulnerability allows privilege escalation using     ISO9660 file systems through a buffer overflow via a malformed file     system containing a long symbolic link entry. This can allow arbitrary     code execution at kernel level.
    CAN-2004-0133: The XFS file system in 2.4 series kernels has an     information leak by which data in the memory can be written to the     device hosting the file system, allowing users to obtain portions of     kernel memory by reading the raw block device.
    CAN-2004-0177: The ext3 file system in 2.4 series kernels does not     properly initialize journal descriptor blocks, causing an information     leak by which data in the memory can be written to the device hosting     the file system, allowing users to obtain portions of kernel memory by     reading the raw device.
    CAN-2004-0181: The JFS file system in 2.4 series kernels has an     information leak by which data in the memory can be written to the     device hosting the file system, allowing users to obtain portions of     kernel memory by reading the raw device.
    CAN-2004-0178: The OSS Sound Blaster [R] Driver has a Denial of Service     vulnerability since it does not handle certain sample sizes properly.
    This allows local users to hang the kernel.
    CAN-2004-0228: Due to an integer signedness error in the CPUFreq /proc     handler code in 2.6 series Linux kernels, local users can escalate     their privileges.
    CAN-2004-0229: The framebuffer driver in 2.6 series kernel drivers does     not use the fb_copy_cmap method of copying structures. The impact of     this issue is unknown, however.
    CAN-2004-0394: A buffer overflow in the panic() function of 2.4 series     Linux kernels exists, but it may not be exploitable under normal     circumstances due to its functionality.
    CAN-2004-0427: The do_fork() function in both 2.4 and 2.6 series Linux     kernels does not properly decrement the mm_count counter when an error     occurs, triggering a memory leak that allows local users to cause a     Denial of Service by exhausting other applications of memory; causing     the kernel to panic or to kill services.
    CAN-2004-0495: Multiple vulnerabilities found by the Sparse source     checker in the kernel allow local users to escalate their privileges or     gain access to kernel memory.
    CAN-2004-0535: The e1000 NIC driver does not properly initialize memory     structures before using them, allowing users to read kernel memory.
    CAN-2004-0554: 2.4 and 2.6 series kernels running on an x86 or an AMD64     architecture allow local users to cause a Denial of Service by a total     system hang, due to an infinite loop that triggers a signal handler     with a certain sequence of fsave and frstor instructions.
    Local DoS in PaX: If ASLR is enabled as a GRSecurity PaX feature, a     Denial of Service can be achieved by putting the kernel into an     infinite loop. Only 2.6 series GRSecurity kernels are affected by this     issue.
    RSBAC 1.2.3 JAIL issues: A flaw in the RSBAC JAIL implementation allows     suid/sgid files to be created inside the jail since the relevant module     does not check the corresponding mode values. This can allow privilege     escalation inside the jail. Only rsbac-(dev-)sources are affected by     this issue.
  Impact :

    Arbitrary code with normal non-super-user privileges may be able to     exploit any of these vulnerabilities; gaining kernel level access to     memory structures and hardware devices. This may be used for further     exploitation of the system, to leak sensitive data or to cause a Denial     of Service on the affected kernel.
  Workaround :

    Although users may not be affected by certain vulnerabilities, all     kernels are affected by the CAN-2004-0394, CAN-2004-0427 and     CAN-2004-0554 issues which have no workaround. As a result, all users     are urged to upgrade their kernels to patched versions.

Updated kernel packages are now available as part of ongoing support and maintenance of Red Hat Enterprise Linux version 2.1. This is the fifth regular update.

The Linux kernel handles the basic functions of the operating system.

This is the fifth regular kernel update to Red Hat Enterprise Linux version 2.1. It contains one minor security fix, many bug fixes, and updates a number of device drivers.

A bug in the SoundBlaster 16 code which did not properly handle certain sample sizes has been fixed. This flaw could be used by local users to crash a system. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-0178 to this issue.

The following drivers have also been updated :

* cciss v2.4.52 * e1000 v5252k1 * e100 v2.3.43-k1 * fusion v2.05.16 * ips v7.00.15 * aacraid v1.1.5 * megaraid2 v2.10.6

All Red Hat Enterprise Linux 2.1 users are advised to upgrade their kernels to the packages associated with their machine architectures and configurations as listed in this erratum.

Updated kernel packages that fix several security issues in Red Hat Enterprise Linux 3 are now available.

The Linux kernel handles the basic functions of the operating system.

Paul Starzetz discovered flaws in the Linux kernel when handling file offset pointers. These consist of invalid conversions of 64 to 32-bit file offset pointers and possible race conditions. A local unprivileged user could make use of these flaws to access large portions of kernel memory. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-0415 to this issue.

These packages contain a patch written by Al Viro to correct these flaws. Red Hat would like to thank iSEC Security Research for disclosing this issue and a number of vendor-sec participants for reviewing and working on the patch to this issue.

In addition, these packages correct a number of minor security issues :

An bug in the e1000 network driver. This bug could be used by local users to leak small amounts of kernel memory (CVE-2004-0535).

A bug in the SoundBlaster 16 code which does not properly handle certain sample sizes. This flaw could be used by local users to crash a system (CVE-2004-0178).

A possible NULL pointer dereference in the Linux kernel prior to 2.4.26 on the Itanium platform could allow a local user to crash a system (CVE-2004-0447).

Inappropriate permissions on /proc/scsi/qla2300/HbaApiNode (CVE-2004-0587).

All Red Hat Enterprise Linux 3 users are advised to upgrade their kernels to the packages associated with their machine architectures and configurations as listed in this erratum.

A vulnerability was found in the R128 DRI driver by Alan Cox. This could allow local privilege escalation. The previous fix, in MDKSA-2004:015 only partially corrected the problem; the full fix is included (CVE-2004-0003).

A local root vulnerability was discovered in the isofs component of the Linux kernel by iDefense. This vulnerability can be triggered by performing a directory listing on a maliciously constructed ISO filesystem, or attempting to access a file via a malformed symlink on such a filesystem (CVE-2004-0109).

An information leak was discovered in the ext3 filesystem code by Solar Designer. It was discovered that when creating or writing to an ext3 filesystem, some amount of other in-memory data gets written to the device. The data is not the file's contents, not something on the same filesystem, or even anything that was previously in a file at all. To obtain this data, a user needs to read the raw device (CVE-2004-0177).

The same vulnerability was also found in the XFS filesystem code (CVE-2004-0133) and the JFS filesystem code (CVE-2004-0181).

Finally, a vulnerability in the OSS code for SoundBlaster 16 devices was discovered by Andreas Kies. It is possible for local users with access to the sound system to crash the machine (CVE-2004-0178).

The provided packages are patched to fix these vulnerabilities. All users are encouraged to upgrade to these updated kernels.

To update your kernel, please follow the directions located at :

http://www.mandrakesecure.net/en/kernelupdate.php

A memory leak was fixed in an error path in the do_fork() routine.
This was unlikely to have caused problems in real world situations.

The information leak fixed in the previous errata was also found to affect XFS and JFS. The Common Vulnerabilities and Exposures project (cve.mitre.org) assigned the names CVE-2004-0133 and CVE-2004-0181 respectively.

A vulnerability in the OSS code for SoundBlaster 16 devices was discovered by Andreas Kies. It is possible for local users with access to the sound system to crash the machine (CVE-2004-0178).

An automated checked from http://www.coverity.com highlighted a range checking bug in the i810 DRM driver. This was fixed by Andrea Arcangeli and Chris Wright.

Arjan van de Ven discovered the framebuffer code was doing direct userspace accesses instead of using correct interfaces to write to userspace.

Brad Spengler found a signedness issue in the cpufreq proc handler which could lead to users being able to read arbitary regions of kernel memory. This was fixed by Dominik Brodowski.

Shaun Colley found a potential buffer overrun in the panic() function.
As this function does not ever return, it is unlikely that this is exploitable, but has been fixed nonetheless. The Common Vulnerabilities and Exposures project (cve.mitre.org) assigned the name CVE-2004-0394 to this issue.

Paul Starzetz and Wojciech Purczynski found a lack of bounds checking in the MCAST_MSFILTER socket option which allows user code to write into kernel space, potentially giving the attacker full root priveledges. There has already been proof of concept code published exploiting this hole in a local denial-of-service manner.
http://www.isec.pl/vulnerabilities/isec-0015-msfilter.txt has more information. The Common Vulnerabilities and Exposures project (cve.mitre.org) assigned the name CVE-2004-0424 to this issue.

The previous security errata actually missed fixes for several important problems. This has been corrected in this update.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
15332	Debian DSA-495-1 : linux-kernel-2.4.16-arm - several vulnerabilities	Nessus	Debian Local Security Checks	high
15328	Debian DSA-491-1 : linux-kernel-2.4.19-mips - several vulnerabilities	Nessus	Debian Local Security Checks	high
15326	Debian DSA-489-1 : linux-kernel-2.4.17-mips+mipsel - several vulnerabilities	Nessus	Debian Local Security Checks	high
15319	Debian DSA-482-1 : linux-kernel-2.4.17-apus+s390 - several vulnerabilities	Nessus	Debian Local Security Checks	high
15318	Debian DSA-481-1 : linux-kernel-2.4.17-ia64 - several vulnerabilities	Nessus	Debian Local Security Checks	high
15317	Debian DSA-480-1 : linux-kernel-2.4.17+2.4.18-hppa - several vulnerabilities	Nessus	Debian Local Security Checks	high
15316	Debian DSA-479-1 : linux-kernel-2.4.18-alpha+i386+powerpc - several vulnerabilities	Nessus	Debian Local Security Checks	high
14535	GLSA-200407-02 : Linux Kernel: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	high
14309	RHEL 2.1 : kernel (RHSA-2004:437)	Nessus	Red Hat Local Security Checks	low
14239	RHEL 3 : kernel (RHSA-2004:413)	Nessus	Red Hat Local Security Checks	high
14128	Mandrake Linux Security Advisory : kernel (MDKSA-2004:029)	Nessus	Mandriva Local Security Checks	medium
13692	Fedora Core 1 : kernel-2.4.22-1.2188.nptl (2004-111)	Nessus	Fedora Local Security Checks	high

Detections

Analytics

CVE-2004-0178

medium

Tenable Plugins

high

high

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high

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medium

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