SuSE9 Security Update : Linux kernel (YOU Patch Number 12636)

critical Nessus Plugin ID 48901


New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


The remote SuSE 9 host is missing a security-related patch.


This update fixes various security issues and some bugs in the SUSE Linux Enterprise 9 kernel.

The following security issues were fixed :

- A crafted NFS write request might have caused a buffer overwrite, potentially causing a kernel crash.

- The x86_64 copy_to_user implementation might have leaked kernel memory depending on specific user buffer setups.

- drivers/net/r8169.c in the r8169 driver in the Linux kernel did not properly check the size of an Ethernet frame that exceeds the MTU, which allows remote attackers to (1) cause a denial of service (temporary network outage) via a packet with a crafted size, in conjunction with certain packets containing A characters and certain packets containing E characters; or (2) cause a denial of service (system crash) via a packet with a crafted size, in conjunction with certain packets containing '\0' characters, related to the value of the status register and erroneous behavior associated with the RxMaxSize register. NOTE: this vulnerability exists because of an incorrect fix for CVE-2009-1389.

- Use-after-free vulnerability in net/ipv4/tcp_input.c in the Linux kernel 2.6 when IPV6_RECVPKTINFO is set on a listening socket, allowed remote attackers to cause a denial of service (kernel panic) via a SYN packet while the socket is in a listening (TCP_LISTEN) state, which is not properly handled causes the skb structure to be freed. (CVE-2010-1188)

- The (1) real_lookup and (2) __lookup_hash functions in fs/namei.c in the vfs implementation in the Linux kernel did not prevent creation of a child dentry for a deleted (aka S_DEAD) directory, which allowed local users to cause a denial of service ('overflow' of the UBIFS orphan area) via a series of attempted file creations within deleted directories. (CVE-2008-3275)

- The nfs_lock function in fs/nfs/file.c in the Linux kernel did not properly remove POSIX locks on files that are setgid without group-execute permission, which allows local users to cause a denial of service (BUG and system crash) by locking a file on an NFS filesystem and then changing this files permissions, a related issue to CVE-2010-0727. (CVE-2007-6733)

- The do_coredump function in fs/exec.c in Linux kernel did not change the UID of a core dump file if it exists before a root process creates a core dump in the same location, which might have allowed local users to obtain sensitive information. (CVE-2007-6206)

- fs/namei.c in the Linux kernel did not always follow NFS automount 'symlinks,' which allowed attackers to have an unknown impact, related to LOOKUP_FOLLOW.

- Stack-based buffer overflow in the hfs subsystem in the Linux kernel allowed remote attackers to have an unspecified impact via a crafted Hierarchical File System (HFS) filesystem, related to the hfs_readdir function in fs/hfs/dir.c. (CVE-2009-4020)

- The processcompl_compat function in drivers/usb/core/devio.c in Linux kernel did not clear the transfer buffer before returning to userspace when a USB command fails, which might have made it easier for physically proximate attackers to obtain sensitive information (kernel memory). (CVE-2010-1083)


Apply YOU patch number 12636.

See Also

Plugin Details

Severity: Critical

ID: 48901

File Name: suse9_12636.nasl

Version: 1.13

Type: local

Agent: unix

Published: 8/27/2010

Updated: 1/14/2021

Dependencies: ssh_get_info.nasl

Risk Information


Risk Factor: Medium

Score: 5.9


Risk Factor: Critical

Base Score: 10

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Vulnerability Information

CPE: cpe:/o:suse:suse_linux

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Patch Publication Date: 8/17/2010

Reference Information

CVE: CVE-2007-6206, CVE-2007-6733, CVE-2008-0598, CVE-2008-3275, CVE-2009-1389, CVE-2009-4020, CVE-2009-4537, CVE-2010-0727, CVE-2010-1083, CVE-2010-1088, CVE-2010-1188, CVE-2010-2521

CWE: 16, 20, 119, 200, 399