http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6094628bfd94323fc1cea05ec2c6affd98c18f7f

[oss-security] 20110303 CVE-2011-1023 kernel: rds: prevent BUG_ON triggering on congestion map updates

https://bugzilla.redhat.com/show_bug.cgi?id=680345

https://github.com/torvalds/linux/commit/6094628bfd94323fc1cea05ec2c6affd98c18f7f

Description of changes:

[2.6.32-100.28.17.el6]
- [net] Extend prot->slab size when add sock extend fields.

[2.6.32-100.28.16.el6]
- kernel: Fix unlimited socket backlog DoS {CVE-2010-4251}
- RDS: Fix congestion issues for loopback
- rds: prevent BUG_ON triggering on congestion map updates {CVE-2011-1023}
- epoll: prevent creating circular epoll structures {CVE-2011-1082}
- fs: fix corrupted OSF partition table parsing {CVE-2011-1163}
- fs: Increase OSF partition limit from 8 to 18 {CVE-2011-1163}
- netfilter: arp_tables: fix infoleak to userspace {CVE-2011-1170}
- netfilter: ip_tables: fix infoleak to userspace {CVE-2011-1171}
- ipv6: netfilter: ip6_tables: fix infoleak to userspace {CVE-2011-1172}
- [SCSI] mpt2sas: prevent heap overflows and unchecked reads {CVE-2011-1494, CVE-2011-1495}

The kernel packages contain the Linux kernel, the core of any Linux operating system.

This update fixes the following security issues :

  - Multiple buffer overflow flaws were found in the Linux     kernel's Management Module Support for Message Passing     Technology (MPT) based controllers. A local,     unprivileged user could use these flaws to cause a     denial of service, an information leak, or escalate     their privileges. (CVE-2011-1494, CVE-2011-1495,     Important)

  - A flaw was found in the Linux kernel's Ethernet bonding     driver implementation. Packets coming in from network     devices that have more than 16 receive queues to a     bonding interface could cause a denial of service.
    (CVE-2011-1581, Important)

  - A flaw was found in the Linux kernel's networking     subsystem. If the number of packets received exceeded     the receiver's buffer limit, they were queued in a     backlog, consuming memory, instead of being discarded. A     remote attacker could abuse this flaw to cause a denial     of service (out-of-memory condition). (CVE-2010-4251,     Moderate)

  - A flaw was found in the Linux kernel's Transparent Huge     Pages (THP) implementation. A local, unprivileged user     could abuse this flaw to allow the user stack (when it     is using huge pages) to grow and cause a denial of     service. (CVE-2011-0999, Moderate)

  - A flaw was found in the transmit methods (xmit) for the     loopback and InfiniBand transports in the Linux kernel's     Reliable Datagram Sockets (RDS) implementation. A local,     unprivileged user could use this flaw to cause a denial     of service. (CVE-2011-1023, Moderate)

  - A flaw in the Linux kernel's Event Poll (epoll)     implementation could allow a local, unprivileged user to     cause a denial of service. (CVE-2011-1082, Moderate)

  - An inconsistency was found in the interaction between     the Linux kernel's method for allocating NFSv4 (Network     File System version 4) ACL data and the method by which     it was freed. This inconsistency led to a kernel panic     which could be triggered by a local, unprivileged user     with files owned by said user on an NFSv4 share.
    (CVE-2011-1090, Moderate)

  - A missing validation check was found in the Linux     kernel's mac_partition() implementation, used for     supporting file systems created on Mac OS operating     systems. A local attacker could use this flaw to cause a     denial of service by mounting a disk that contains     specially crafted partitions. (CVE-2011-1010, Low)

  - A buffer overflow flaw in the DEC Alpha OSF partition     implementation in the Linux kernel could allow a local     attacker to cause an information leak by mounting a disk     that contains specially crafted partition tables.
    (CVE-2011-1163, Low)

  - Missing validations of null-terminated string data     structure elements in the do_replace(),     compat_do_replace(), do_ipt_get_ctl(),     do_ip6t_get_ctl(), and do_arpt_get_ctl() functions could     allow a local user who has the CAP_NET_ADMIN capability     to cause an information leak. (CVE-2011-1170,     CVE-2011-1171, CVE-2011-1172, Low)

This update also fixes several hundred bugs and adds enhancements.

The system must be rebooted for this update to take effect.

This update fixes the following reports for OFED :

  - 704914: Fixed NFS client over TCP hangs due to packet     loss.

  - 693243: Fixed issue with building lustre against     ofed-devel.

  - 706175: Fix crash on accessing /proc/net/sdpstats

  - 722030: Cannot load ib_ipath

  - 703752: Prevent BUG_ON triggering on congestion

Updated kernel packages that fix multiple security issues, address several hundred bugs and add numerous enhancements are now available as part of the ongoing support and maintenance of Red Hat Enterprise Linux version 6. This is the first regular update.

The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

This update fixes the following security issues :

* Multiple buffer overflow flaws were found in the Linux kernel's Management Module Support for Message Passing Technology (MPT) based controllers. A local, unprivileged user could use these flaws to cause a denial of service, an information leak, or escalate their privileges. (CVE-2011-1494, CVE-2011-1495, Important)

* A flaw was found in the Linux kernel's Ethernet bonding driver implementation. Packets coming in from network devices that have more than 16 receive queues to a bonding interface could cause a denial of service. (CVE-2011-1581, Important)

* A flaw was found in the Linux kernel's networking subsystem. If the number of packets received exceeded the receiver's buffer limit, they were queued in a backlog, consuming memory, instead of being discarded. A remote attacker could abuse this flaw to cause a denial of service (out-of-memory condition). (CVE-2010-4251, Moderate)

* A flaw was found in the Linux kernel's Transparent Huge Pages (THP) implementation. A local, unprivileged user could abuse this flaw to allow the user stack (when it is using huge pages) to grow and cause a denial of service. (CVE-2011-0999, Moderate)

* A flaw was found in the transmit methods (xmit) for the loopback and InfiniBand transports in the Linux kernel's Reliable Datagram Sockets (RDS) implementation. A local, unprivileged user could use this flaw to cause a denial of service. (CVE-2011-1023, Moderate)

* A flaw in the Linux kernel's Event Poll (epoll) implementation could allow a local, unprivileged user to cause a denial of service.
(CVE-2011-1082, Moderate)

* An inconsistency was found in the interaction between the Linux kernel's method for allocating NFSv4 (Network File System version 4) ACL data and the method by which it was freed. This inconsistency led to a kernel panic which could be triggered by a local, unprivileged user with files owned by said user on an NFSv4 share. (CVE-2011-1090, Moderate)

* A missing validation check was found in the Linux kernel's mac_partition() implementation, used for supporting file systems created on Mac OS operating systems. A local attacker could use this flaw to cause a denial of service by mounting a disk that contains specially crafted partitions. (CVE-2011-1010, Low)

* A buffer overflow flaw in the DEC Alpha OSF partition implementation in the Linux kernel could allow a local attacker to cause an information leak by mounting a disk that contains specially crafted partition tables. (CVE-2011-1163, Low)

* Missing validations of null-terminated string data structure elements in the do_replace(), compat_do_replace(), do_ipt_get_ctl(), do_ip6t_get_ctl(), and do_arpt_get_ctl() functions could allow a local user who has the CAP_NET_ADMIN capability to cause an information leak. (CVE-2011-1170, CVE-2011-1171, CVE-2011-1172, Low)

Red Hat would like to thank Dan Rosenberg for reporting CVE-2011-1494 and CVE-2011-1495; Nelson Elhage for reporting CVE-2011-1082; Timo Warns for reporting CVE-2011-1010 and CVE-2011-1163; and Vasiliy Kulikov for reporting CVE-2011-1170, CVE-2011-1171, and CVE-2011-1172.

This update also fixes several hundred bugs and adds enhancements.
Refer to the Red Hat Enterprise Linux 6.1 Release Notes for information on the most significant of these changes, and the Technical Notes for further information, both linked to in the References.

All Red Hat Enterprise Linux 6 users are advised to install these updated packages, which correct these issues, and fix the bugs and add the enhancements noted in the Red Hat Enterprise Linux 6.1 Release Notes and Technical Notes. The system must be rebooted for this update to take effect.

ID	Name	Product	Family	Severity
68417	Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2011-2016)	Nessus	Oracle Linux Local Security Checks	high
61041	Scientific Linux Security Update : kernel on SL6.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	medium
57123	SuSE 11.1 Security Update : OFED (SAT Patch Number 5384)	Nessus	SuSE Local Security Checks	medium
54590	RHEL 6 : kernel (RHSA-2011:0542)	Nessus	Red Hat Local Security Checks	high

CVE-2011-1023

medium

New! CVE Severity Now Using CVSS v3

Description

References

Details

Risk Information

CVSS v2

Vulnerable Software

Configuration 1

Tenable Plugins

high

medium

medium

high