Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. (CVE-2010-4076, CVE-2010-4077)

Alex Shi and Eric Dumazet discovered that the network stack did not correctly handle packet backlogs. A remote attacker could exploit this by sending a large amount of network traffic to cause the system to run out of memory, leading to a denial of service. (CVE-2010-4251, CVE-2010-4805)

It was discovered that the /proc filesystem did not correctly handle permission changes when programs executed. A local attacker could hold open files to examine details about programs running with higher privileges, potentially increasing the chances of exploiting additional vulnerabilities. (CVE-2011-1020)

Dan Rosenberg discovered that the X.25 Rose network stack did not correctly handle certain fields. If a system was running with Rose enabled, a remote attacker could send specially crafted traffic to gain root privileges. (CVE-2011-1493)

Timo Warns discovered that the GUID partition parsing routines did not correctly validate certain structures. A local attacker with physical access could plug in a specially crafted block device to crash the system, leading to a denial of service. (CVE-2011-1577)

It was discovered that CIFS incorrectly handled authentication. When a user had a CIFS share mounted that required authentication, a local user could mount the same share without knowing the correct password.
(CVE-2011-1585)

It was discovered that the GRE protocol incorrectly handled netns initialization. A remote attacker could send a packet while the ip_gre module was loading, and crash the system, leading to a denial of service. (CVE-2011-1767)

It was discovered that the IP/IP protocol incorrectly handled netns initialization. A remote attacker could send a packet while the ipip module was loading, and crash the system, leading to a denial of service. (CVE-2011-1768)

Ben Hutchings reported a flaw in the kernel's handling of corrupt LDM partitions. A local user could exploit this to cause a denial of service or escalate privileges. (CVE-2011-2182)

Andrea Righi discovered a race condition in the KSM memory merging support. If KSM was being used, a local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2183)

Dan Rosenberg discovered that the IPv4 diagnostic routines did not correctly validate certain requests. A local attacker could exploit this to consume CPU resources, leading to a denial of service.
(CVE-2011-2213)

Vasiliy Kulikov discovered that taskstats listeners were not correctly handled. A local attacker could expoit this to exhaust memory and CPU resources, leading to a denial of service. (CVE-2011-2484)

It was discovered that Bluetooth l2cap and rfcomm did not correctly initialize structures. A local attacker could exploit this to read portions of the kernel stack, leading to a loss of privacy.
(CVE-2011-2492)

Mauro Carvalho Chehab discovered that the si4713 radio driver did not correctly check the length of memory copies. If this hardware was available, a local attacker could exploit this to crash the system or gain root privileges. (CVE-2011-2700)

Herbert Xu discovered that certain fields were incorrectly handled when Generic Receive Offload (CVE-2011-2723)

Vasiliy Kulikov discovered that the Comedi driver did not correctly clear memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2011-2909)

The performance counter subsystem did not correctly handle certain counters. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2918)

A flaw was found in the Linux kernel's /proc/*/*map* interface. A local, unprivileged user could exploit this flaw to cause a denial of service. (CVE-2011-3637)

Ben Hutchings discovered several flaws in the Linux Rose (X.25 PLP) layer. A local user or a remote user on an X.25 network could exploit these flaws to execute arbitrary code as root. (CVE-2011-4914).

Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. (CVE-2010-4076, CVE-2010-4077)

Alex Shi and Eric Dumazet discovered that the network stack did not correctly handle packet backlogs. A remote attacker could exploit this by sending a large amount of network traffic to cause the system to run out of memory, leading to a denial of service. (CVE-2010-4251, CVE-2010-4805)

It was discovered that the /proc filesystem did not correctly handle permission changes when programs executed. A local attacker could hold open files to examine details about programs running with higher privileges, potentially increasing the chances of exploiting additional vulnerabilities. (CVE-2011-1020)

Dan Rosenberg discovered that the X.25 Rose network stack did not correctly handle certain fields. If a system was running with Rose enabled, a remote attacker could send specially crafted traffic to gain root privileges. (CVE-2011-1493)

Timo Warns discovered that the GUID partition parsing routines did not correctly validate certain structures. A local attacker with physical access could plug in a specially crafted block device to crash the system, leading to a denial of service. (CVE-2011-1577)

It was discovered that CIFS incorrectly handled authentication. When a user had a CIFS share mounted that required authentication, a local user could mount the same share without knowing the correct password.
(CVE-2011-1585)

It was discovered that the GRE protocol incorrectly handled netns initialization. A remote attacker could send a packet while the ip_gre module was loading, and crash the system, leading to a denial of service. (CVE-2011-1767)

It was discovered that the IP/IP protocol incorrectly handled netns initialization. A remote attacker could send a packet while the ipip module was loading, and crash the system, leading to a denial of service. (CVE-2011-1768)

Ben Hutchings reported a flaw in the kernel's handling of corrupt LDM partitions. A local user could exploit this to cause a denial of service or escalate privileges. (CVE-2011-2182)

Andrea Righi discovered a race condition in the KSM memory merging support. If KSM was being used, a local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2183)

Dan Rosenberg discovered that the IPv4 diagnostic routines did not correctly validate certain requests. A local attacker could exploit this to consume CPU resources, leading to a denial of service.
(CVE-2011-2213)

Vasiliy Kulikov discovered that taskstats listeners were not correctly handled. A local attacker could exploit this to exhaust memory and CPU resources, leading to a denial of service. (CVE-2011-2484)

It was discovered that Bluetooth l2cap and rfcomm did not correctly initialize structures. A local attacker could exploit this to read portions of the kernel stack, leading to a loss of privacy.
(CVE-2011-2492)

Mauro Carvalho Chehab discovered that the si4713 radio driver did not correctly check the length of memory copies. If this hardware was available, a local attacker could exploit this to crash the system or gain root privileges. (CVE-2011-2700)

Herbert Xu discovered that certain fields were incorrectly handled when Generic Receive Offload (CVE-2011-2723)

Vasiliy Kulikov discovered that the Comedi driver did not correctly clear memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2011-2909)

The performance counter subsystem did not correctly handle certain counters. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2918)

A flaw was found in the Linux kernel's /proc/*/*map* interface. A local, unprivileged user could exploit this flaw to cause a denial of service. (CVE-2011-3637)

Ben Hutchings discovered several flaws in the Linux Rose (X.25 PLP) layer. A local user or a remote user on an X.25 network could exploit these flaws to execute arbitrary code as root. (CVE-2011-4914).

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

Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or privilege escalation. The Common Vulnerabilities and Exposures project identifies the following problems :

  - CVE-2011-1020     Kees Cook discovered an issue in the /proc filesystem     that allows local users to gain access to sensitive     process information after execution of a setuid binary.

  - CVE-2011-1576     Ryan Sweat discovered an issue in the VLAN     implementation. Local users may be able to cause a     kernel memory leak, resulting in a denial of service.

  - CVE-2011-2484     Vasiliy Kulikov of Openwall discovered that the number     of exit handlers that a process can register is not     capped, resulting in local denial of service through     resource exhaustion (CPU time and memory).

  - CVE-2011-2491     Vasily Averin discovered an issue with the NFS locking     implementation. A malicious NFS server can cause a     client to hang indefinitely in an unlock call.

  - CVE-2011-2492     Marek Kroemeke and Filip Palian discovered that     uninitialized struct elements in the Bluetooth subsystem     could lead to a leak of sensitive kernel memory through     leaked stack memory.

  - CVE-2011-2495     Vasiliy Kulikov of Openwall discovered that the io file     of a process' proc directory was world-readable,     resulting in local information disclosure of information     such as password lengths.

  - CVE-2011-2496     Robert Swiecki discovered that mremap() could be abused     for local denial of service by triggering a BUG_ON     assert.

  - CVE-2011-2497     Dan Rosenberg discovered an integer underflow in the     Bluetooth subsystem, which could lead to denial of     service or privilege escalation.

  - CVE-2011-2517     It was discovered that the netlink-based wireless     configuration interface performed insufficient length     validation when parsing SSIDs, resulting in buffer     overflows. Local users with the CAP_NET_ADMIN capability     can cause a denial of service.

  - CVE-2011-2525     Ben Pfaff reported an issue in the network scheduling     code. A local user could cause a denial of service (NULL     pointer dereference) by sending a specially crafted     netlink message.

  - CVE-2011-2700     Mauro Carvalho Chehab of Red Hat reported a buffer     overflow issue in the driver for the Si4713 FM Radio     Transmitter driver used by N900 devices. Local users     could exploit this issue to cause a denial of service or     potentially gain elevated privileges.

  - CVE-2011-2723     Brent Meshier reported an issue in the GRO (generic     receive offload) implementation. This can be exploited     by remote users to create a denial of service (system     crash) in certain network device configurations.

  - CVE-2011-2905     Christian Ohm discovered that the 'perf' analysis tool     searches for its config files in the current working     directory. This could lead to denial of service or     potential privilege escalation if a user with elevated     privileges is tricked into running 'perf' in a directory     under the control of the attacker.

  - CVE-2011-2909     Vasiliy Kulikov of Openwall discovered that a     programming error in the Comedi driver could lead to the     information disclosure through leaked stack memory.

  - CVE-2011-2918     Vince Weaver discovered that incorrect handling of     software event overflows in the 'perf' analysis tool     could lead to local denial of service.

  - CVE-2011-2928     Timo Warns discovered that insufficient validation of Be     filesystem images could lead to local denial of service     if a malformed filesystem image is mounted.

  - CVE-2011-3188     Dan Kaminsky reported a weakness of the sequence number     generation in the TCP protocol implementation. This can     be used by remote attackers to inject packets into an     active session.

  - CVE-2011-3191     Darren Lavender reported an issue in the Common Internet     File System (CIFS). A malicious file server could cause     memory corruption leading to a denial of service.

This update also includes a fix for a regression introduced with the previous security fix for CVE-2011-1768 (Debian bug #633738).

Ryan Sweat discovered that the kernel incorrectly handled certain VLAN packets. On some systems, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service.
(CVE-2011-1576)

Timo Warns discovered that the EFI GUID partition table was not correctly parsed. A physically local attacker that could insert mountable devices could exploit this to crash the system or possibly gain root privileges. (CVE-2011-1776)

Dan Rosenberg discovered that the IPv4 diagnostic routines did not correctly validate certain requests. A local attacker could exploit this to consume CPU resources, leading to a denial of service.
(CVE-2011-2213)

Dan Rosenberg discovered that the Bluetooth stack incorrectly handled certain L2CAP requests. If a system was using Bluetooth, a remote attacker could send specially crafted traffic to crash the system or gain root privileges. (CVE-2011-2497)

Mauro Carvalho Chehab discovered that the si4713 radio driver did not correctly check the length of memory copies. If this hardware was available, a local attacker could exploit this to crash the system or gain root privileges. (CVE-2011-2700)

Herbert Xu discovered that certain fields were incorrectly handled when Generic Receive Offload (CVE-2011-2723)

Time Warns discovered that long symlinks were incorrectly handled on Be filesystems. A local attacker could exploit this with a malformed Be filesystem and crash the system, leading to a denial of service.
(CVE-2011-2928)

Dan Kaminsky discovered that the kernel incorrectly handled random sequence number generation. An attacker could use this flaw to possibly predict sequence numbers and inject packets. (CVE-2011-3188)

Darren Lavender discovered that the CIFS client incorrectly handled certain large values. A remote attacker with a malicious server could exploit this to crash the system or possibly execute arbitrary code as the root user. (CVE-2011-3191)

Timo Warns discovered that the EFI GUID partition table was not correctly parsed. A physically local attacker that could insert mountable devices could exploit this to crash the system or possibly gain root privileges. (CVE-2011-1776)

Dan Rosenberg discovered that the IPv4 diagnostic routines did not correctly validate certain requests. A local attacker could exploit this to consume CPU resources, leading to a denial of service.
(CVE-2011-2213)

Dan Rosenberg discovered that the Bluetooth stack incorrectly handled certain L2CAP requests. If a system was using Bluetooth, a remote attacker could send specially crafted traffic to crash the system or gain root privileges. (CVE-2011-2497)

It was discovered that the EXT4 filesystem contained multiple off-by-one flaws. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2695)

Mauro Carvalho Chehab discovered that the si4713 radio driver did not correctly check the length of memory copies. If this hardware was available, a local attacker could exploit this to crash the system or gain root privileges. (CVE-2011-2700)

Herbert Xu discovered that certain fields were incorrectly handled when Generic Receive Offload (CVE-2011-2723)

Time Warns discovered that long symlinks were incorrectly handled on Be filesystems. A local attacker could exploit this with a malformed Be filesystem and crash the system, leading to a denial of service.
(CVE-2011-2928)

Dan Kaminsky discovered that the kernel incorrectly handled random sequence number generation. An attacker could use this flaw to possibly predict sequence numbers and inject packets. (CVE-2011-3188)

Darren Lavender discovered that the CIFS client incorrectly handled certain large values. A remote attacker with a malicious server could exploit this to crash the system or possibly execute arbitrary code as the root user. (CVE-2011-3191)

The openSUSE 11.4 kernel was updated to fix various bugs and security issues.

This is the final update of the 2.6.37 kernel of openSUSE 11.4.

Dan Rosenberg discovered that the IPv4 diagnostic routines did not correctly validate certain requests. A local attacker could exploit this to consume CPU resources, leading to a denial of service.
(CVE-2011-2213)

Dan Rosenberg discovered that the Bluetooth stack incorrectly handled certain L2CAP requests. If a system was using Bluetooth, a remote attacker could send specially crafted traffic to crash the system or gain root privileges. (CVE-2011-2497)

It was discovered that the EXT4 filesystem contained multiple off-by-one flaws. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2695)

Mauro Carvalho Chehab discovered that the si4713 radio driver did not correctly check the length of memory copies. If this hardware was available, a local attacker could exploit this to crash the system or gain root privileges. (CVE-2011-2700)

Herbert Xu discovered that certain fields were incorrectly handled when Generic Receive Offload (CVE-2011-2723)

Time Warns discovered that long symlinks were incorrectly handled on Be filesystems. A local attacker could exploit this with a malformed Be filesystem and crash the system, leading to a denial of service.
(CVE-2011-2928)

Dan Kaminsky discovered that the kernel incorrectly handled random sequence number generation. An attacker could use this flaw to possibly predict sequence numbers and inject packets. (CVE-2011-3188)

Darren Lavender discovered that the CIFS client incorrectly handled certain large values. A remote attacker with a malicious server could exploit this to crash the system or possibly execute arbitrary code as the root user. (CVE-2011-3191).

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

The SUSE Linux Enterprise 11 Service Pack 1 kernel was updated to 2.6.32.45 and fixes various bugs and security issues.

The following security issues have been fixed :

  - Timo Warns reported an issue in the Linux implementation     for GUID partitions. Users with physical access could     gain access to sensitive kernel memory by adding a     storage device with a specially crafted corrupted     invalid partition table. (CVE-2011-1776)

  - The second part of this fix was not yet applied to our     kernel: arch/x86/kvm/x86.c in the Linux kernel before     2.6.36.2 does not initialize certain structure members,     which allows local users to obtain potentially sensitive     information from kernel stack memory via read operations     on the /dev/kvm device. (CVE-2010-3881)

  - The /proc/PID/io interface could be used by local     attackers to gain information on other processes like     number of password characters typed or similar.
    (CVE-2011-2495)

  - A small buffer overflow in the radio driver si4713-i2c     was fixed that could potentially used by local attackers     to crash the kernel or potentially execute code.
    (CVE-2011-2700)

  - A kernel information leak in the comedi driver from     kernel to userspace was fixed. (CVE-2011-2909)

  - In the perf framework software event overflows could     deadlock or delete an uninitialized timer.
    (CVE-2011-2918)

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
56207	Ubuntu 10.10 : linux-mvl-dove vulnerabilities (USN-1208-1)	Nessus	Ubuntu Local Security Checks	2011/9/15	2016/5/19	high
56305	Ubuntu 10.04 LTS : linux-ec2 vulnerabilities (USN-1216-1)	Nessus	Ubuntu Local Security Checks	2011/9/27	2019/9/19	high
56130	Debian DSA-2303-2 : linux-2.6 - privilege escalation/denial of service/information leak	Nessus	Debian Local Security Checks	2011/9/9	2021/1/11	critical
56345	USN-1220-1 : linux-ti-omap4 vulnerabilities	Nessus	Ubuntu Local Security Checks	2011/9/30	2016/12/1	critical
56479	USN-1228-1 : linux-ti-omap4 vulnerabilities	Nessus	Ubuntu Local Security Checks	2011/10/13	2016/12/1	critical
74801	openSUSE Security Update : kernel (openSUSE-SU-2012:1439-1)	Nessus	SuSE Local Security Checks	2014/6/13	2021/1/19	critical
56191	Ubuntu 10.04 LTS : linux-mvl-dove vulnerabilities (USN-1203-1)	Nessus	Ubuntu Local Security Checks	2011/9/14	2016/5/19	high
56343	Ubuntu 10.04 LTS : linux vulnerabilities (USN-1218-1)	Nessus	Ubuntu Local Security Checks	2011/9/30	2019/9/19	high
56645	Ubuntu 11.04 : linux vulnerabilities (USN-1246-1)	Nessus	Ubuntu Local Security Checks	2011/10/26	2019/9/19	critical
57109	SuSE 11.1 Security Update : Linux kernel (SAT Patch Numbers 5031 / 5055)	Nessus	SuSE Local Security Checks	2011/12/13	2021/1/19	medium

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