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CVE-2011-2496

Status Candidate

Overview

Integer overflow in the vma_to_resize function in mm/mremap.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (BUG_ON and system crash) via a crafted mremap system call that expands a memory mapping.

Related Files

VMware Security Advisory 2012-0013
Posted Sep 1, 2012
Authored by VMware | Site vmware.com

VMware Security Advisory 2012-0013 - VMware has updated several third party libraries in vSphere and vcOps to address multiple security vulnerabilities.

tags | advisory, vulnerability
advisories | CVE-2009-5029, CVE-2009-5064, CVE-2010-0830, CVE-2010-2761, CVE-2010-4180, CVE-2010-4252, CVE-2010-4410, CVE-2011-0014, CVE-2011-1020, CVE-2011-1089, CVE-2011-1833, CVE-2011-2484, CVE-2011-2496, CVE-2011-2699, CVE-2011-3188, CVE-2011-3209, CVE-2011-3363, CVE-2011-3597, CVE-2011-4108, CVE-2011-4109, CVE-2011-4110, CVE-2011-4128, CVE-2011-4132, CVE-2011-4324, CVE-2011-4325, CVE-2011-4576, CVE-2011-4577, CVE-2011-4609
MD5 | ab37b6926b046653acdeeef66e7c85ba
Ubuntu Security Notice USN-1286-1
Posted Dec 3, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1286-1 - Vasily Averin discovered that the NFS Lock Manager (NLM) incorrectly handled unlock requests. A local attacker could exploit this to cause a denial of service. Robert Swiecki discovered that mapping extensions were incorrectly handled. A local attacker could exploit this to crash the system, leading to a denial of service. It was discovered that the wireless stack incorrectly verified SSID lengths. A local attacker could exploit this to cause a denial of service or gain root privileges. Various other issues were also addressed.

tags | advisory, denial of service, local, root
systems | linux, ubuntu
advisories | CVE-2011-2491, CVE-2011-2496, CVE-2011-2517, CVE-2011-2525, CVE-2011-4077, CVE-2011-4081, CVE-2011-4132, CVE-2011-4326, CVE-2011-4330
MD5 | 181615408671a2238103499da1dc4198
Ubuntu Security Notice USN-1281-1
Posted Nov 27, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1281-1 - 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. It was discovered that an mmap() call with the MAP_PRIVATE flag on "/dev/zero" was incorrectly handled. A local attacker could exploit this to crash the system, leading to a denial of service. Vasily Averin discovered that the NFS Lock Manager (NLM) incorrectly handled unlock requests. A local attacker could exploit this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, local
systems | linux, ubuntu
advisories | CVE-2011-2183, CVE-2011-2479, CVE-2011-2491, CVE-2011-2494, CVE-2011-2495, CVE-2011-2496, CVE-2011-2517, CVE-2011-2905, CVE-2011-2909, CVE-2011-3363
MD5 | aecce7ab016e9e29fd83a81e5038ab8d
Ubuntu Security Notice USN-1280-1
Posted Nov 25, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1280-1 - 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. Robert Swiecki discovered that mapping extensions were incorrectly handled. A local attacker could exploit this to crash the system, leading to a denial of service.

tags | advisory, denial of service, local
systems | linux, ubuntu
advisories | CVE-2011-1585, CVE-2011-2496
MD5 | c15e67e03625b2dbaf511cb80c1d169e
Ubuntu Security Notice USN-1278-1
Posted Nov 24, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1278-1 - 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. 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. Vasily Averin discovered that the NFS Lock Manager (NLM) incorrectly handled unlock requests. A local attacker could exploit this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, local
systems | linux, ubuntu
advisories | CVE-2011-1585, CVE-2011-2183, CVE-2011-2491, CVE-2011-2496, CVE-2011-2517
MD5 | 7b0e3a87a8ff04a70dd2b49f153c0e5c
Ubuntu Security Notice USN-1269-1
Posted Nov 24, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1269-1 - Vasily Averin discovered that the NFS Lock Manager (NLM) incorrectly handled unlock requests. A local attacker could exploit this to cause a denial of service. Robert Swiecki discovered that mapping extensions were incorrectly handled. A local attacker could exploit this to crash the system, leading to a denial of service. It was discovered that the wireless stack incorrectly verified SSID lengths. A local attacker could exploit this to cause a denial of service or gain root privileges. Various other issues were also addressed.

tags | advisory, denial of service, local, root
systems | linux, ubuntu
advisories | CVE-2011-2491, CVE-2011-2496, CVE-2011-2517, CVE-2011-2525
MD5 | 1672934ba43067cd176b264118166431
Ubuntu Security Notice USN-1274-1
Posted Nov 22, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1274-1 - Vasily Averin discovered that the NFS Lock Manager (NLM) incorrectly handled unlock requests. A local attacker could exploit this to cause a denial of service. Robert Swiecki discovered that mapping extensions were incorrectly handled. A local attacker could exploit this to crash the system, leading to a denial of service. It was discovered that the wireless stack incorrectly verified SSID lengths. A local attacker could exploit this to cause a denial of service or gain root privileges. Various other issues were also addressed.

tags | advisory, denial of service, local, root
systems | linux, ubuntu
advisories | CVE-2011-2491, CVE-2011-2496, CVE-2011-2517, CVE-2011-2525
MD5 | 8b2099a6839864a685ebcf30f2a8e06f
Ubuntu Security Notice USN-1272-1
Posted Nov 22, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1272-1 - 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. 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. Vasily Averin discovered that the NFS Lock Manager (NLM) incorrectly handled unlock requests. A local attacker could exploit this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, local
systems | linux, ubuntu
advisories | CVE-2011-1585, CVE-2011-2183, CVE-2011-2491, CVE-2011-2496, CVE-2011-2517
MD5 | c2b4be0547b37342a1395a83ffc9187b
Ubuntu Security Notice USN-1241-1
Posted Oct 25, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1241-1 - It was discovered that the Stream Control Transmission Protocol (SCTP) implementation incorrectly calculated lengths. If the net.sctp.addip_enable variable was turned on, a remote attacker could send specially crafted traffic to crash the system. 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. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, protocol
systems | linux, ubuntu
advisories | CVE-2011-1573, CVE-2011-1576, CVE-2011-1776, CVE-2011-2213, CVE-2011-2494, CVE-2011-2495, CVE-2011-2496, CVE-2011-2497, CVE-2011-2517, CVE-2011-2525, CVE-2011-2695, CVE-2011-2723, CVE-2011-2905, CVE-2011-2909, CVE-2011-2928, CVE-2011-3188, CVE-2011-3191, CVE-2011-3363
MD5 | 447c461aca2cec9be3fb95e5c596cd81
Red Hat Security Advisory 2011-1386-01
Posted Oct 20, 2011
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2011-1386-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. The maximum file offset handling for ext4 file systems could allow a local, unprivileged user to cause a denial of service. IPv6 fragment identification value generation could allow a remote attacker to disrupt a target system's networking, preventing legitimate users from accessing its services. Various other issues in the kernel have also been addressed.

tags | advisory, remote, denial of service, kernel, local
systems | linux, redhat
advisories | CVE-2009-4067, CVE-2011-1160, CVE-2011-1585, CVE-2011-1833, CVE-2011-2484, CVE-2011-2496, CVE-2011-2695, CVE-2011-2699, CVE-2011-2723, CVE-2011-2942, CVE-2011-3131, CVE-2011-3188, CVE-2011-3191, CVE-2011-3209, CVE-2011-3347
MD5 | 501de34ecdb0786ceee3492c07b05128
Red Hat Security Advisory 2011-1350-01
Posted Oct 6, 2011
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2011-1350-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Flaws in the AGPGART driver implementation when handling certain IOCTL commands could allow a local user to cause a denial of service or escalate their privileges. An integer overflow flaw in agp_allocate_memory() could allow a local user to cause a denial of service or escalate their privileges.

tags | advisory, denial of service, overflow, kernel, local
systems | linux, redhat
advisories | CVE-2011-1160, CVE-2011-1745, CVE-2011-1746, CVE-2011-1833, CVE-2011-2022, CVE-2011-2484, CVE-2011-2496, CVE-2011-2521, CVE-2011-2723, CVE-2011-2898, CVE-2011-2918
MD5 | 79a99725db7b874bbfbfc554b61f3e78
Debian Security Advisory 2310-1
Posted Sep 23, 2011
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2310-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leak.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2009-4067, CVE-2011-0712, CVE-2011-1020, CVE-2011-2209, CVE-2011-2211, CVE-2011-2213, CVE-2011-2484, CVE-2011-2491, CVE-2011-2492, CVE-2011-2495, CVE-2011-2496, CVE-2011-2497, CVE-2011-2525, CVE-2011-2928, CVE-2011-3188, CVE-2011-3191
MD5 | 65d8d1aa0819020e5a4ce26c40213ab3
Debian Security Advisory 2303-2
Posted Sep 11, 2011
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2303-2 - The linux-2.6 and user-mode-linux upgrades from DSA-2303-1 has caused a regression that can result in an oops during invalid accesses to /proc/<pid>/maps files.

tags | advisory
systems | linux, debian
advisories | CVE-2011-1020, CVE-2011-1576, CVE-2011-2484, CVE-2011-2491, CVE-2011-2492, CVE-2011-2495, CVE-2011-2496, CVE-2011-2497, CVE-2011-2517, CVE-2011-2525, CVE-2011-2700, CVE-2011-2723, CVE-2011-2905, CVE-2011-2909, CVE-2011-2918, CVE-2011-2928, CVE-2011-3188, CVE-2011-3191
MD5 | 9318148db756c5f402f4dfdd1f2988ea
Debian Security Advisory 2303-1
Posted Sep 9, 2011
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2303-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or privilege escalation.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2011-1020, CVE-2011-1576, CVE-2011-2484, CVE-2011-2491, CVE-2011-2492, CVE-2011-2495, CVE-2011-2496, CVE-2011-2497, CVE-2011-2517, CVE-2011-2525, CVE-2011-2700, CVE-2011-2723, CVE-2011-2905, CVE-2011-2909, CVE-2011-2918, CVE-2011-2928, CVE-2011-3188, CVE-2011-3191
MD5 | 917e363aeecf249e485568a28a642067
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