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CVE-2010-2943

Status Candidate

Overview

The xfs implementation in the Linux kernel before 2.6.35 does not look up inode allocation btrees before reading inode buffers, which allows remote authenticated users to read unlinked files, or read or overwrite disk blocks that are currently assigned to an active file but were previously assigned to an unlinked file, by accessing a stale NFS filehandle.

Related Files

VMware Security Advisory 2011-0012
Posted Oct 14, 2011
Authored by VMware | Site vmware.com

VMware Security Advisory 2011-0012 - VMware ESXi and ESX updates to third party libraries and ESX Service Console address several security issues.

tags | advisory
advisories | CVE-2010-0296, CVE-2010-1083, CVE-2010-1323, CVE-2010-2492, CVE-2010-2798, CVE-2010-2938, CVE-2010-2942, CVE-2010-2943, CVE-2010-3015, CVE-2010-3066, CVE-2010-3067, CVE-2010-3078, CVE-2010-3086, CVE-2010-3296, CVE-2010-3432, CVE-2010-3442, CVE-2010-3477, CVE-2010-3699, CVE-2010-3858, CVE-2010-3859, CVE-2010-3865, CVE-2010-3876, CVE-2010-3877, CVE-2010-3880, CVE-2010-3904, CVE-2010-4072, CVE-2010-4073, CVE-2010-4075
SHA-256 | 7fd5e9259774393a258a0c189d667e06ba833c9fb8b0cd11fa8fb35727aecafa
Ubuntu Security Notice USN-1093-1
Posted Mar 25, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1093-1 - Joel Becker discovered that OCFS2 did not correctly validate on-disk symlink structures. Ben Hutchings discovered that the ethtool interface did not correctly check certain sizes. Eric Dumazet discovered that many network functions could leak kernel stack contents. Dave Chinner discovered that the XFS filesystem did not correctly order inode lookups when exported by NFS. A large number of additional vulnerabilities have also been address.

tags | advisory, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2010-2478, CVE-2010-2942, CVE-2010-2943, CVE-2010-2954, CVE-2010-2955, CVE-2010-2960, CVE-2010-2962, CVE-2010-2963, CVE-2010-3067, CVE-2010-3078, CVE-2010-3079, CVE-2010-3080, CVE-2010-3084, CVE-2010-3296, CVE-2010-3297, CVE-2010-3298, CVE-2010-3310, CVE-2010-3432, CVE-2010-3437, CVE-2010-3442, CVE-2010-3477, CVE-2010-3705, CVE-2010-3848, CVE-2010-3849, CVE-2010-3850, CVE-2010-3858, CVE-2010-3859, CVE-2010-3861
SHA-256 | c0782ec52287eab8561329a78cec59713d72aef79fd6b9dd6d11304a47144159
Ubuntu Security Notice USN-1083-1
Posted Mar 3, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1083-1 - Multiple vulnerabilities have been discovered and addressed in the Linux 2.6 kernel. Al Viro discovered a race condition in the TTY driver. Gleb Napatov discovered that KVM did not correctly check certain privileged operations. Dan Rosenberg discovered that the MOVE_EXT ext4 ioctl did not correctly check file permissions. Dan Rosenberg discovered that the swapexit xfs ioctl did not correctly check file permissions. Suresh Jayaraman discovered that CIFS did not correctly validate certain response packats. Many other issues have also been addressed.

tags | advisory, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2009-4895, CVE-2010-0435, CVE-2010-2066, CVE-2010-2226, CVE-2010-2248, CVE-2010-2478, CVE-2010-2495, CVE-2010-2521, CVE-2010-2524, CVE-2010-2537, CVE-2010-2538, CVE-2010-2798, CVE-2010-2942, CVE-2010-2943, CVE-2010-2946, CVE-2010-2954, CVE-2010-2955, CVE-2010-2960, CVE-2010-2962, CVE-2010-2963, CVE-2010-3015, CVE-2010-3067, CVE-2010-3078, CVE-2010-3079, CVE-2010-3080, CVE-2010-3084, CVE-2010-3296, CVE-2010-3297
SHA-256 | 54cb1f4aa7b55d1d5bede6d79988ac926e5fd1c698bb4ab072e98146004d10c9
Ubuntu Security Notice USN-1074-2
Posted Feb 28, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1074-2 - USN-1074-1 fixed vulnerabilities in linux-fsl-imx51 in Ubuntu 9.10. This update provides the corresponding updates for Ubuntu 10.04. Multiple vulnerabilities have been discovered and addressed in the Linux kernel. Al Viro discovered a race condition in the TTY driver. Dan Rosenberg discovered that the MOVE_EXT ext4 ioctl did not correctly check file permissions. Neil Brown discovered that NFSv4 did not correctly check certain write requests. David Howells discovered that DNS resolution in CIFS could be spoofed. Various other issues have also been addressed.

tags | advisory, kernel, spoof, vulnerability
systems | linux, ubuntu
advisories | CVE-2009-4895, CVE-2010-2066, CVE-2010-2226, CVE-2010-2240, CVE-2010-2248, CVE-2010-2478, CVE-2010-2495, CVE-2010-2521, CVE-2010-2524, CVE-2010-2538, CVE-2010-2798, CVE-2010-2803, CVE-2010-2942, CVE-2010-2943, CVE-2010-2946, CVE-2010-2954, CVE-2010-2955, CVE-2010-2959, CVE-2010-2962, CVE-2010-2963, CVE-2010-3015, CVE-2010-3067, CVE-2010-3078, CVE-2010-3079, CVE-2010-3080, CVE-2010-3081, CVE-2010-3084, CVE-2010-3296
SHA-256 | 4e15776b2f435c92a453d8aac2203f207e854e4b3f906900fe4b4f17ed2e2a0c
Ubuntu Security Notice USN-1074-1
Posted Feb 26, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1074-1 - Multiple vulnerabilities have been discovered and addressed in the Linux kernel. Al Viro discovered a race condition in the TTY driver. Dan Rosenberg discovered that the MOVE_EXT ext4 ioctl did not correctly check file permissions. Neil Brown discovered that NFSv4 did not correctly check certain write requests. David Howells discovered that DNS resolution in CIFS could be spoofed. Various other issues have also been addressed.

tags | advisory, kernel, spoof, vulnerability
systems | linux, ubuntu
advisories | CVE-2009-4895, CVE-2010-2066, CVE-2010-2226, CVE-2010-2240, CVE-2010-2248, CVE-2010-2478, CVE-2010-2495, CVE-2010-2521, CVE-2010-2524, CVE-2010-2538, CVE-2010-2798, CVE-2010-2803, CVE-2010-2942, CVE-2010-2943, CVE-2010-2946, CVE-2010-2954, CVE-2010-2955, CVE-2010-2959, CVE-2010-2962, CVE-2010-2963, CVE-2010-3015, CVE-2010-3067, CVE-2010-3078, CVE-2010-3079, CVE-2010-3080, CVE-2010-3081, CVE-2010-3084, CVE-2010-3296
SHA-256 | f173020807305076d904d843200bcb5d00acee46687f271c4a2338df4358536b
Ubuntu Security Notice USN-1072-1
Posted Feb 26, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1072-1 - Multiple vulnerabilities have been discovered and addressed in the Linux kernel. Gleb Napatov discovered that KVM did not correctly check certain privileged operations. Dave Chinner discovered that the XFS filesystem did not correctly order inode lookups when exported by NFS. Dan Rosenberg discovered that several network ioctls did not clear kernel memory correctly. Dan Jacobson discovered that ThinkPad video output was not correctly access controlled. Various other issues have also been addressed.

tags | advisory, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2010-0435, CVE-2010-2943, CVE-2010-3296, CVE-2010-3297, CVE-2010-3448, CVE-2010-3698, CVE-2010-3699, CVE-2010-3858, CVE-2010-3859, CVE-2010-3873, CVE-2010-3875, CVE-2010-3876, CVE-2010-3877, CVE-2010-3880, CVE-2010-4072, CVE-2010-4074, CVE-2010-4078, CVE-2010-4079, CVE-2010-4080, CVE-2010-4081, CVE-2010-4083, CVE-2010-4157, CVE-2010-4160, CVE-2010-4248
SHA-256 | 812b3e28ec2f6132fd1f95415c8a0227bd33b2de0533cab3591015f15aead3cb
Ubuntu Security Notice USN-1057-1
Posted Feb 4, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1057-1 - Dave Chinner discovered that the XFS filesystem did not correctly order inode lookups when exported by NFS. A remote attacker could exploit this to read or write disk blocks that had changed file assignment or had become unlinked, leading to a loss of privacy. Dan Rosenberg discovered that several network ioctls did not clear kernel memory correctly. A local user could exploit this to read kernel stack memory, leading to a loss of privacy. Kees Cook and Vasiliy Kulikov discovered that the shm interface did not clear kernel memory correctly. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy.

tags | advisory, remote, kernel, local
systems | linux, ubuntu
advisories | CVE-2010-2943, CVE-2010-3297, CVE-2010-4072
SHA-256 | 9a69c98fb0ad40a633e5492b8214a1d0050651faf008c16b90593fb3071e0bc6
Ubuntu Security Notice USN-1041-1
Posted Jan 11, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1041-1 - Dan Rosenberg discovered that the btrfs filesystem did not correctly validate permissions when using the clone function. Dave Chinner discovered that the XFS filesystem did not correctly order inode lookups when exported by NFS. Kees Cook discovered that the Intel i915 graphics driver did not correctly validate memory regions. Various other issues have also been addressed.

tags | advisory
systems | linux, ubuntu
advisories | CVE-2010-2537, CVE-2010-2538, CVE-2010-2943, CVE-2010-2962, CVE-2010-3079, CVE-2010-3296, CVE-2010-3297, CVE-2010-3298, CVE-2010-3301, CVE-2010-3858, CVE-2010-3861, CVE-2010-4072
SHA-256 | ea26db62a4d97743642eaeed97eb665811c26eb91fe42e08a560cf013565d264
XFS Deleted Inode Information Disclosure
Posted Sep 30, 2010
Authored by David Chinner

Local information disclosure exploit that makes use of an XFS filesystem vulnerability.

tags | exploit, local, info disclosure
advisories | CVE-2010-2943
SHA-256 | ec938c2e616d17c87a0f79d120da932365ac963f62a8000dcc8391e2586f74ae
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