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CVE-2014-9710

Status Candidate

Overview

The Btrfs implementation in the Linux kernel before 3.19 does not ensure that the visible xattr state is consistent with a requested replacement, which allows local users to bypass intended ACL settings and gain privileges via standard filesystem operations (1) during an xattr-replacement time window, related to a race condition, or (2) after an xattr-replacement attempt that fails because the data does not fit.

Related Files

Ubuntu Security Notice USN-2663-1
Posted Jul 7, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2663-1 - Alexandre Oliva reported a race condition flaw in the btrfs file system's handling of extended attributes (xattrs). A local attacker could exploit this flaw to bypass ACLs and potentially escalate privileges. A race condition was discovered in the Linux kernel's file_handle size verification. A local user could exploit this flaw to read potentially sensitive memory locations. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2014-9710, CVE-2015-1420, CVE-2015-4001, CVE-2015-4002, CVE-2015-4003, CVE-2015-4167
MD5 | 553c805e30360d815f4bfc8613663385
Ubuntu Security Notice USN-2662-1
Posted Jul 7, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2662-1 - Alexandre Oliva reported a race condition flaw in the btrfs file system's handling of extended attributes (xattrs). A local attacker could exploit this flaw to bypass ACLs and potentially escalate privileges. A race condition was discovered in the Linux kernel's file_handle size verification. A local user could exploit this flaw to read potentially sensitive memory locations. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2014-9710, CVE-2015-1420, CVE-2015-4001, CVE-2015-4002, CVE-2015-4003, CVE-2015-4167
MD5 | 35ff0d826d13daf55a94cf200068053c
Ubuntu Security Notice USN-2616-1
Posted May 20, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2616-1 - Alexandre Oliva reported a race condition flaw in the btrfs file system's handling of extended attributes (xattrs). A local attacker could exploit this flaw to bypass ACLs and potentially escalate privileges. A memory corruption issue was discovered in AES decryption when using the Intel AES-NI accelerated code path. A remote attacker could exploit this flaw to cause a denial of service (system crash) or potentially escalate privileges on Intel base machines with AEC-GCM mode IPSec security association. Various other issues were also addressed.

tags | advisory, remote, denial of service, local
systems | linux, ubuntu
advisories | CVE-2014-9710, CVE-2015-3331, CVE-2015-3332
MD5 | b7a57d122b1969632efca942f390ac2d
Ubuntu Security Notice USN-2615-1
Posted May 20, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2615-1 - Alexandre Oliva reported a race condition flaw in the btrfs file system's handling of extended attributes (xattrs). A local attacker could exploit this flaw to bypass ACLs and potentially escalate privileges. A memory corruption issue was discovered in AES decryption when using the Intel AES-NI accelerated code path. A remote attacker could exploit this flaw to cause a denial of service (system crash) or potentially escalate privileges on Intel base machines with AEC-GCM mode IPSec security association. Various other issues were also addressed.

tags | advisory, remote, denial of service, local
systems | linux, ubuntu
advisories | CVE-2014-9710, CVE-2015-3331, CVE-2015-3332
MD5 | d99ecd759400d48396ec2d7e03ae2273
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