CVE-2013-6382

Published: 26 November 2013

Multiple buffer underflows in the XFS implementation in the Linux kernel through 3.12.1 allow local users to cause a denial of service (memory corruption) or possibly have unspecified other impact by leveraging the CAP_SYS_ADMIN capability for a (1) XFS_IOC_ATTRLIST_BY_HANDLE or (2) XFS_IOC_ATTRLIST_BY_HANDLE_32 ioctl call with a crafted length value, related to the xfs_attrlist_by_handle function in fs/xfs/xfs_ioctl.c and the xfs_compat_attrlist_by_handle function in fs/xfs/xfs_ioctl32.c.

From the Ubuntu security team

Nico Golde and Fabian Yamaguchi reported buffer underflow errors in the implementation of the XFS filesystem in the Linux kernel. A local user with CAP_SYS_ADMIN could exploit these flaw to cause a denial of service (memory corruption) or possibly other unspecified issues.

Notes

needs CAP_SYS_ADMIN

Status

References

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-6382
• http://www.spinics.net/lists/xfs/msg23343.html
• https://bugzilla.redhat.com/show_bug.cgi?id=1033603
• http://www.openwall.com/lists/oss-security/2013/11/22/5
• https://ubuntu.com/security/notices/USN-2109-1
• https://ubuntu.com/security/notices/USN-2110-1
• https://ubuntu.com/security/notices/USN-2113-1
• https://ubuntu.com/security/notices/USN-2117-1
• https://ubuntu.com/security/notices/USN-2128-1
• https://ubuntu.com/security/notices/USN-2129-1
• https://ubuntu.com/security/notices/USN-2135-1
• https://ubuntu.com/security/notices/USN-2138-1
• https://ubuntu.com/security/notices/USN-2139-1
• https://ubuntu.com/security/notices/USN-2141-1
• https://ubuntu.com/security/notices/USN-2158-1
• NVD
• Launchpad
• Debian

Bugs

• https://launchpad.net/bugs/1256091