CVE-2013-4247

Off-by-one error in the build_unc_path_to_root function in fs/cifs/connect.c in the Linux kernel before 3.9.6 allows remote attackers to cause a denial of service (memory corruption and system crash) via a DFS share mount operation that triggers use of an unexpected DFS referral name length.

• CWE-189

• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1fc29bacedeabb278080e31bb9c1ecb49f143c3b
• http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.9.6Vendor Advisory
• http://www.openwall.com/lists/oss-security/2013/08/14/10Mailing List, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=998401Issue Tracking, Third Party Advisory
• https://github.com/torvalds/linux/commit/1fc29bacedeabb278080e31bb9c1ecb49f143c3bExploit, Patch, Third Party Advisory
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1fc29bacedeabb278080e31bb9c1ecb49f143c3b
• http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.9.6Vendor Advisory
• http://www.openwall.com/lists/oss-security/2013/08/14/10Mailing List, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=998401Issue Tracking, Third Party Advisory
• https://github.com/torvalds/linux/commit/1fc29bacedeabb278080e31bb9c1ecb49f143c3bExploit, Patch, Third Party Advisory

Published

Aug 25, 2013

Last Modified

Jun 16, 2026

Status

Modified

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