CVE-2013-4247
Off-by-one error in the build_unc_path_to_root function in fs/cifs/connect.c in the Linux kernel...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2013-4247- CVSS 2.0
- 7.8 High
AV:N/AC:L/Au:N/C:N/I:N/A:C - Weakness
- CWE-189
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2013-4247- Updated
- 2026-11-02
EUVDEUVD-2013-4151 No score
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.
- Record
EUVD-2013-4151- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-cf8v-r742-2v78 No score
Off-by-one error in the build_unc_path_to_root function in fs/cifs/connect.c in the Linux kernel...
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.
- Record
GHSA-cf8v-r742-2v78- Updated
- 2026-11-02
OSV No score
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.
- Record
CVE-2013-4247- Updated
- 2026-11-02
OSVDEBIAN-CVE-2013-4247 No score
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.
- Record
DEBIAN-CVE-2013-4247- Updated
- 2026-11-02
OSVUBUNTU-CVE-2013-4247 No score
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.
- Record
UBUNTU-CVE-2013-4247- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2013-4247 is a high vulnerability (CVSS 7.8) in Linux Kernel, published August 14, 2013. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.64%, the 89th percentile. Fixed in linux 3.9.6-1.
References
github.com/torvalds/linux/commit/1fc29bacedeabb278080e31bb9c1ecb49f143c3b
bugzilla.redhat.com/show_bug.cgi?id=998401
kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.9.6
openwall.com/lists/oss-security/2013/08/14/10
git.kernel.org?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1fc29bacedeabb278080e31bb9c1ecb49f143c3b
nvd.nist.gov/vuln/detail/CVE-2013-4247
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security-tracker.debian.org/tracker/CVE-2013-4247
ubuntu.com/security/CVE-2013-4247
cve.org/CVERecord?id=CVE-2013-4247