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CVE-2011-4110
The user_update function in security/keys/user_defined.c in the Linux kernel 2.6 allows local users to cause a denial of service (NULL…
Low2.1EPSS 0.47%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
The user_update function in security/keys/user_defined.c in the Linux kernel 2.6 allows local users to cause a denial of service (NULL pointer dereference and kernel oops) via vectors related to a user-defined key and "updating a negative key into a fully instantiated key."
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Low2.1 | AV:L/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 0.47% · top 60% of all CVEs (2 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.1.
Weakness
Affected products
n/a
- affected n/a
References (11)
- [linux-kernel] 20111115 [PATCH] KEYS: Fix a NULL pointer deref in the user-defined key type (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 50755 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- USN-1328-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-1344-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- [oss-security] 20111122 Re: CVE-2011-4110 kernel: keys: NULL pointer deref in the user-defined key type (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20111121 CVE-2011-4110 kernel: keys: NULL pointer deref in the user-defined key type (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-1324-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=751297 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 47754 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- [oss-security] 20111121 Re: CVE-2011-4110 kernel: keys: NULL pointer deref in the user-defined key type (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- HPSBGN02970 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .