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CVE-2013-4143
The (1) checkPasswd and (2) checkGroupXlockPasswds functions in xlockmore before 5.43 do not properly handle when a NULL value is returned…
Low2.1EPSS 0.40%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
The (1) checkPasswd and (2) checkGroupXlockPasswds functions in xlockmore before 5.43 do not properly handle when a NULL value is returned upon an error by the crypt or dispcrypt function as implemented in glibc 2.17 and later, which allows attackers to bypass the screen lock via vectors related to invalid salts.
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)
- 0.40% · top 66% of all CVEs (6 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
- n/a
Affected products
n/a
- affected n/a
References (3)
- http://www.tux.org/~bagleyd/xlock/xlockmore.README (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20130718 Re: CVE Request - xlockmore 5.43 fixes a security flaw (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20130716 CVE Request - xlockmore 5.43 fixes a security flaw (opens in a new tab)mailing-listx_refsource_MLISTx_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)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2013-4143)Record last updated .