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CVE-2013-4623
The x509parse_crt function in x509.h in PolarSSL 1.1.x before 1.1.7 and 1.2.x before 1.2.8 does not properly parse certificate messages…
Medium4.3EPSS 1.9%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The x509parse_crt function in x509.h in PolarSSL 1.1.x before 1.1.7 and 1.2.x before 1.2.8 does not properly parse certificate messages during the SSL/TLS handshake, which allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a certificate message that contains a PEM encoded certificate.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.3 | AV:N/AC:M/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 1.9% · top 20% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Weakness
Affected products
n/a
- affected n/a
References (8)
- FEDORA-2013-16258 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- https://polarssl.org/tech-updates/security-advisories/polarssl-security-advisory-2013-03 (opens in a new tab)x_refsource_CONFIRMx_transferred
- FEDORA-2013-16317 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=997767 (opens in a new tab)x_refsource_CONFIRMx_transferred
- FEDORA-2013-16356 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- https://github.com/polarssl/polarssl/commit/1922a4e6aade7b1d685af19d4d9339ddb5c02859 (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-2782 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 61764 (opens in a new tab)vdb-entryx_refsource_BIDx_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)
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[](https://trackcve.app/cve/CVE-2013-4623)Record last updated .