CVE catalog
CVE-2013-4314
pyopenssl: CVE-2013-4314
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.20% · Oct 27, 2026
The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | pyopenssl | sid | 26.4.0-1 | fixed |
| Debian | pyopenssl | forky | 26.4.0-1 | fixed |
| Debian | pyopenssl | trixie | 25.0.0-1+deb13u1 | fixed |
| Debian | pyopenssl | bookworm | 23.0.0-1 | fixed |
| Opensuse | python-pyOpenSSL | tumbleweed | 26.4.0-1.1 | fixed |
| Opensuse | python-pyOpenSSL | tumbleweed | 24.1.0-1.2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | pyopenssl | source | sid | 0.13-2.1 | not yet assigned | Not reported | [722055] |
| Debian | pyopenssl | source | forky | 0.13-2.1 | not yet assigned | Not reported | [722055] |
| Debian | pyopenssl | source | trixie | 0.13-2.1 | not yet assigned | Not reported | [722055] |
| Debian | pyopenssl | source | bookworm | 0.13-2.1 | not yet assigned | Not reported | [722055] |
| Opensuse | python-pyOpenSSL | rpm | tumbleweed | 26.4.0-1.1 | Not reported | OPENSUSE-SU-2026:11470-1 | Not reported |
| Opensuse | python-pyOpenSSL | rpm | tumbleweed | 24.1.0-1.2 | Not reported | OPENSUSE-SU-2024:14154-1 | Not reported |
OpenFactory catalog packages
[openSUSE Tumbleweed]
- [python313-pyOpenSSL]Unknown
Source package: [python-pyOpenSSL]
Details (1)
26.4.0-1.1· noarch · tumbleweedUnknown · Fixed:
24.1.0-1.2, 26.4.0-1.1Version impact unknown
dsa · python-pyOpenSSL · opensuse · tumbleweed
- [python314-pyOpenSSL]Unknown
Source package: [python-pyOpenSSL]
Details (1)
26.4.0-1.1· noarch · tumbleweedUnknown · Fixed:
24.1.0-1.2, 26.4.0-1.1Version impact unknown
dsa · python-pyOpenSSL · opensuse · tumbleweed
[Debian 12 (Bookworm)]
- [python3-openssl]Fixed
Source package: [pyopenssl]
Details (2)
23.0.0-1· all · bookwormFixed · Fixed:
0.13-2.1dsa · pyopenssl · debian · bookworm; dsa · pyopenssl · debian · 12
23.0.0-1· all · bookwormFixed · Fixed:
0.13-2.1dsa · pyopenssl · debian · bookworm; dsa · pyopenssl · debian · 12
- [python-openssl-doc]Fixed
Source package: [pyopenssl]
Details (2)
23.0.0-1· all · bookwormFixed · Fixed:
0.13-2.1dsa · pyopenssl · debian · bookworm; dsa · pyopenssl · debian · 12
23.0.0-1· all · bookwormFixed · Fixed:
0.13-2.1dsa · pyopenssl · debian · bookworm; dsa · pyopenssl · debian · 12
[Debian 13 (Trixie)]
- [python3-openssl]Fixed
Source package: [pyopenssl]
Details (2)
25.0.0-1+deb13u1· all · trixieFixed · Fixed:
0.13-2.1dsa · pyopenssl · debian · 13
25.0.0-1+deb13u1· all · trixieFixed · Fixed:
0.13-2.1dsa · pyopenssl · debian · 13
- [python-openssl-doc]Fixed
Source package: [pyopenssl]
Details (2)
25.0.0-1+deb13u1· all · trixieFixed · Fixed:
0.13-2.1dsa · pyopenssl · debian · 13
25.0.0-1+deb13u1· all · trixieFixed · Fixed:
0.13-2.1dsa · pyopenssl · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11470-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2013-4314]
- [https://osv.dev/vulnerability/DSA-2763-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:14154-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11470-1]
- [https://security-tracker.debian.org/tracker/CVE-2013-4314]
- [https://security.access.redhat.com/data/csaf/v2/vex/2013/cve-2013-4314.json]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]