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OpenAdvisories
Unscored Public exploit CVE-2015-1793 EUVD-2015-1919GHSA-4j29-v246-6w5w

The X509_verify_cert function in crypto/x509/x509_vfy.c in OpenSSL 1.0.1n, 1.0.1o, 1.0.2b, and 1.0.2c does not properly process X.509 Basic…

Published Jul 9, 2015 · Updated Aug 6, 2024 · Assigned by redhat

Package: openssl Ecosystem: Debian

Description

The X509_verify_cert function in crypto/x509/x509_vfy.c in OpenSSL 1.0.1n, 1.0.1o, 1.0.2b, and 1.0.2c does not properly process X.509 Basic Constraints cA values during identification of alternative certificate chains, which allows remote attackers to spoof a Certification Authority role and trigger unintended certificate verifications via a valid leaf certificate.

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Debian

Security tracker ↗
ReleasePackageFixed inAdvisory
Debian 14 openssl 1.0.2d-1 —
Debian 13 openssl 1.0.2d-1 —
Debian 12 openssl 1.0.2d-1 —

SUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
SLES 11 SP4 mysql 5.5.46-0.14.1 SUSE-SU-2015:2303-1
SLES 11 SP3 mysql 5.5.46-0.14.1 SUSE-SU-2015:2303-1
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 11 SP4 mysql 5.5.46-0.14.1 SUSE-SU-2015:2303-1
SLES for SAP 11 SP3 mysql 5.5.46-0.14.1 SUSE-SU-2015:2303-1

openSUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed openssl-1_1 1.1.1l-1.2 openSUSE-SU-2024:11127-1

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Metasploit 1 module

Exploit-DB 1

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Advisories 3

References