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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXAyOG0tMzRmNi05Njdx

PyOpenSSL Use-After-Free vulnerability

It was discovered that pyOpenSSL incorrectly handled memory when handling X509 objects. A remote attacker could use this issue to cause pyOpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code. This attack appears to be exploitable via Depends on the calling application and if it retains a reference to the memory. This vulnerability appears to have been fixed in 17.5.0.

Permalink: https://github.com/advisories/GHSA-p28m-34f6-967q
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXAyOG0tMzRmNi05Njdx
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 5 years ago
Updated: 7 months ago

CVSS Score: 8.1
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Identifiers: GHSA-p28m-34f6-967q, CVE-2018-1000807
References:

• https://nvd.nist.gov/vuln/detail/CVE-2018-1000807
• https://github.com/pyca/pyopenssl/pull/723
• https://access.redhat.com/errata/RHSA-2019:0085
• https://github.com/advisories/GHSA-p28m-34f6-967q
• https://usn.ubuntu.com/3813-1/
• http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00014.html
• https://github.com/pyca/pyopenssl/commit/e73818600065821d588af475b024f4eb518c3509

Repository: https://github.com/pyca/pyopenssl
Blast Radius: 33.3

Affected Packages