Pyopenssl Incorrect Memory Management
It was discovered that pyOpenSSL incorrectly handled memory when performing operations on a PKCS #12 store. A remote attacker could possibly use this issue to cause pyOpenSSL to consume resources, resulting in a denial of service. This attack appear to be exploitable via Depends upon calling application, however it could be as simple as initiating a TLS connection that would cause the calling application to reload certificates from a PKCS #12 store. This vulnerability appears to have been fixed in 17.5.0.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2018-1000808US | medium5.9 | — | ||
Python Cryptographic Authority pyopenssl version Before 17.5.0 contains a CWE - 401 : Failure to Release Memory Before Removing Last Reference vulnerability in PKCS #12 Store that… | ||||
references
External citations — patches, advisories, analysis.
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00014.htmlWEB
- https://access.redhat.com/errata/RHSA-2019:0085WEB
- https://github.com/advisories/GHSA-2rcm-phc9-3945ADVISORY
- https://github.com/pyca/pyopensslPACKAGE
- https://github.com/pyca/pyopenssl/commit/e73818600065821d588af475b024f4eb518c3509WEB
- https://github.com/pyca/pyopenssl/pull/723WEB
- https://github.com/pypa/advisory-database/tree/main/vulns/pyopenssl/PYSEC-2018-24.yamlWEB
- https://nvd.nist.gov/vuln/detail/CVE-2018-1000808ADVISORY
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