Описание
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.
Ссылки
- https://nvd.nist.gov/vuln/detail/CVE-2018-1000808
- https://github.com/pyca/pyopenssl/pull/723
- https://github.com/pyca/pyopenssl/commit/e73818600065821d588af475b024f4eb518c3509
- https://access.redhat.com/errata/RHSA-2019:0085
- https://github.com/advisories/GHSA-2rcm-phc9-3945
- https://github.com/pypa/advisory-database/tree/main/vulns/pyopenssl/PYSEC-2018-24.yaml
- https://usn.ubuntu.com/3813-1
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00014.html
Пакеты
pyopenssl
< 17.5.0
17.5.0
EPSS
8.2 High
CVSS4
5.9 Medium
CVSS3
CVE ID
Дефекты
Связанные уязвимости
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 can result in Denial of service if memory runs low or is exhausted. This attack appear to be exploitable via Depends upon calling application, however it could be as simple as initiating a TLS connection. Anything 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.
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 can result in Denial of service if memory runs low or is exhausted. This attack appear to be exploitable via Depends upon calling application, however it could be as simple as initiating a TLS connection. Anything 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.
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 can result in Denial of service if memory runs low or is exhausted. This attack appear to be exploitable via Depends upon calling application, however it could be as simple as initiating a TLS connection. Anything 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.
Python Cryptographic Authority pyopenssl version Before 17.5.0 contain ...
Security update for python-cryptography, python-pyOpenSSL
EPSS
8.2 High
CVSS4
5.9 Medium
CVSS3