{"id":"OESA-2025-1812","summary":"python-pycares security update","details":"pycares is a Python module which provides an interface to c-ares.c-ares is a C library that performs DNS requests and name resolutions asynchronously.\r\n\r\nSecurity Fix(es):\n\npycares is a Python module which provides an interface to c-ares. c-ares is a C library that performs DNS requests and name resolutions asynchronously. Prior to version 4.9.0, pycares is vulnerable to a use-after-free condition that occurs when a Channel object is garbage collected while DNS queries are still pending. This results in a fatal Python error and interpreter crash. The vulnerability has been fixed in pycares 4.9.0 by implementing a safe channel destruction mechanism.(CVE-2025-48945)","modified":"2025-09-03T06:31:36.889996Z","published":"2025-07-11T12:24:23Z","upstream":["CVE-2025-48945"],"database_specific":{"severity":"Medium"},"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1812"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-48945"}],"affected":[{"package":{"name":"python-pycares","ecosystem":"openEuler:22.03-LTS-SP4","purl":"pkg:rpm/openEuler/python-pycares&distro=openEuler-22.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-1.oe2203sp4"}]}],"ecosystem_specific":{"x86_64":["python-pycares-debuginfo-4.9.0-1.oe2203sp4.x86_64.rpm","python-pycares-debugsource-4.9.0-1.oe2203sp4.x86_64.rpm","python-pycares-help-4.9.0-1.oe2203sp4.x86_64.rpm","python3-pycares-4.9.0-1.oe2203sp4.x86_64.rpm"],"aarch64":["python-pycares-debuginfo-4.9.0-1.oe2203sp4.aarch64.rpm","python-pycares-debugsource-4.9.0-1.oe2203sp4.aarch64.rpm","python-pycares-help-4.9.0-1.oe2203sp4.aarch64.rpm","python3-pycares-4.9.0-1.oe2203sp4.aarch64.rpm"],"src":["python-pycares-4.9.0-1.oe2203sp4.src.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2025-1812.json"}}],"schema_version":"1.7.3"}