OESA-2025-1858

See a problem?
Please try reporting it to the source first.
Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2025-1858
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2025-1858.json
JSON Data
https://api.osv.dev/v1/vulns/OESA-2025-1858
Upstream
Published
2025-07-18T14:49:36Z
Modified
2025-09-03T06:31:37.010758Z
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.

Security Fix(es):

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. 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)

Database specific 
{
    "severity": "Medium"
}
References

Affected packages

openEuler:24.03-LTS-SP2 / python-pycares

Package

Name
python-pycares
Purl
pkg:rpm/openEuler/python-pycares&distro=openEuler-24.03-LTS-SP2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.9.0-1.oe2403sp2

Ecosystem specific 

{
    "src": [
        "python-pycares-4.9.0-1.oe2403sp2.src.rpm"
    ],
    "aarch64": [
        "python-pycares-debuginfo-4.9.0-1.oe2403sp2.aarch64.rpm",
        "python-pycares-debugsource-4.9.0-1.oe2403sp2.aarch64.rpm",
        "python-pycares-help-4.9.0-1.oe2403sp2.aarch64.rpm",
        "python3-pycares-4.9.0-1.oe2403sp2.aarch64.rpm"
    ],
    "x86_64": [
        "python-pycares-debuginfo-4.9.0-1.oe2403sp2.x86_64.rpm",
        "python-pycares-debugsource-4.9.0-1.oe2403sp2.x86_64.rpm",
        "python-pycares-help-4.9.0-1.oe2403sp2.x86_64.rpm",
        "python3-pycares-4.9.0-1.oe2403sp2.x86_64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2025-1858.json"