Summary
USN-7886-1 fixed vulnerabilities in Python. This update provides the
corresponding updates for python3.13 in Ubuntu 25.04 and Ubuntu 25.10.
Original advisory details:
It was discovered that Python inefficiently handled expanding system
environment variables. An attacker could possibly use this issue to cause
Python to consume excessive resources, leading to a denial of service.
(CVE-2025-6075)
Caleb Brown discovered that Python incorrectly handled the ZIP64 End of
Central Directory (EOCD) Locator record offset value. An attacker could
possibly use this issue to obfuscate malicious content. (CVE-2025-8291)
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 25.10 | python3.13 | 3.13.7-1ubuntu0.1 |
Vulnerabilities 2
-
Medium 4.3
ZIP64 End of Central Directory (EOCD) Locator record offset not checked
The 'zipfile' module would not check the validity of the ZIP64 End of Central Directory (EOCD) Locator record offset value would not be used to locate the ZIP64 EOCD record, instead the ZIP64 EOCD record would be assumed to be the previous record in the ZIP a…
-
Low 1.8
Quadratic complexity in os.path.expandvars() with user-controlled template
If the value passed to os.path.expandvars() is user-controlled a performance degradation is possible when expanding environment variables.