SB20200930107 - Buffer overflow in libproxy
Published: September 30, 2020 Updated: October 16, 2020
Security Bulletin ID
SB20200930107
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2020-26154)
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
url.cpp in libproxy through 0.4.15 is prone to a buffer overflow when PAC is enabled, as demonstrated by a large PAC file that is delivered without a Content-length header.
Remediation
Install update from vendor's website.
References
- https://bugs.debian.org/968366
- https://github.com/libproxy/libproxy/pull/126
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3BID3HVHAF6DA3YJOFDBSAZSMR3ODNIW/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WZVZXTFMFTSML3J6OOCDBDYH474BRJSW/