#VU47695 Buffer overflow in libproxy - CVE-2020-26154
Published: September 30, 2020 / Updated: October 16, 2020
Vulnerability identifier: #VU47695
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-26154
CWE-ID: CWE-120
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
libproxy
libproxy
Software vendor:
libproxy
libproxy
Description
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.
External links
- 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/