Buffer overflow in Libproxy_project Libproxy
CVE-2020-26154
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.
Vulnerability class: Buffer Overflow
EPSS: 0.036 (88.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Libproxy_project Libproxy
- Debian Debian_linux — versions 9.0, 10.0
- Fedoraproject Fedora — versions 32, 33
- Opensuse Leap — versions 15.1, 15.2
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC, Issue Tracking)
- cve@mitre.org (x_refsource_FEDORA, vendor-advisory)
- cve@mitre.org (x_refsource_FEDORA, vendor-advisory)
- cve@mitre.org (vendor-advisory, Third Party Advisory, Issue Tracking, x_refsource_SUSE)
- cve@mitre.org (vendor-advisory, Third Party Advisory, Issue Tracking, x_refsource_SUSE)
- cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
Frequently asked questions
- What is CVE-2020-26154?
- CVE-2020-26154 is a critical-severity vulnerability in Libproxy_project Libproxy, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2020-09-30.
- How severe is CVE-2020-26154?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2020-26154 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.