Vulnerability in Libproxy Project
CVE-2020-25219
url::recvline in url.cpp in libproxy 0.4.x through 0.4.15 allows a remote HTTP server to trigger uncontrolled recursion via a response composed of an infinite stream that lacks a newline character. This leads to stack exhaustion.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.044 (90.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.044 · newest: 0.044 · change: 0.000
Affected products
- Libproxy Project
- Canonical Ubuntu Linux — versions 16.04, 18.04, 20.04
- Debian Linux — versions 9.0, 10.0
- Fedoraproject Fedora — versions 31, 32, 33
- openSUSE Leap — versions 15.1, 15.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/libproxy/libproxy/issues/134 (Exploit, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/09/msg00012.html (mailing-list, Third Party Advisory)
- usn.ubuntu.com/4514-1/ (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00030.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00033.html (vendor-advisory, Mailing List, Third Party Advisory)
- www.debian.org/security/2020/dsa-4800 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-25219?
- CVE-2020-25219 is a high-severity vulnerability in Libproxy Project, classified under Uncontrolled Recursion. CVSS score: 7.5/10. Published 2020-09-09.
- How severe is CVE-2020-25219?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-25219 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.