Buffer overflow in Squid-Cache Squid
CVE-2020-8450
An issue was discovered in Squid before 4.10. Due to incorrect buffer management, a remote client can cause a buffer overflow in a Squid instance acting as a reverse proxy.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.718 (99.4th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.718 · newest: 0.718 · change: 0.000
Affected products
- Squid-Cache Squid
- Canonical Ubuntu Linux — versions 16.04, 18.04, 19.10
- Debian Linux — versions 9.0, 10.0
- Fedoraproject Fedora — versions 30, 31
- openSUSE Leap — versions 15.1
Weakness classification (CWE)
References
- www.squid-cache.org/Advisories/SQUID-2020_1.txt (Vendor Advisory)
- www.squid-cache.org/Versions/v4/changesets/squid-4-d8e4715992d0e530871519549add… (Patch, Vendor Advisory)
- www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-8e657e835965c3a011375f… (Patch, Vendor Advisory)
- www.squid-cache.org/Versions/v4/changesets/squid-4-b3a0719affab099c684f1cd62b79… (Patch, Vendor Advisory)
- www.squid-cache.org/Versions/v4/changesets/SQUID-2020_1.patch (Patch, Vendor Advisory)
- www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2020_1.patch (Patch, Vendor Advisory)
- usn.ubuntu.com/4289-1/ (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-03/msg00012.html (vendor-advisory, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202003-34 (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2020-8450?
- CVE-2020-8450 is a high-severity vulnerability in Squid-Cache Squid, classified under Incorrect Calculation of Buffer Size. CVSS score: 7.3/10. Published 2020-02-04.
- How severe is CVE-2020-8450?
- High severity. CVSS v3 base score is 7.3 out of 10.