Buffer overflow in Squid-Cache Squid
CVE-2016-3948
Squid 3.x before 3.5.16 and 4.x before 4.0.8 improperly perform bounds checking, which allows remote attackers to cause a denial of service via a crafted HTTP response, related to Vary headers.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.353 (98.4th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.353 · newest: 0.353 · change: 0.000
Affected products
- Squid-Cache Squid — versions 3.0, 3.0.stable1, 3.0.stable2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- usn.ubuntu.com/3557-1/ (vendor-advisory)
- security.gentoo.org/glsa/201607-01 (vendor-advisory)
- www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-14016.patch (Patch)
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html (vendor-advisory)
- rhn.redhat.com/errata/RHSA-2016-2600.html (vendor-advisory)
- www.securitytracker.com/id/1035458 (vdb-entry)
- lists.opensuse.org/opensuse-updates/2016-08/msg00069.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html (vendor-advisory)
- www.squid-cache.org/Advisories/SQUID-2016_4.txt (Vendor Advisory)
Frequently asked questions
- What is CVE-2016-3948?
- CVE-2016-3948 is a high-severity vulnerability in Squid-Cache Squid, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2016-04-07.
- How severe is CVE-2016-3948?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2016-3948 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.