Improper input validation in Squid-Cache Squid
CVE-2016-2390
The FwdState::connectedToPeer method in FwdState.cc in Squid before 3.5.14 and 4.0.x before 4.0.6 does not properly handle SSL handshake errors when built with the --with-openssl option, which allows remote attackers to cause a denial of service (application crash) via a plaintext HTTP message.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.256 (97.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Squid-cache Squid — versions 4.0.4, 4.0.5
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
- cve@mitre.org (vendor-advisory, x_refsource_SUSE)
- cve@mitre.org (vdb-entry, x_refsource_SECTRACK)
- cve@mitre.org (Vendor Advisory, mailing-list, x_refsource_MLIST)
- cve@mitre.org (Vendor Advisory, mailing-list, x_refsource_MLIST)
- cve@mitre.org (vendor-advisory, x_refsource_SUSE)
- cve@mitre.org (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2016-2390?
- CVE-2016-2390 is a medium-severity vulnerability in Squid-Cache Squid, classified under Improper Input Validation. CVSS score: 5.9/10. Published 2016-04-19.
- How severe is CVE-2016-2390?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2016-2390 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.