CVE-2016-4556 — Improper Input Validation in Squid

CWE-20 — Improper Input Validation11 documents8 sources
Severity
7.5HIGHNVD
EPSS
56.9%
top 1.86%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Canonical Ubuntu LinuxOracle LinuxSquid-cache Squid
Timeline
PublishedMay 10
Latest updateMay 13

Description

Double free vulnerability in Esi.cc in Squid 3.x before 3.5.18 and 4.x before 4.0.10 allows remote servers to cause a denial of service (crash) via a crafted Edge Side Includes (ESI) response.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages2 packages

▶NVDsquid-cache/squid142 versions+141
▶NVDoracle/linux6, 7+1

Also affects: Ubuntu Linux 12.04, 14.04, 15.10, 16.04

Patches

Patch: www.squid-cache.org ↗Patch: www.squid-cache.org ↗

🔴Vulnerability Details

3
GHSA
GHSA-2xhq-835p-4pg5: Double free vulnerability in Esi↗2022-05-13
▶
OSV
CVE-2016-4556: Double free vulnerability in Esi↗2016-05-10
▶
CVEList
CVE-2016-4556: Double free vulnerability in Esi↗2016-05-10
▶

📋Vendor Advisories

3
Ubuntu
Squid vulnerabilities↗2016-06-09
▶
Red Hat
squid: SIGSEGV in ESIContext response handling↗2016-05-06
▶
Debian
CVE-2016-4556: squid - Double free vulnerability in Esi.cc in Squid 3.x before 3.5.18 and 4.x before 4....↗2016
▶

💬Community

4
Bugzilla
CVE-2016-4556 squid: SIGSEGV in ESIContext response handling↗2016-05-10
▶
Bugzilla
CVE-2016-4556 squid: SegFault from ESIInclude::Start [fedora-all]↗2016-05-10
▶
Bugzilla
CVE-2016-4553 CVE-2016-4554 CVE-2016-4555 CVE-2016-4556 squid: various flaws [fedora-all]↗2016-05-09
▶
Bugzilla
CVE-2016-4555 squid: SegFault from ESIInclude::Start↗2016-05-09
▶
CVE-2016-4556 — Improper Input Validation in Squid | cvebase