CVE-2021-28662 — Improper Encoding or Escaping of Output in Squid

CWE-116 — Improper Encoding or Escaping of OutputCWE-20 — Improper Input Validation6 documents6 sources
Severity
6.5MEDIUMNVD
EPSS
13.6%
top 5.74%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
SquidSquid-cache SquidDebian Linux+1 more
Timeline
PublishedMay 27
Latest updateJun 3

Description

An issue was discovered in Squid 4.x before 4.15 and 5.x before 5.0.6. If a remote server sends a certain response header over HTTP or HTTPS, there is a denial of service. This header can plausibly occur in benign network traffic.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages2 packages

▶NVDsquid-cache/squid4.0.1 — 4.15+1
▶Debiansquid/squid< 4.13-10+3

Also affects: Debian Linux 10.0, Fedora 33, 34

Patches

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

🔴Vulnerability Details

2
OSV
CVE-2021-28662: An issue was discovered in Squid 4↗2021-05-27
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CVEList
CVE-2021-28662: An issue was discovered in Squid 4↗2021-05-27
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📋Vendor Advisories

3
Ubuntu
Squid vulnerabilities↗2021-06-03
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Red Hat
squid: denial of service in HTTP response processing↗2021-05-10
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Debian
CVE-2021-28662: squid - An issue was discovered in Squid 4.x before 4.15 and 5.x before 5.0.6. If a remo...↗2021
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CVE-2021-28662 — Squid-cache Squid vulnerability | cvebase