CVE-2023-46724 — Out-of-bounds Read in Squid

CWE-125 — Out-of-bounds ReadCWE-129 — Improper Validation of Array IndexCWE-786 — Access of Memory Location Before Start of BufferCWE-823 — Use of Out-of-range Pointer OffsetCWE-1285 — Improper Validation of Specified Index, Position, or Offset in InputCWE-295 — Improper Certificate Validation7 documents6 sources
Severity
7.5HIGHNVD
CNA8.6
EPSS
0.4%
top 40.79%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
SquidSquid-cache Squid
Timeline
PublishedNov 1
Latest updateNov 21

Description

Squid is a caching proxy for the Web. Due to an Improper Validation of Specified Index bug, Squid versions 3.3.0.1 through 5.9 and 6.0 prior to 6.4 compiled using `--with-openssl` are vulnerable to a Denial of Service attack against SSL Certificate validation. This problem allows a remote server to perform Denial of Service against Squid Proxy by initiating a TLS Handshake with a specially crafted SSL Certificate in a server certificate chain. This attack is limited to HTTPS and SSL-Bump. This b…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages4 packages

▶NVDsquid-cache/squid3.3.0.1 — 6.4
▶Debiansquid/squid< 4.13-10+deb11u3+3
▶Ubuntusquid/squid< 4.10-1ubuntu1.8+1
▶CVEListV5squid-cache/squid>= 3.3.0.1, < 6.4

Patches

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

🔴Vulnerability Details

3
OSV
squid vulnerabilities↗2023-11-21
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OSV
CVE-2023-46724: Squid is a caching proxy for the Web↗2023-11-01
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CVEList
SQUID-2023:4 Denial of Service in SSL Certificate validation↗2023-11-01
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📋Vendor Advisories

3
Ubuntu
Squid vulnerabilities↗2023-11-21
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Red Hat
squid: Denial of Service in SSL Certificate validation↗2023-11-01
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Debian
CVE-2023-46724: squid - Squid is a caching proxy for the Web. Due to an Improper Validation of Specified...↗2023
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