9.8

CVE-2025-54574

Squid's URN Handling can lead to Buffer Overflow

Squid is a caching proxy for the Web. In versions 6.3 and below, Squid is vulnerable to a heap buffer overflow and possible remote code execution attack when processing URN due to incorrect buffer management. This has been fixed in version 6.4. To work around this issue, disable URN access permissions.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Squid-cache ≫ Squid Version < 6.4
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 22.74% 0.974
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
security-advisories@github.com 9.3 3.9 4.7
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:H
CWE-122 Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

https://github.com/squid-cache/squid/security/advisories/GHSA-w4gv-vw3f-29g3
Patch
Vendor Advisory
Mitigation
https://github.com/squid-cache/squid/commit/a27bf4b84da23594150c7a86a23435df0b35b988
Patch
https://github.com/squid-cache/squid/releases/tag/SQUID_6_4
Release Notes
https://lists.debian.org/debian-lts-announce/2025/09/msg00027.html
http://www.openwall.com/lists/oss-security/2025/11/05/5