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CVE-2019-18676

Public on 2019-11-26
Modified on 2024-01-18
Description

An issue was discovered in Squid 3.x and 4.x through 4.8. Due to incorrect input validation, there is a heap-based buffer overflow that can result in Denial of Service to all clients using the proxy. Severity is high due to this vulnerability occurring before normal security checks; any remote client that can reach the proxy port can trivially perform the attack via a crafted URI scheme.

Severity
Important
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CVSS v3 Base Score
7.5
See breakdown
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 squid 2023-05-25 17:41 ALAS-2023-1757
Amazon Linux 2 - Core squid 2023-05-25 17:41 ALAS2-2023-2065
Amazon Linux 2 - Squid4 Extra squid 2023-08-21 20:59 ALAS2SQUID4-2023-007

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD CVSSv2 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
NVD CVSSv3 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H