Out-of-bounds Write Affecting squid:4/libecap package, versions <0:1.0.1-2.module_el8.6.0+2741+01592ae8

Q: How to fix?

<p>Upgrade <code>AlmaLinux:8</code> <code>squid:4/libecap</code> to version 0:1.0.1-2.module_el8.6.0+2741+01592ae8 or higher.<br>This issue was patched in <code>ALSA-2020:4743</code>.</p>

Threat Intelligence

1.78% (89^th percentile)

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Snyk ID SNYK-ALMALINUX8-SQUID-5617078
published 28 May 2023
disclosed 3 Nov 2020

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Introduced: 3 Nov 2020

CVE-2019-18676 Open this link in a new tab CWE-787 Open this link in a new tab

How to fix?

Upgrade AlmaLinux:8 squid:4/libecap to version 0:1.0.1-2.module_el8.6.0+2741+01592ae8 or higher.
This issue was patched in ALSA-2020:4743.

NVD Description

Note: Versions mentioned in the description apply only to the upstream squid:4/libecap package and not the squid:4/libecap package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

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.

References

CVSS Scores

version 3.1

Attack Vector (AV)

Network
Attack Complexity (AC)

Low
Privileges Required (PR)

None
User Interaction (UI)

None

Scope (S)

Unchanged

Confidentiality (C)

None
Integrity (I)

None
Availability (A)

High