PT-2018-3637 · Squid+3 · Squid+4

Flozilla · Published 2018-10-29 · Updated 2024-06-15 · CVE-2018-19132

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Squid versions prior to 4.4

Description The issue is related to a memory leak that can be triggered via an SNMP packet when SNMP is enabled. This can lead to a denial of service. The vulnerability is associated with the lack of resource release after its valid expiration, which can be exploited by a remote attacker to cause a service disruption.

Recommendations For Squid versions prior to 4.4, consider disabling SNMP until a patch is available to prevent potential exploitation. Restrict access to SNMP functionality to minimize the risk of denial of service attacks.

Exploit

Fix

DoS

Missing Release of Resource after Effective Lifetime

Weakness Enumeration

CWE-772

Related Identifiers

ALT-PU-2018-2718

BDU:2021-01483

CVE-2018-19132

DLA-1596-1

DLA-2278-1

MGASA-2018-0458

OPENSUSE-SU-2018_3818-1

OPENSUSE-SU-2018_3825-1

OPENSUSE-SU-2024:11403-1

SUSE-SU-2018:3771-1

SUSE-SU-2018:3771-2

SUSE-SU-2018:3786-1

USN-4059-1

Affected Products

Alt Linux

Squid

Squid Cache

Suse

Ubuntu

References · 80

• 🔥 https://github.com/JonathanWilbur/CVE-2018-19131 · Exploit
• https://github.com/squid-cache/squid/pull/313 · Patch
• https://security-tracker.debian.org/tracker/CVE-2018-19132 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-19132 · Vendor Advisory
• https://usn.ubuntu.com/4059-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:11403-1 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-1596-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-19132 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-2278-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-19132 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2018-19132 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2018:3786-1 · Vendor Advisory
• http://squid-cache.org/Versions/v5/changesets/squid-5-644131ff1e00c1895d77561f561d29c104ba6b11.patch · Vendor Advisory
• https://advisories.mageia.org/MGASA-2018-0458.html · Security Note
• https://ubuntu.com/security/notices/USN-4059-1 · Vendor Advisory