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ALSA-2024:0046 — Important: squid:4 security update

2026-10-02T21:38:29.170567+00:00

Affected: AlmaLinux:8: libecap, AlmaLinux:8: libecap-devel, AlmaLinux:8: squid

Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.

Security Fix(es):

* squid: Denial of Service in SSL Certificate validation (CVE-2023-46724) * squid: NULL pointer dereference in the gopher protocol code (CVE-2023-46728) * squid: Buffer over-read in the HTTP Message processing feature (CVE-2023-49285) * squid: Incorrect Check of Function Return Value In Helper Process management (CVE-2023-49286)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

bdu:2023-08580

2026-10-02T21:38:29.170635+00:00

bdu:2023-08580

certfr-2023-avi-0993 — De multiples vulnérabilités ont été découvertes dans Squid. Elles permettent à un attaquant de provoquer un déni de ser…

2026-10-02T21:38:29.170653+00:00

certfr-2023-avi-0993

EUVD-2026-216953

2026-10-02T21:38:29.170669+00:00

EUVD-2026-216953

fkie_cve-2023-49286

2026-10-02T21:38:29.170680+00:00

Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to an Incorrect Check of Function Return Value bug Squid is vulnerable to a Denial of Service attack against its Helper process management. This bug is fixed by Squid version 6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.

gsd-2023-49286

2026-10-02T21:38:29.170702+00:00

gsd-2023-49286

OESA-2023-1932 — squid security update

2026-10-02T21:38:29.170713+00:00

Affected: openEuler:20.03-LTS-SP1: squid, openEuler:20.03-LTS-SP3: squid, openEuler:22.03-LTS: squid, openEuler:22.03-LTS-SP1: squid, openEuler:22.03-LTS-SP2: squid

Squid is a high-performance proxy caching server. It handles all requests in a single, non-blocking, I/O-driven process and keeps meta data and implements negative caching of failed requests. Security Fix(es): Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a Buffer Overread bug Squid is vulnerable to a Denial of Service attack against Squid HTTP Message processing. This bug is fixed by Squid version 6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.(CVE-2023-49285) Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to an Incorrect Check of Function Return Value bug Squid is vulnerable to a Denial of Service attack against its Helper process management. This bug is fixed by Squid version 6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.(CVE-2023-49286)

openSUSE-SU-2024:13631-1 — squid-6.6-2.1 on GA media

2026-10-02T21:38:29.170745+00:00

squid-6.6-2.1 on GA media

RHSA-2024:0072 — Red Hat Security Advisory: squid security update

2026-10-02T21:38:29.170764+00:00

squid: DoS against HTTP and HTTPS squid: Denial of Service in SSL Certificate validation squid: NULL pointer dereference in the gopher protocol code squid: Buffer over-read in the HTTP Message processing feature squid: Incorrect Check of Function Return Value In Helper Process management squid-cache: Squid Buffer Overflow

SUSE-SU-2023:4724-1 — Security update for squid

2026-10-02T21:38:29.170787+00:00

Security update for squid

UBUNTU-CVE-2023-49286

2026-10-02T21:38:29.170801+00:00

Affected: Ubuntu:Pro:16.04:LTS: squid3, Ubuntu:Pro:18.04:LTS: squid3, Ubuntu:20.04:LTS: squid, Ubuntu:22.04:LTS: squid, Ubuntu:24.04:LTS: squid

WID-SEC-W-2023-3049 — Squid: Mehrere Schwachstellen ermöglichen Denial of Service

2026-10-02T21:38:29.170824+00:00

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Squid ausnutzen, um einen Denial of Service Angriff durchzuführen.