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NULL Pointer Dereference Affecting squid package, versions <7:5.5-6.el9_3.5

Severity

 Recommended
0.0
high
0
10

Based on AlmaLinux security rating

    Threat Intelligence

    EPSS
    0.45% (76th percentile)

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  • Snyk ID SNYK-ALMALINUX9-SQUID-6146131
  • published 8 Jan 2024
  • disclosed 8 Jan 2024
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Introduced: 8 Jan 2024

CVE-2023-46728 Open this link in a new tab
CWE-476 Open this link in a new tab

How to fix?

Upgrade AlmaLinux:9 squid to version 7:5.5-6.el9_3.5 or higher.
This issue was patched in ALSA-2024:0071.

NVD Description

Note: Versions mentioned in the description apply only to the upstream squid package and not the squid package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a NULL pointer dereference bug Squid is vulnerable to a Denial of Service attack against Squid's Gopher gateway. The gopher protocol is always available and enabled in Squid prior to Squid 6.0.1. Responses triggering this bug are possible to be received from any gopher server, even those without malicious intent. Gopher support has been removed in Squid version 6.0.1. Users are advised to upgrade. Users unable to upgrade should reject all gopher URL requests.

CVSS Scores

version 3.1
Expand this section

NVD

7.5 high
  • 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
Expand this section

Red Hat

7.5 high
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SUSE

7.5 high