SB2023112839 - Red Hat Enterprise Linux 8.8 Extended Update Support update for c-ares

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Main Vulnerability Database SB2023112839

SB2023112839 - Red Hat Enterprise Linux 8.8 Extended Update Support update for c-ares

Published: November 28, 2023

Security Bulletin ID SB2023112839
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Partial DoS

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Buffer overflow (CVE-ID: CVE-2022-4904)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the config_sortlist() function. A local user can trigger memory corruption and perform a denial of service (DoS) attack.


2) Buffer Underwrite ('Buffer Underflow') (CVE-ID: CVE-2023-31130)

CWE-ID: CWE-124 - Buffer Underwrite ('Buffer Underflow')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a buffer underflow when using certain IPv6 addresses, such as 0::00:00:00/2". A local privileged user can trigger a boundary error and crash the service.


Remediation

Install update from vendor's website.

References