SB2026051341 - Anolis OS update for cups

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Main Vulnerability Database SB2026051341

SB2026051341 - Anolis OS update for cups

Published: May 13, 2026

Security Bulletin ID SB2026051341
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) Incorrect authorization (CVE-ID: CVE-2026-27447)

CWE-ID: CWE-863 - Incorrect Authorization

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


The vulnerability allows a remote user to gain unauthorized access to restricted operations.

The vulnerability exists due to improper access control in the CUPS daemon (cupsd) when performing authorization checks. A remote privileged user can exploit case-insensitive username comparison during group-member lookup to gain unauthorized access to restricted operations.

User interaction is required to exploit this vulnerability.


2) Integer underflow (CVE-ID: CVE-2026-39314)

CWE-ID: CWE-191 - Integer 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 cause a denial of service.

The vulnerability exists due to integer underflow in _ppdCreateFromIPP() in cups/ppd-cache.c when processing a negative job-password-supported IPP attribute. A local user can supply a crafted IPP response to cause a denial of service.

Exploitation involves creating a local printer that points to a fake IPP printer on localhost, causing the cupsd root process to crash.


3) Out-of-bounds read (CVE-ID: CVE-2026-41079)

CWE-ID: CWE-125 - Out-of-bounds read

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


The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to out-of-bounds read in the CUPS SNMP backend when processing crafted SNMP responses during supply-level polling. A remote attacker can send a specially crafted SNMP response to disclose sensitive information.

The leaked memory is converted from UTF-16 to UTF-8 and becomes visible to authenticated users via IPP Get-Printer-Attributes responses and the CUPS web interface. Exploitation requires an SNMP-discovered printer on the same LAN segment.


Remediation

Install update from vendor's website.

References