Security update for python-tornado6

Announcement ID: SUSE-SU-2026:20007-1
Release Date: 2025-12-22T13:30:40Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2025-67724 ( SUSE ): 5.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
  • CVE-2025-67724 ( SUSE ): 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
  • CVE-2025-67724 ( NVD ): 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
  • CVE-2025-67724 ( NVD ): 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
  • CVE-2025-67725 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  • CVE-2025-67725 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2025-67725 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2025-67726 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  • CVE-2025-67726 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2025-67726 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:
  • SUSE Linux Micro 6.1

An update that solves three vulnerabilities can now be installed.

Description:

This update for python-tornado6 fixes the following issues:

  • CVE-2025-67724: unescaped reason argument used in HTTP headers and in HTML default error pages can be used by attackers to launch header injection or XSS attacks (bsc#1254903).
  • CVE-2025-67725: quadratic complexity of string concatenation operations used by the HTTPHeaders.add method can lead to DoS when processing a maliciously crafted HTTP request (bsc#1254905).
  • CVE-2025-67726: quadratic complexity algorithm used in the _parseparam function of httputil.py can lead to DoS when processing maliciously crafted parameters in a Content-Disposition header (bsc#1254904).

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  • SUSE Linux Micro 6.1
    zypper in -t patch SUSE-SLE-Micro-6.1-356=1

Package List:

  • SUSE Linux Micro 6.1 (aarch64 ppc64le s390x x86_64)
    • python-tornado6-debugsource-6.4-slfo.1.1_3.1
    • python311-tornado6-6.4-slfo.1.1_3.1
    • python311-tornado6-debuginfo-6.4-slfo.1.1_3.1

References: