SUSE-SU-2026:1066-1: important: Security update for ruby2.5

[SLE-SECURITY-UPDATES]

# Security update for ruby2.5

Announcement ID: SUSE-SU-2026:1066-1  
Release Date: 2026-03-26T10:38:47Z  
Rating: important  
References:

  * bsc#1232440
  * bsc#1232441
  * bsc#1250016
  * bsc#1259239

  
Cross-References:

  * CVE-2024-49761
  * CVE-2025-58767
  * CVE-2026-27820

  
CVSS scores:

  * CVE-2024-49761 ( SUSE ):  5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2024-49761 ( NVD ):  6.6
    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/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2024-49761 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-58767 ( SUSE ):  5.1
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2025-58767 ( SUSE ):  2.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2025-58767 ( NVD ):  1.2
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2025-58767 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-27820 ( SUSE ):  7.7
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-27820 ( SUSE ):  8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

  
Affected Products:

  * Basesystem Module 15-SP7
  * SUSE Linux Enterprise Desktop 15 SP7
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7

  
  
An update that solves three vulnerabilities and has one security fix can now be
installed.

## Description:

This update for ruby2.5 fixes the following issues:

  * CVE-2024-49761: ReDoS vulnerability in REXML gem (bsc#1232440 bsc#1232441).
  * CVE-2025-58767: denial of service when parsing XML containing multiple XML
    declarations (bsc#1250016).
  * CVE-2026-27820: insufficient checks in `zstream_buffer_ungets` can lead to a
    buffer overflow (bsc#1259239).

## 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:

  * Basesystem Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-1066=1

## Package List:

  * Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * ruby2.5-debuginfo-2.5.9-150700.24.6.1
    * ruby2.5-2.5.9-150700.24.6.1
    * libruby2_5-2_5-2.5.9-150700.24.6.1
    * ruby2.5-debugsource-2.5.9-150700.24.6.1
    * ruby2.5-devel-2.5.9-150700.24.6.1
    * ruby2.5-devel-extra-2.5.9-150700.24.6.1
    * libruby2_5-2_5-debuginfo-2.5.9-150700.24.6.1
    * ruby2.5-stdlib-2.5.9-150700.24.6.1
    * ruby2.5-stdlib-debuginfo-2.5.9-150700.24.6.1

## References:

  * https://www.suse.com/security/cve/CVE-2024-49761.html
  * https://www.suse.com/security/cve/CVE-2025-58767.html
  * https://www.suse.com/security/cve/CVE-2026-27820.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1232440
  * https://bugzilla.suse.com/show_bug.cgi?id=1232441
  * https://bugzilla.suse.com/show_bug.cgi?id=1250016
  * https://bugzilla.suse.com/show_bug.cgi?id=1259239

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