Security update for screen

Announcement ID: SUSE-SU-2025:02186-1
Release Date: 2025-07-01T11:48:02Z
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2025-46802 ( SUSE ): 5.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  • CVE-2025-46802 ( SUSE ): 6.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N
  • CVE-2025-46802 ( NVD ): 5.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/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-2025-46802 ( NVD ): 6.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N
Affected Products:
  • SUSE Linux Enterprise Server 12 SP5
  • SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  • SUSE Linux Enterprise Server for SAP Applications 12 SP5

An update that solves one vulnerability can now be installed.

Description:

This update for screen fixes the following issues:

Security issues fixed:

  • CVE-2025-46802: temporary chmod of a user's TTY to mode 0666 when attempting to attach to a multi-user session allows for TTY hijacking (bsc#1242269).

Other issues fixed:

  • Use TTY file descriptor passing after a suspend (MSG_CONT).

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 Enterprise Server 12 SP5 LTSS Extended Security
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2025-2186=1

Package List:

  • SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    • screen-4.0.4-23.9.1
    • screen-debuginfo-4.0.4-23.9.1
    • screen-debugsource-4.0.4-23.9.1

References: