Security update for screen

Announcement ID:	SUSE-SU-2025:02016-1
Release Date:	2025-06-19T07:14:49Z
Rating:	moderate
References:	bsc#1242269
Cross-References:	CVE-2025-46802
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:	Basesystem Module 15-SP6 Basesystem Module 15-SP7 openSUSE Leap 15.6 SUSE Linux Enterprise Desktop 15 SP6 SUSE Linux Enterprise Desktop 15 SP7 SUSE Linux Enterprise Micro 5.3 SUSE Linux Enterprise Micro 5.4 SUSE Linux Enterprise Micro 5.5 SUSE Linux Enterprise Micro for Rancher 5.3 SUSE Linux Enterprise Micro for Rancher 5.4 SUSE Linux Enterprise Real Time 15 SP6 SUSE Linux Enterprise Real Time 15 SP7 SUSE Linux Enterprise Server 15 SP6 SUSE Linux Enterprise Server 15 SP7 SUSE Linux Enterprise Server for SAP Applications 15 SP6 SUSE Linux Enterprise Server for SAP Applications 15 SP7

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).
• Fix resume after suspend in multi-user mode.

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:

• openSUSE Leap 15.6
  zypper in -t patch openSUSE-SLE-15.6-2025-2016=1
• SUSE Linux Enterprise Micro for Rancher 5.3
  zypper in -t patch SUSE-SLE-Micro-5.3-2025-2016=1
• SUSE Linux Enterprise Micro 5.3
  zypper in -t patch SUSE-SLE-Micro-5.3-2025-2016=1
• SUSE Linux Enterprise Micro for Rancher 5.4
  zypper in -t patch SUSE-SLE-Micro-5.4-2025-2016=1
• SUSE Linux Enterprise Micro 5.4
  zypper in -t patch SUSE-SLE-Micro-5.4-2025-2016=1
• SUSE Linux Enterprise Micro 5.5
  zypper in -t patch SUSE-SLE-Micro-5.5-2025-2016=1
• Basesystem Module 15-SP6
  zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP6-2025-2016=1
• Basesystem Module 15-SP7
  zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2025-2016=1

Package List:

• openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64)
  • screen-4.6.2-150000.5.8.1
  • screen-debuginfo-4.6.2-150000.5.8.1
  • screen-debugsource-4.6.2-150000.5.8.1
• SUSE Linux Enterprise Micro for Rancher 5.3 (aarch64 s390x x86_64)
  • screen-4.6.2-150000.5.8.1
  • screen-debuginfo-4.6.2-150000.5.8.1
  • screen-debugsource-4.6.2-150000.5.8.1
• SUSE Linux Enterprise Micro 5.3 (aarch64 s390x x86_64)
  • screen-4.6.2-150000.5.8.1
  • screen-debuginfo-4.6.2-150000.5.8.1
  • screen-debugsource-4.6.2-150000.5.8.1
• SUSE Linux Enterprise Micro for Rancher 5.4 (aarch64 s390x x86_64)
  • screen-4.6.2-150000.5.8.1
  • screen-debuginfo-4.6.2-150000.5.8.1
  • screen-debugsource-4.6.2-150000.5.8.1
• SUSE Linux Enterprise Micro 5.4 (aarch64 s390x x86_64)
  • screen-4.6.2-150000.5.8.1
  • screen-debuginfo-4.6.2-150000.5.8.1
  • screen-debugsource-4.6.2-150000.5.8.1
• SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64)
  • screen-4.6.2-150000.5.8.1
  • screen-debuginfo-4.6.2-150000.5.8.1
  • screen-debugsource-4.6.2-150000.5.8.1
• Basesystem Module 15-SP6 (aarch64 ppc64le s390x x86_64)
  • screen-4.6.2-150000.5.8.1
  • screen-debuginfo-4.6.2-150000.5.8.1
  • screen-debugsource-4.6.2-150000.5.8.1
• Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
  • screen-4.6.2-150000.5.8.1
  • screen-debuginfo-4.6.2-150000.5.8.1
  • screen-debugsource-4.6.2-150000.5.8.1

References:

• https://www.suse.com/security/cve/CVE-2025-46802.html
• https://bugzilla.suse.com/show_bug.cgi?id=1242269