SB2026011935 - SUSE update for the Linux Kernel RT (Live Patch 3 for SUSE Linux Enterprise 15 SP7)
Published: January 19, 2026 Updated: March 6, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2023-53676)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the lio_target_nacl_info_show() function in drivers/target/iscsi/iscsi_target_configfs.c. A local user can escalate privileges on the system.
2) Use of uninitialized resource (CVE-ID: CVE-2025-38608)
CWE-ID: CWE-908 - Use of Uninitialized Resource
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to use of uninitialized resource within the sk_psock_msg_verdict() function in net/tls/tls_sw.c. A local user can perform a denial of service (DoS) attack.
3) Memory leak (CVE-ID: CVE-2025-39682)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the decrypt_skb() and tls_sw_recvmsg() functions in net/tls/tls_sw.c. A local user can perform a denial of service (DoS) attack.
4) Resource management error (CVE-ID: CVE-2025-40204)
CWE-ID: CWE-399 - Resource Management Errors
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to resource management error within the sctp_sf_authenticate() function in net/sctp/sm_statefuns.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.