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SUSE-SU-2023:4028-1 Not scored

Security update for the Linux Kernel

The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2023-1077: Fixed a type confusion in pick_next_rt_entity() that could cause memory corruption (bsc#1208600). - CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc#1215115). - CVE-2023-1192: Fixed use-after-free in cifs_demultiplex_thread() (bsc#1208995). - CVE-2023-20588: Fixed a potential data leak that could be triggered through a side channel when division by zero occurred on some AMD processors (bsc#1213927). - CVE-2023-4459: Fixed a NULL pointer dereference flaw in the vmxnet3 driver that may have allowed a local attacker with user privileges to cause a denial of service (bsc#1214451). - CVE-2023-3772: Fixed a flaw in the XFRM subsystem that may have allowed a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer leading to denial of service (bsc#1213666). - CVE-2023-2007: Removed the dpt_i2o driver due to security issues (bsc#1210448, jsc#PED-4579). - CVE-2023-4385: Fixed a NULL pointer dereference flaw in dbFree that may have allowed a local attacker to crash the system due to a missing sanity check (bsc#1214348).

Exploit probability Not scored
Published October 10, 2023
Required by Not available
Last source change February 4, 2026

02 / AFFECTED SOFTWARE

Affected packages

SUSE:Linux Enterprise Server 11 SP4 LTSS EXTREME CORE kernel-default
SUSE:Linux Enterprise Server 11 SP4 LTSS EXTREME CORE kernel-ec2
SUSE:Linux Enterprise Server 11 SP4 LTSS EXTREME CORE kernel-source
SUSE:Linux Enterprise Server 11 SP4 LTSS EXTREME CORE kernel-syms
SUSE:Linux Enterprise Server 11 SP4 LTSS EXTREME CORE kernel-trace
SUSE:Linux Enterprise Server 11 SP4 LTSS EXTREME CORE kernel-xen

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities SUSE-SU-2023:4028-1

The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2023-1077: Fixed a type confusion in pick_next_rt_entity() that could cause memory corruption (bsc#1208600). - CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc#1215115). - CVE-2023-1192: Fixed use-after-free in cifs_demultiplex_thread() (bsc#1208995). - CVE-2023-20588: Fixed a potential data leak that could be triggered through a side channel when division by zero occurred on some AMD processors (bsc#1213927). - CVE-2023-4459: Fixed a NULL pointer dereference flaw in the vmxnet3 driver that may have allowed a local attacker with user privileges to cause a denial of service (bsc#1214451). - CVE-2023-3772: Fixed a flaw in the XFRM subsystem that may have allowed a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer leading to denial of service (bsc#1213666). - CVE-2023-2007: Removed the dpt_i2o driver due to security issues (bsc#1210448, jsc#PED-4579). - CVE-2023-4385: Fixed a NULL pointer dereference flaw in dbFree that may have allowed a local attacker to crash the system due to a missing sanity check (bsc#1214348).

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05 / REFERENCES

Further evidence