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SUSE-SU-2023:3749-1 Not scored

Security update for the Linux Kernel (Live Patch 35 for SLE 12 SP5)

This update for the Linux Kernel 4.12.14-122_133 fixes several issues. The following security issues were fixed: - CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210619). - CVE-2023-3776: Fixed improper refcount update in cls_fw leads to use-after-free (bsc#1215119). - CVE-2023-3609: Fixed reference counter leak leading to overflow in net/sched (bsc#1213587). - CVE-2023-3812: Fixed an out-of-bounds memory access flaw in the TUN/TAP device driver functionality that could allow a local user to crash or potentially escalate their privileges on the system (bsc#1213706).

Exploit probability Not scored
Published September 25, 2023
Required by Not available
Last source change February 4, 2026

02 / AFFECTED SOFTWARE

Affected packages

SUSE:Linux Enterprise Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_35

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities SUSE-SU-2023:3749-1

This update for the Linux Kernel 4.12.14-122_133 fixes several issues. The following security issues were fixed: - CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210619). - CVE-2023-3776: Fixed improper refcount update in cls_fw leads to use-after-free (bsc#1215119). - CVE-2023-3609: Fixed reference counter leak leading to overflow in net/sched (bsc#1213587). - CVE-2023-3812: Fixed an out-of-bounds memory access flaw in the TUN/TAP device driver functionality that could allow a local user to crash or potentially escalate their privileges on the system (bsc#1213706).

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05 / REFERENCES

Further evidence