SUSE-SU-2023:4243-1 Security update for the Linux Kernel (Live Patch 40 for SLE 15 SP2)

This update for the Linux Kernel 5.3.18-15020024163 fixes several issues. The following security issues were fixed: - CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation bsc1215440. - CVE-2023-1829: Fixed a...

SUSE-SU-2023:4175-1 Security update for the Linux Kernel RT (Live Patch 1 for SLE 15 SP5)

This update for the Linux Kernel 5.14.21-150500135 fixes several issues. The following security issues were fixed: - CVE-2023-4147: Fixed use-after-free in nftablesnewrule bsc1215118. - CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve...

SUSE-SU-2023:4166-1 Security update for the Linux Kernel RT (Live Patch 0 for SLE 15 SP5)

This update for the Linux Kernel 5.14.21-15050011 fixes several issues. The following security issues were fixed: - CVE-2023-4147: Fixed use-after-free in nftablesnewrule bsc1215118. - CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve...

SUSE-SU-2023:4164-1 Security update for the Linux Kernel RT (Live Patch 5 for SLE 15 SP5)

This update for the Linux Kernel 5.14.21-1505001318 fixes one issue. The following security issue was fixed: - CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation bsc1215440...

Important: kernel-livepatch-6.1.29-50.88

Issue Overview: A use-after-free vulnerability in the Linux kernel's net/sched: clsu32 component can be exploited to achieve local privilege escalation. If tcfchangeindev fails, u32setparms will immediately return an error after incrementing or decrementing the reference counter in tcfbindfilter...

SUSE-SU-2023:4142-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP3 RT kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2023-4389: Fixed a reference counting issue in the Btrfs filesystem that could be exploited in order to leak internal kernel information or crash the syst...

kernel: net/sched: cls_fw component can be exploited as result of failure in tcf_change_indev function

A use-after-free vulnerability was found in fwsetparms in net/sched/clsfw.c in network scheduler sub-component in the Linux Kernel. This issue occurs due to a missing sanity check during cleanup at the time of failure, leading to a misleading reference. This may allow a local attacker to gain loc...

kernel: net/sched: cls_fw component can be exploited as result of failure in tcf_change_indev function

A use-after-free vulnerability was found in fwsetparms in net/sched/clsfw.c in network scheduler sub-component in the Linux Kernel. This issue occurs due to a missing sanity check during cleanup at the time of failure, leading to a misleading reference. This may allow a local attacker to gain loc...

kernel: net/sched: cls_u32 component reference counter leak if tcf_change_indev() fails

A double-free flaw was found in u32setparms in net/sched/clsu32.c in the Network Scheduler component in the Linux kernel. This flaw allows a local attacker to use a failure event to mishandle the reference counter, leading to a local privilege escalation threat...

kernel: net/sched: cls_u32 component reference counter leak if tcf_change_indev() fails

A double-free flaw was found in u32setparms in net/sched/clsu32.c in the Network Scheduler component in the Linux kernel. This flaw allows a local attacker to use a failure event to mishandle the reference counter, leading to a local privilege escalation threat...

SUSE-SU-2023:4035-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP5 RT kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2023-39194: Fixed an out of bounds read in the XFRM subsystem bsc1215861. - CVE-2023-39193: Fixed an out of bounds read in the xtables subsystem bsc121586...

USN-6397-1: Linux kernel (BlueField) vulnerabilities

Daniel Moghimi discovered that some IntelR Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information. CVE-2022-40982 Ruihan Li discovered that the bluetooth subsystem ...

CLSA-2023-1695715460 kernel: Fix of 24 CVEs

xen/xenbus: don't let xenbusgrantring remove grants in error case CVE-2022-23040 - xen/xenbus: Fix granting of vmalloc'd memory - xen/blkfront: don't use gnttabqueryforeignaccess for mapped status CVE-2022-23036 - xen/grant-table: add gnttabtryendforeignaccess CVE-2022-23036 - xen/blkfront: don't...

[Important] [Security] Virtuozzo ReadyKernel Patch 161.0 for Virtuozzo Hybrid Server 7.5

The cumulative Virtuozzo ReadyKernel patch was updated with security fixes. The patch applies to all supported kernels of Virtuozzo Hybrid Server 7.5. Vulnerability id: PSBM-150027 3.10.0-1160.53.1.vz7.185.3 to 3.10.0-1160.90.1.vz7.200.7 A race condition in 'venetdev' leads to corrupted data in...

kernel: net/sched: cls_fw component can be exploited as result of failure in tcf_change_indev function

A use-after-free vulnerability was found in fwsetparms in net/sched/clsfw.c in network scheduler sub-component in the Linux Kernel. This issue occurs due to a missing sanity check during cleanup at the time of failure, leading to a misleading reference. This may allow a local attacker to gain loc...

kernel: net/sched: cls_fw component can be exploited as result of failure in tcf_change_indev function

A use-after-free vulnerability was found in fwsetparms in net/sched/clsfw.c in network scheduler sub-component in the Linux Kernel. This issue occurs due to a missing sanity check during cleanup at the time of failure, leading to a misleading reference. This may allow a local attacker to gain loc...

OESA-2023-1637 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: A use-after-free vulnerability in the Linux kernel's net/sched: clsroute component can be exploited to achieve local privilege escalation. When route4change is called on an existing filter, the whole tcfresult struct is always...

Use-after-free in Linux kernel's net/sched: sch_qfq component

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CVE-2023-4921 Use-after-free in Linux kernel's net/sched: sch_qfq component

A use-after-free vulnerability in the Linux kernel's net/sched: schqfq component can be exploited to achieve local privilege escalation. When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfqdequeue due to the incorrect .peek handler of...

kernel: net/sched: cls_fw component can be exploited as result of failure in tcf_change_indev function

A use-after-free vulnerability was found in fwsetparms in net/sched/clsfw.c in network scheduler sub-component in the Linux Kernel. This issue occurs due to a missing sanity check during cleanup at the time of failure, leading to a misleading reference. This may allow a local attacker to gain loc...