K000138726: Linux kernel vulnerability CVE-2023-3611

Security Advisory Description An out-of-bounds write vulnerability in the Linux kernel's net/sched: schqfq component can be exploited to achieve local privilege escalation. The qfqchangeagg function in net/sched/schqfq.c allows an out-of-bounds write because lmax is updated according to packet...

SUSE CVE-2021-47014

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix wild memory access when clearing fragments while testing re-assembly/re-fragmentation using actct, it's possible to observe a crash like the following one: KASAN: maybe wild-memory-access in range...

SUSE SLES12: kernel-livepatch-5_14_21-150500_55_19-default / etc (SUSE-SU-2024:0698-1)

The remote SUSE Linux SLES12 / SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:0698-1 advisory. This update for the Linux Kernel 4.12.14-122147 fixes several issues. The following security issues were fixed: - CVE-2023-4921: Fixed...

CVE-2021-47044

A shift-out-of-bounds vulnerability was found in the Linux kernel, which affects the loadbalance function in the sched/fair component, and is caused when the to-be-active-balanced task is not allowed to run on env-dstcpu, allowing the sd-nrbalancefailed value to grow exceedingly large. Mitigation...

SUSE SLES12: kernel-livepatch-5_14_21-150500_11-rt / etc (SUSE-SU-2024:0655-1)

The remote SUSE Linux SLES12 / SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:0655-1 advisory. This update for the Linux Kernel 4.12.14-122153 fixes several issues. The following security issues were fixed: - CVE-2023-4921: Fixed...

CVE-2021-47014

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix wild memory access when clearing fragments while testing re-assembly/re-fragmentation using actct, it's possible to observe a crash like the following one: KASAN: maybe wild-memory-access in range...

CVE-2021-47014

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix wild memory access when clearing fragments while testing re-assembly/re-fragmentation using actct, it's possible to observe a crash like the following one: KASAN: maybe wild-memory-access in range...

DEBIAN-CVE-2021-46993

In the Linux kernel, the following vulnerability has been resolved: sched: Fix out-of-bound access in uclamp Util-clamp places tasks in different buckets based on their clamp values for performance reasons. However, the size of buckets is currently computed using a rounding division, which can le...

Spoofing

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix wild memory access when clearing fragments while testing re-assembly/re-fragmentation using actct, it's possible to observe a crash like the following one: KASAN: maybe wild-memory-access in range...

CVE-2021-47014

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix wild memory access when clearing fragments while testing re-assembly/re-fragmentation using actct, it's possible to observe a crash like the following one: KASAN: maybe wild-memory-access in range...

UBUNTU-CVE-2021-47044

In the Linux kernel, the following vulnerability has been resolved: sched/fair: Fix shift-out-of-bounds in loadbalance Syzbot reported a handful of occurrences where an sd-nrbalancefailed can grow to much higher values than one would expect. A successful loadbalance resets it to 0; a failed one...

Spoofing

In the Linux kernel, the following vulnerability has been resolved: sched: Fix out-of-bound access in uclamp Util-clamp places tasks in different buckets based on their clamp values for performance reasons. However, the size of buckets is currently computed using a rounding division, which can le...

CVE-2021-47044

In the Linux kernel, the following vulnerability has been resolved: sched/fair: Fix shift-out-of-bounds in loadbalance Syzbot reported a handful of occurrences where an sd-nrbalancefailed can grow to much higher values than one would expect. A successful loadbalance resets it to 0; a failed one...

CVE-2021-47014

CVE-2021-47014 affects the Linux kernel’s net/sched code, specifically the act_ct action used during IP fragment handling. The root cause was a wild memory access that occurred when a temporarily stored IP fragment was reassembled: restoring skb->cb could overwrite FRAG_CB(), causing invalid m...

CVE-2021-47014 net/sched: act_ct: fix wild memory access when clearing fragments

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix wild memory access when clearing fragments while testing re-assembly/re-fragmentation using actct, it's possible to observe a crash like the following one: KASAN: maybe wild-memory-access in range...

CVE-2021-47014 net/sched: act_ct: fix wild memory access when clearing fragments

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix wild memory access when clearing fragments while testing re-assembly/re-fragmentation using actct, it's possible to observe a crash like the following one: KASAN: maybe wild-memory-access in range...

CVE-2021-46993 sched: Fix out-of-bound access in uclamp

In the Linux kernel, the following vulnerability has been resolved: sched: Fix out-of-bound access in uclamp Util-clamp places tasks in different buckets based on their clamp values for performance reasons. However, the size of buckets is currently computed using a rounding division, which can le...

CVE-2021-46954

In the Linux kernel, the following vulnerability has been resolved: net/sched: schfrag: fix stack OOB read while fragmenting IPv4 packets when 'actmirred' tries to fragment IPv4 packets that had been previously re-assembled using 'actct', splats like the following can be observed on kernels built...

K000138731: Linux vulnerability CVE-2023-3776

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

Design/Logic Flaw

In the Linux kernel, the following vulnerability has been resolved: net/sched: schfrag: fix stack OOB read while fragmenting IPv4 packets when 'actmirred' tries to fragment IPv4 packets that had been previously re-assembled using 'actct', splats like the following can be observed on kernels built...