Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 7.6 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

RHEL 7 : kernel (RHSA-2023:7294)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:7294 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: net/sched: clsu32 component...

kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route

There are 3 CVEs for the use-after-free flaw found in net/sched/clsfw.c in classifiers clsfw, clsu32, and clsroute in the Linux Kernel: CVE-2023-4206, CVE-2023-4207, CVE-2023-4208. A local user could use any of these flaws to crash the system or potentially escalate their privileges on the system...

Important: Red Hat Security Advisory: kernel security, bug fix, and enhancement update

An update for kernel is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...

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: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route

There are 3 CVEs for the use-after-free flaw found in net/sched/clsfw.c in classifiers clsfw, clsu32, and clsroute in the Linux Kernel: CVE-2023-4206, CVE-2023-4207, CVE-2023-4208. A local user could use any of these flaws to crash the system or potentially escalate their privileges on the system...

kernel: use-after-free due to race condition in qdisc_graft()

A use-after-free flaw was found in qdiscgraft in net/sched/schapi.c in the Linux Kernel due to a race problem. This flaw leads to a denial of service issue. If patch ebda44da44f6 "net: sched: fix race condition in qdiscgraft" not applied yet, then kernel could be affected...

ALSA-2023:7077 Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: tun: avoid double free in tunfreenetdev CVE-2022-4744 kernel: net/sched: multiple vulnerabilities CVE-2023-3609, CVE-2023-3611, CVE-2023-4128, CVE-2023-4206, CVE-2023-4207, CVE-2023-4208...

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...

Important: Red Hat Security Advisory: kernel security, bug fix, and enhancement update

An update for kernel is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...

OracleVM 3.4 : kernel-uek (OVMSA-2023-0024)

The remote OracleVM system is missing necessary patches to address security updates: - An issue was discovered in l2capsockrelease in net/bluetooth/l2capsock.c in the Linux kernel before 6.4.10. There is a use-after-free because the children of an sk are mishandled. CVE-2023-40283 - A...

Unbreakable Enterprise kernel security update

4.1.12-124.80.1 - Bluetooth: L2CAP: Fix use-after-free in l2capsockreadycb Sungwoo Kim Orabug: 35814478 CVE-2023-40283 - net/sched: clsu32: No longer copy tcfresult on update to avoid use-after-free valis Orabug: 35814297 CVE-2023-4208 - RDMA/core: net: fix kernel NULL error Zhu Yanjun Orabug:...

Ubuntu 23.10 : Linux kernel (StarFive) vulnerabilities (USN-6454-4)

The remote Ubuntu 23.10 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6454-4 advisory. Kyle Zeng discovered that the netfilter subsystem in the Linux kernel contained a race condition in IP set operations in certain situations. A local attacker...

SUSE SLES12 Security Update : kernel (Live Patch 45 for SLE 12 SP5) (SUSE-SU-2023:4313-1)

The remote SUSE Linux SLES12 host has a package installed that is affected by a vulnerability as referenced in the SUSE- SU-2023:4313-1 advisory. - A use-after-free vulnerability in the Linux kernel's net/sched: schhfsc HFSC qdisc traffic control component can be exploited to achieve local...

Important: kernel-livepatch-5.10.186-179.751

Issue Overview: A use-after-free vulnerability in the Linux kernel's netfilter: nftables component can be exploited to achieve local privilege escalation. When nftablesdelrule is flushing table rules, it is not checked whether the chain is bound and the chain's owner rule can also release the...

Important: kernel-livepatch-4.14.322-244.536

Issue Overview: A use-after-free vulnerability in the Linux kernel's net/sched: clsfw component can be exploited to achieve local privilege escalation. When fwchange is called on an existing filter, the whole tcfresult struct is always copied into the new instance of the filter. This causes a...

Important: kernel-livepatch-5.10.192-182.736

Issue Overview: A use-after-free vulnerability in the Linux kernel's net/sched: schhfsc HFSC qdisc traffic control component can be exploited to achieve local privilege escalation. If a class with a link-sharing curve i.e. with the HFSCFSC flag set has a parent without a link-sharing curve, then...

SUSE SLES12 / SLES15 Security Update : kernel (Live Patch 42 for SLE 15 SP1) (SUSE-SU-2023:4321-1)

The remote SUSE Linux SLES12 / SLES15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2023:4321-1 advisory. - A use-after-free vulnerability in the Linux kernel's net/sched: schhfsc HFSC qdisc traffic control component can be exploited to achieve loca...

SUSE SLES15 Security Update : kernel (Live Patch 41 for SLE 15 SP1) (SUSE-SU-2023:4278-1)

The remote SUSE Linux SLES15 host has a package installed that is affected by a vulnerability as referenced in the SUSE- SU-2023:4278-1 advisory. - A use-after-free vulnerability in the Linux kernel's net/sched: schhfsc HFSC qdisc traffic control component can be exploited to achieve local...

Ubuntu 23.10 : Linux kernel (ARM laptop) vulnerabilities (USN-6454-3)

The remote Ubuntu 23.10 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6454-3 advisory. Kyle Zeng discovered that the netfilter subsystem in the Linux kernel contained a race condition in IP set operations in certain situations. A local attacker...