Important: kernel-livepatch-5.10.192-183.736

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 SLES15 Security Update : kernel (Live Patch 16 for SLE 15 SP4) (SUSE-SU-2023:4301-1)

The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:4301-1 advisory. This update for the Linux Kernel 5.14.21-1504002481 fixes several issues. The following security issues were fixed: - CVE-2023-4147: Fixed...

PYSEC-2023-230

Synapse is an open-source Matrix homeserver Prior to versions 1.95.1 and 1.96.0rc1, cached device information of remote users can be queried from Synapse. This can be used to enumerate the remote users known to a homeserver. System administrators are encouraged to upgrade to Synapse 1.95.1 or...

SUSE SLES12 Security Update : kernel (Live Patch 48 for SLE 12 SP5) (SUSE-SU-2023:4273-1)

The remote SUSE Linux SLES12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:4273-1 advisory. This update for the Linux Kernel 4.12.14-122176 fixes several issues. The following security issues were fixed: - CVE-2023-4623: Fixed a...

SUSE SLES15 Security Update : kernel (Live Patch 36 for SLE 15 SP3) (SUSE-SU-2023:4261-1)

The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:4261-1 advisory. This update for the Linux Kernel 5.3.18-15030059133 fixes several issues. The following security issues were fixed: - CVE-2023-4623: Fixed a...

Use-after-free in Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control) component

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SUSE SLES15: kernel-livepatch-5_14_21-150400_15_46-rt / etc (SUSE-SU-2023:4165-1)

The remote SUSE Linux SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:4165-1 advisory. This update for the Linux Kernel 5.14.21-1504001546 fixes several issues. The following security issues were fixed: - CVE-2023-4147: Fixed...

SUSE SLES15: kernel-livepatch-5_14_21-150400_15_53-rt / etc (SUSE-SU-2023:4164-1)

The remote SUSE Linux SLES15 host has packages installed that are affected by a vulnerability as referenced in the SUSE- SU-2023:4164-1 advisory. This update for the Linux Kernel 5.14.21-1504001553 fixes one issue. The following security issue was fixed: - CVE-2023-4623: Fixed a use-after-free...

Ubuntu 22.04 LTS : Linux kernel vulnerabilities (USN-6171-1)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6171-1 advisory. William Zhao discovered that the Traffic Control TC subsystem in the Linux kernel did not properly handle network packet retransmission in certain...

Ubuntu 23.04 : Linux kernel vulnerabilities (USN-6175-1)

The remote Ubuntu 23.04 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6175-1 advisory. Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in the netfilter subsystem of the Linux kernel when processing batch requests, leadi...

RLSA-2023:4517 Important: kernel security and bug fix update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: use-after-free in l2capconnect and l2capleconnectreq in net/bluetooth/l2capcore.c CVE-2022-42896 kernel: tcindex: use-after-free vulnerability in traffic control index filter allows...

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...

CLSA-2023-1695041084 Fix of 8 CVEs

CVE-url: https://ubuntu.com/security/CVE-2023-4622 - afunix: Fix null-ptr-deref in unixstreamsendpage. Jammy update: v5.15.105 upstream stable release LP: 2023230 // CVE-url: https://ubuntu.com/security/CVE-2022-4269 - net/sched: actmirred: better wording on protection against excessive stack...

USN-6347-1 linux-azure-fde-5.15 vulnerabilities

William Zhao discovered that the Traffic Control TC subsystem in the Linux kernel did not properly handle network packet retransmission in certain situations. A local attacker could use this to cause a denial of service kernel deadlock. CVE-2022-4269 It was discovered that the NTFS file system...

CVE-2023-4623

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 initvf will call...

CVE-2023-4623

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 initvf will call...

UBUNTU-CVE-2023-4623

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 initvf will call...

Design/Logic Flaw

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 initvf will call...

CVE-2023-4623 Use-after-free in Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control) component

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 initvf will call...

CVE-2023-4623 Use-after-free in Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control) component

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 initvf will call...