Published: 28/02/2023 Updated: 06/06/2023

CVSS v3 Base Score: 7.8 | Impact Score: 5.9 | Exploitability Score: 1.8

VMScore: 0

There is a use-after-free vulnerability in the Linux Kernel which can be exploited to achieve local privilege escalation. To reach the vulnerability kernel configuration flag CONFIG_TLS or CONFIG_XFRM_ESPINTCP has to be configured, but the operation does not require any privilege. There is a use-after-free bug of icsk_ulp_data of a struct inet_connection_sock. When CONFIG_TLS is enabled, user can install a tls context (struct tls_context) on a connected tcp socket. The context is not cleared if this socket is disconnected and reused as a listener. If a new socket is created from the listener, the context is inherited and vulnerable. The setsockopt TCP_ULP operation does not require any privilege. We recommend upgrading past commit 2c02d41d71f90a5168391b6a5f2954112ba2307c

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linux linux kernel 6.2
linux linux kernel

Synopsis Moderate: OpenShift Container Platform 41056 security update Type/Severity Security Advisory: Moderate Topic Red Hat OpenShift Container Platform release 41056 is now available with updates to packages and images that fix several bugs and add enhancementsThis release includes a security update for Red Hat OpenShift Container Pla ...

Synopsis Important: kernel-rt security and bug fix update Type/Severity Security Advisory: Important Red Hat Insights patch analysis Identify and remediate systems affected by this advisory View affected systems Topic An update for kernel-rt is now available for Red Hat Enterprise Linux 84 Extended Update SupportRed Hat Product S ...

Synopsis Important: kernel security update Type/Severity Security Advisory: Important Red Hat Insights patch analysis Identify and remediate systems affected by this advisory View affected systems Topic An update for kernel is now available for Red Hat Enterprise Linux 81 Update Services for SAP SolutionsRed Hat Product Security ...

Synopsis Important: Red Hat Virtualization Host 44z SP 1 security update Type/Severity Security Advisory: Important Red Hat Insights patch analysis Identify and remediate systems affected by this advisory View affected systems Topic An update for redhat-release-virtualization-host and redhat-virtualization-host is now available f ...

Synopsis Important: kernel security and bug fix update Type/Severity Security Advisory: Important Red Hat Insights patch analysis Identify and remediate systems affected by this advisory View affected systems Topic An update for kernel is now available for Red Hat Enterprise Linux 90 Extended Update SupportRed Hat Product Securit ...

Synopsis Important: kpatch-patch security update Type/Severity Security Advisory: Important Red Hat Insights patch analysis Identify and remediate systems affected by this advisory View affected systems Topic An update for kpatch-patch is now available for Red Hat Enterprise Linux 84 Extended Update SupportRed Hat Product Securit ...

Synopsis Important: kernel security, bug fix, and enhancement update Type/Severity Security Advisory: Important Red Hat Insights patch analysis Identify and remediate systems affected by this advisory View affected systems Topic An update for kernel is now available for Red Hat Enterprise Linux 9Red Hat Product Security has rated ...

Synopsis Important: kpatch-patch security update Type/Severity Security Advisory: Important Red Hat Insights patch analysis Identify and remediate systems affected by this advisory View affected systems Topic An update for kpatch-patch is now available for Red Hat Enterprise Linux 86 Extended Update SupportRed Hat Product Securit ...

Synopsis Important: kpatch-patch security update Type/Severity Security Advisory: Important Red Hat Insights patch analysis Identify and remediate systems affected by this advisory View affected systems Topic An update for kpatch-patch-4_18_0-193_100_1, kpatch-patch-4_18_0-193_105_1, kpatch-patch-4_18_0-193_95_1, and kpatch-patch-4 ...

Synopsis Important: kernel security and bug fix update Type/Severity Security Advisory: Important Red Hat Insights patch analysis Identify and remediate systems affected by this advisory View affected systems Topic An update for kernel is now available for Red Hat Enterprise Linux 82 Advanced Update Support, Red Hat Enterprise Lin ...

Synopsis Important: kpatch-patch security update Type/Severity Security Advisory: Important Red Hat Insights patch analysis Identify and remediate systems affected by this advisory View affected systems Topic An update for kpatch-patch is now available for Red Hat Enterprise Linux 90 Extended Update SupportRed Hat Product Securit ...

Synopsis Important: kernel security and bug fix update Type/Severity Security Advisory: Important Red Hat Insights patch analysis Identify and remediate systems affected by this advisory View affected systems Topic An update for kernel is now available for Red Hat Enterprise Linux 86 Extended Update SupportRed Hat Product Securit ...

Synopsis Important: kernel security and bug fix update Type/Severity Security Advisory: Important Red Hat Insights patch analysis Identify and remediate systems affected by this advisory View affected systems Topic An update for kernel is now available for Red Hat Enterprise Linux 84 Extended Update SupportRed Hat Product Securit ...

Synopsis Moderate: Logging Subsystem 572 - Red Hat OpenShift security update Type/Severity Security Advisory: Moderate Topic Logging Subsystem 572 - Red Hat OpenShiftRed Hat Product Security has rated this update as having a security impact of Moderate A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severi ...

Synopsis Critical: Red Hat Advanced Cluster Management 266 security fixes and container updates Type/Severity Security Advisory: Critical Topic Red Hat Advanced Cluster Management for Kubernetes 266 GeneralAvailability release images, which fix security issues and update container imagesRed Hat Product Security has rated this update as h ...

Synopsis Critical: Red Hat Advanced Cluster Management 259 security fixes and container updates Type/Severity Security Advisory: Critical Topic Red Hat Advanced Cluster Management for Kubernetes 259 GeneralAvailability release images, which fix security issues and update container imagesRed Hat Product Security has rated this update as h ...

DescriptionThe MITRE CVE dictionary describes this issue as: There is a use-after-free vulnerability in the Linux Kernel which can be exploited to achieve local privilege escalation To reach the vulnerability kernel configuration flag CONFIG_TLS or CONFIG_XFRM_ESPINTCP has to be configured, but the operation does not require any privilege There i ...

CWE-416 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2c02d41d71f90a5168391b6a5f2954112ba2307c https://kernel.dance/#2c02d41d71f90a5168391b6a5f2954112ba2307c https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html https://nvd.nist.gov https://access.redhat.com/errata/RHSA-2023:1656 https://access.redhat.com/security/cve/cve-2023-0461

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CVE-2023-0461

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