------------------------------------------------------------------------- Debian LTS Advisory DLA-3446-1 [email protected] https://www.debian.org/lts/security/ Ben Hutchings June 05, 2023 https://wiki.debian.org/LTS ------------------------------------------------------------------------- Package : linux-5.10 Version : 5.10.179-1~deb10u1 CVE ID : CVE-2023-0386 CVE-2023-31436 CVE-2023-32233 Debian Bug : 1035779 Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. CVE-2023-0386 It was discovered that under certain conditions the overlayfs filesystem implementation did not properly handle copy up operations. A local user permitted to mount overlay mounts in user namespaces can take advantage of this flaw for local privilege escalation. CVE-2023-31436 Gwangun Jung reported a a flaw causing heap out-of-bounds read/write errors in the traffic control subsystem for the Quick Fair Queueing scheduler (QFQ) which may result in information leak, denial of service or privilege escalation. CVE-2023-32233 Patryk Sondej and Piotr Krysiuk discovered a use-after-free flaw in the Netfilter nf_tables implementation when processing batch requests, which may result in local privilege escalation for a user with the CAP_NET_ADMIN capability in any user or network namespace. For Debian 10 buster, these problems have been fixed in version 5.10.179-1~deb10u1. We recommend that you upgrade your linux-5.10 packages. For the detailed security status of linux-5.10 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/linux-5.10 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS
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