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Package : linux
CVE ID : CVE-2023-0386 CVE-2023-31436 CVE-2023-32233
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.
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