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Debian Security Advisory 5593-1

Debian Security Advisory 5593-1
Posted Jan 2, 2024
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5593-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2023-51779, CVE-2023-51780, CVE-2023-51781, CVE-2023-51782, CVE-2023-6531, CVE-2023-6622, CVE-2023-6817, CVE-2023-6931
SHA-256 | 0cdb7688a71fd9cbf7b4849b0d1c056005ac011c07a4a27e51fd8802f6459e2f

Debian Security Advisory 5593-1

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- -------------------------------------------------------------------------
Debian Security Advisory DSA-5593-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
January 01, 2024 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : linux
CVE ID : CVE-2023-6531 CVE-2023-6622 CVE-2023-6817 CVE-2023-6931
CVE-2023-51779 CVE-2023-51780 CVE-2023-51781 CVE-2023-51782

Several vulnerabilities have been discovered in the Linux kernel that
may lead to a privilege escalation, denial of service or information
leaks.

CVE-2023-6531

Jann Horn discovered a use-after-free flaw due to a race condition
problem when the unix garbage collector's deletion of a SKB races
with unix_stream_read_generic() on the socket that the SKB is
queued on.

CVE-2023-6622

Xingyuan Mo discovered a flaw in the netfilter subsystem which may
result in denial of service or privilege escalation for a user with
the CAP_NET_ADMIN capability in any user or network namespace.

CVE-2023-6817

Xingyuan Mo discovered that a use-after-free in Netfilter's
implementation of PIPAPO (PIle PAcket POlicies) may result in denial
of service or potential local privilege escalation for a user with
the CAP_NET_ADMIN capability in any user or network namespace.

CVE-2023-6931

Budimir Markovic reported a heap out-of-bounds write vulnerability
in the Linux kernel's Performance Events system which may result in
denial of service or privilege escalation.

CVE-2023-51779

It was discovered that a race condition in the Bluetooth subsystem
in the bt_sock_ioctl handling may lead to a use-after-free.

CVE-2023-51780

It was discovered that a race condition in the ATM (Asynchronous
Transfer Mode) subsystem may lead to a use-after-free.

CVE-2023-51781

It was discovered that a race condition in the Appletalk subsystem
may lead to a use-after-free.

CVE-2023-51782

It was discovered that a race condition in the Amateur Radio X.25
PLP (Rose) support may lead to a use-after-free.

For the stable distribution (bookworm), these problems have been fixed in
version 6.1.69-1.

We recommend that you upgrade your linux packages.

For the detailed security status of linux please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/linux

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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