• [SECURITY] [DSA 5453-1] linux security update

    From Salvatore Bonaccorso@21:1/5 to All on Sun Jul 16 23:50:01 2023
    Hash: SHA512

    - ------------------------------------------------------------------------- Debian Security Advisory DSA-5453-1 security@debian.org https://www.debian.org/security/ Salvatore Bonaccorso
    July 16, 2023 https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package : linux
    CVE ID : CVE-2023-2156 CVE-2023-31248 CVE-2023-35001

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


    It was discovered that a flaw in the handling of the RPL protocol
    may allow an unauthenticated remote attacker to cause a denial of
    service if RPL is enabled (not by default in Debian).


    Mingi Cho discovered a use-after-free flaw in the Netfilter
    nf_tables implementation when using nft_chain_lookup_byid, which may
    result in local privilege escalation for a user with the
    CAP_NET_ADMIN capability in any user or network namespace.


    Tanguy DUBROCA discovered an out-of-bounds reads and write flaw in
    the Netfilter nf_tables implementation when processing an
    nft_byteorder expression, which may result in local privilege
    escalation for a user with the CAP_NET_ADMIN capability in any user
    or network namespace.

    For the oldstable distribution (bullseye), these problems have been fixed
    in version 5.10.179-2.

    We recommend that you upgrade your linux packages.

    For the detailed security status of linux please refer to its security
    tracker page at:

    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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