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Ubuntu: (CVE-2024-26849): linux-raspi-realtime vulnerability

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Ubuntu: (CVE-2024-26849): linux-raspi-realtime vulnerability

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
04/17/2024
Created
02/12/2025
Added
02/11/2025
Modified
02/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved: netlink: add nla be16/32 types to minlen array BUG: KMSAN: uninit-value in nla_validate_range_unsigned lib/nlattr.c:222 [inline] BUG: KMSAN: uninit-value in nla_validate_int_range lib/nlattr.c:336 [inline] BUG: KMSAN: uninit-value in validate_nla lib/nlattr.c:575 [inline] BUG: KMSAN: uninit-value in __nla_validate_parse+0x2e20/0x45c0 lib/nlattr.c:631 nla_validate_range_unsigned lib/nlattr.c:222 [inline] nla_validate_int_range lib/nlattr.c:336 [inline] validate_nla lib/nlattr.c:575 [inline] ... The message in question matches this policy: [NFTA_TARGET_REV] = NLA_POLICY_MAX(NLA_BE32, 255), but because NLA_BE32 size in minlen array is 0, the validation code will read past the malformed (too small) attribute. Note: Other attributes, e.g. BITFIELD32, SINT, UINT.. are also missing: those likely should be added too.

Solution(s)

  • ubuntu-upgrade-linux-raspi-realtime

References

  • https://attackerkb.com/topics/cve-2024-26849
  • CVE - 2024-26849
  • https://git.kernel.org/linus/9a0d18853c280f6a0ee99f91619f2442a17a323a
  • https://git.kernel.org/stable/c/0ac219c4c3ab253f3981f346903458d20bacab32
  • https://git.kernel.org/stable/c/7a9d14c63b35f89563c5ecbadf918ad64979712d
  • https://git.kernel.org/stable/c/9a0d18853c280f6a0ee99f91619f2442a17a323a
  • https://git.kernel.org/stable/c/a2ab028151841cd833cb53eb99427e0cc990112d
  • https://www.cve.org/CVERecord?id=CVE-2024-26849
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