high
7.8
CWE
787 1314
EPSS
0.042%
Advisory Published
CVE Published
Updated

CVE-2024-0646: High Fixes for in Linux Kernel

First published: Sun Dec 10 2023(Updated: )

A flaw in the Linux Kernel found. When splice() is called with a ktls socket as destination, the ktls code fails to update the internal "curr"/"copybreak" accounting that tracks which parts of the plaintext scatter-gather buffer (`struct sk_msg_sg`) are unused writable memory. This can cause subsequent writes to the socket to overwrite the contents of spliced pages, including pages from files to which the caller is not supposed to have write access. Reference: <a href="https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c5a595000e267">https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c5a595000e267</a>

Credit: secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/kernel<6.7
6.7
IBM QRadar SIEM<=7.5 - 7.5.0 UP8 IF01
Linux Linux kernel>=4.20<5.4.267
Linux Linux kernel>=5.5<5.10.208
Linux Linux kernel>=5.11<5.15.147
Linux Linux kernel>=5.16<6.1.69
Linux Linux kernel>=6.2<6.6.7
Linux Linux kernel=6.7-rc1
Linux Linux kernel=6.7-rc2
Linux Linux kernel=6.7-rc3
Linux Linux kernel=6.7-rc4
Redhat Enterprise Linux=8.0
Redhat Enterprise Linux=9.0
debian/linux
5.10.223-1
5.10.226-1
6.1.115-1
6.1.119-1
6.11.10-1
6.12.3-1

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=2253908

Remedy

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c5a595000e267

Remedy

https://git.kernel.org/linus/d829e9c4112b52f4f00195900fd4c685f61365ab

Remedy

https://git.kernel.org/linus/c5a595000e2677e865a39f249c056bc05d6e55fd

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