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

CVE-2023-5717: Out-of-bounds write in Linux kernel's Linux Kernel Performance Events (perf) component

First published: Wed Oct 25 2023(Updated: )

A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf) component can be exploited to achieve local privilege escalation. If perf_read_group() is called while an event's sibling_list is smaller than its child's sibling_list, it can increment or write to memory locations outside of the allocated buffer. We recommend upgrading past commit 32671e3799ca2e4590773fd0e63aaa4229e50c06.

Credit: cve-coordination@google.com cve-coordination@google.com

Affected SoftwareAffected VersionHow to fix
IBM QRadar SIEM<=7.5 - 7.5.0 UP8 IF01
Linux Linux kernel>=3.2.95<3.3
Linux Linux kernel>=3.16.50<3.17
Linux Linux kernel>=4.4<4.14.328
Linux Linux kernel>=4.15<4.19.297
Linux Linux kernel>=4.20<5.4.259
Linux Linux kernel>=5.5<5.10.199
Linux Linux kernel>=5.11<5.15.137
Linux Linux kernel>=5.16<6.1.60
Linux Linux kernel>=6.2<6.5.9
Linux Linux kernel=6.6-rc1
Linux Linux kernel=6.6-rc2
Linux Linux kernel=6.6-rc3
Linux Linux kernel=6.6-rc4
Linux Linux kernel=6.6-rc5
Linux Linux kernel=6.6-rc6
debian/linux
5.10.223-1
5.10.226-1
6.1.115-1
6.1.112-1
6.11.5-1
6.11.7-1

Remedy

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/kernel/events?id=32671e3799ca2e4590773fd0e63aaa4229e50c06

Remedy

https://kernel.dance/32671e3799ca2e4590773fd0e63aaa4229e50c06

Remedy

https://git.kernel.org/linus/fa8c269353d560b7c28119ad7617029f92e40b15

Remedy

https://git.kernel.org/linus/32671e3799ca2e4590773fd0e63aaa4229e50c06

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2023-5717?

    CVE-2023-5717 is a vulnerability in the Linux kernel's Linux Kernel Performance Events (perf) component that allows for local privilege escalation.

  • How can the CVE-2023-5717 vulnerability be exploited?

    The CVE-2023-5717 vulnerability can be exploited by calling perf_read_group() while an event's sibling_list is smaller than its child's sibling_list, allowing for a heap out-of-bounds write.

  • Which software is affected by CVE-2023-5717?

    The Linux kernel versions between 4.4 and 6.6, as well as Linux kernel versions 6.6-rc1, 6.6-rc2, 6.6-rc3, 6.6-rc4, 6.6-rc5, and 6.6-rc6 are affected by CVE-2023-5717.

  • What is the severity of CVE-2023-5717?

    CVE-2023-5717 has a severity rating of 7.8 (High).

  • How can I fix the CVE-2023-5717 vulnerability?

    To fix the CVE-2023-5717 vulnerability, it is recommended to update to a patched version of the Linux kernel.

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