UBUNTU-CVE-2023-5717
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.
02 / AFFECTED SOFTWARE
Affected packages
86 explicit affected versions
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03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/kernel/events?id=32671e3799ca2e4590773fd0e63aaa4229e50c06
- https://kernel.dance/32671e3799ca2e4590773fd0e63aaa4229e50c06
- https://lore.kernel.org/all/[email protected]/T/#u
- https://ubuntu.com/security/CVE-2023-5717
- https://ubuntu.com/security/notices/USN-6494-1
- https://ubuntu.com/security/notices/USN-6494-2
- https://ubuntu.com/security/notices/USN-6497-1
- https://ubuntu.com/security/notices/USN-6532-1
- https://ubuntu.com/security/notices/USN-6534-1
- https://ubuntu.com/security/notices/USN-6534-2
- https://ubuntu.com/security/notices/USN-6534-3
- https://ubuntu.com/security/notices/USN-6536-1
- https://ubuntu.com/security/notices/USN-6537-1
- https://ubuntu.com/security/notices/USN-6548-1
- https://ubuntu.com/security/notices/USN-6548-2
- https://ubuntu.com/security/notices/USN-6548-3
- https://ubuntu.com/security/notices/USN-6548-4
- https://ubuntu.com/security/notices/USN-6548-5
- https://ubuntu.com/security/notices/USN-6549-1
- https://ubuntu.com/security/notices/USN-6549-2
- https://ubuntu.com/security/notices/USN-6549-3
- https://ubuntu.com/security/notices/USN-6549-4
- https://ubuntu.com/security/notices/USN-6549-5
- https://ubuntu.com/security/notices/USN-6573-1
- https://ubuntu.com/security/notices/USN-6635-1
- https://www.cve.org/CVERecord?id=CVE-2023-5717