Out-of-bounds write in Linux kernel's Linux Kernel Performance Events (perf) component
CVE-2023-5717
7.8HIGH
Summary
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.
Affected Version(s)
Kernel < 6.6
CVSS V3.1
Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged
Timeline
- 👾
Exploit exists.
Vulnerability published.
Vulnerability Reserved.
Collectors
NVD DatabaseMitre Database0 Proof of Concept(s)
Credit
Budimir Markovic