CVE-2023-1281 — Use After Free in Kernel
Severity
7.8HIGHNVD
OSV8.8OSV6.7OSV5.5OSV4.7OSV4.6
EPSS
0.0%
top 96.23%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMar 22
Latest updateFeb 14
Description
Use After Free vulnerability in Linux kernel traffic control index filter (tcindex) allows Privilege Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use-after-free when 'tcf_exts_exec()' is called with the destroyed tcf_ext. A local attacker user can use this vulnerability to elevate its privileges to root.
This issue affects Linux Kernel: from 4.14 before git commit ee059170b1f7e94e55fa6cadee544e176a6e59c2.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9
Affected Packages13 packages
Patches
🔴Vulnerability Details
17📋Vendor Advisories
21Red Hat▶
hw: Intel: execution of MOVSB instructions with redundant REX prefix leads to unintended system behavior↗2023-11-14
💬Community
1Bugzilla▶
CVE-2023-1281 kernel: tcindex: use-after-free vulnerability in traffic control index filter allows privilege escalation↗2023-03-26