Description
A cross-privilege Spectre v2 vulnerability allows attackers to bypass all deployed mitigations, including the recent Fine(IBT), and to leak arbitrary Linux kernel memory on Intel systems.
References (9)
Core 9
Core References
Various Sources
http://xenbits.xen.org/xsa/advisory-456.html
Various Sources
https://github.com/vusec/inspectre-gadget?tab=readme-ov-file
Various Sources
https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/advisory-guidance/branch-history-injection.htm
Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/6QKNCPX7CJUK4I6BRGABAUQK2DMQZUCA/
Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/D5OK6MH75S7YWD34EWW7QIZTS627RIE3/
Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/RYAZ7P6YFJ2E3FHKAGIKHWS46KYMMTZH/
Third Party Advisory, US Government Resource
https://www.kb.cert.org/vuls/id/155143
Scores
CVSS v3
4.7
EPSS
0.0003
EPSS Percentile
8.9%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
Status
published
Products (1)
Xen/Xen
See advisory "x86: Native Branch History Injection"
Published
Dec 19, 2024
Tracked Since
Feb 18, 2026