CVE-2022-48804
vt_ioctl: fix array_index_nospec in vt_setactivate
Vexday Risk Score
3Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS —EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
16 Jul 2024Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
In the Linux kernel, the following vulnerability has been resolved:
vt_ioctl: fix array_index_nospec in vt_setactivate
array_index_nospec ensures that an out-of-bounds value is set to zero
on the transient path. Decreasing the value by one afterwards causes
a transient integer underflow. vsa.console should be decreased first
and then sanitized with array_index_nospec.
Kasper Acknowledgements: Jakob Koschel, Brian Johannesmeyer, Kaveh
Razavi, Herbert Bos, Cristiano Giuffrida from the VUSec group at VU
Amsterdam.
Affected products
Linux · LinuxWant to know if your infrastructure is exposed to this?
Talk to TrueHacking →References
https://git.kernel.org/stable/c/170325aba4608bde3e7d21c9c19b7bc266ac0885https://git.kernel.org/stable/c/2a45a6bd1e6d651770aafff57ab3e1d3bb0b42e0https://git.kernel.org/stable/c/61cc70d9e8ef5b042d4ed87994d20100ec8896d9https://git.kernel.org/stable/c/6550bdf52846f85a2a3726a5aa0c7c4399f2fc02https://git.kernel.org/stable/c/778302ca09498b448620edd372dc908bebf80bdfhttps://git.kernel.org/stable/c/830c5aa302ec16b4ee641aec769462c37f802c90https://git.kernel.org/stable/c/ae3d57411562260ee3f4fd5e875f410002341104https://git.kernel.org/stable/c/ffe54289b02e9c732d6f04c8ebbe3b2d90d32118