CVE-2022-48804
Last modified
CVE-2022-48804 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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. EPSS estimates a 0.31% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | < 4.9.302 | — |
| Linux | Linux Kernel | >= 4.10, < 4.14.267 | — |
| Linux | Linux Kernel | >= 4.15, < 4.19.320 | — |
| Linux | Linux Kernel | >= 4.20, < 5.4.180 | — |
| Linux | Linux Kernel | >= 5.5, < 5.10.101 | — |
| Linux | Linux Kernel | >= 5.11, < 5.15.24 | — |
| Linux | Linux Kernel | >= 5.16, < 5.16.10 | — |
| Linux | Linux Kernel | 5.17 | Rc1 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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