Linux: Out-of-bounds Read
CVE-2022-49792 is a high-severity out-of-bounds read vulnerability in Linux, with a CVSS 3.1 base score of 7.1 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. The record lists versions d95b85c5084ad70011988861ee864529eefa1da0, 1678d4abb2dc2ca3b05b998a9d88616976e4f947, 399b2105a2240e730b9f3880bd8f154247539aa7 as the first without the flaw, so updating Linux to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.21% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Linux to d95b85c5084ad70011988861ee864529eefa1da0 or 1678d4abb2dc2ca3b05b998a9d88616976e4f947 or 399b2105a2240e730b9f3880bd8f154247539aa7 or ca1547ab15f48dc81624183ae17a2fd1bad06dfc, whichever matches your release line, or a later version.
- Update Linux Kernel to 5.10.156 or 5.15.80 or 6.0.10, whichever matches your release line, or a later version.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Linux | Linux | 7abd9fb6468225f5c7f83149ce279cc1a912a68a up to, but not including, d95b85c5084ad70011988861ee864529eefa1da0; 7abd9fb6468225f5c7f83149ce279cc1a912a68a up to, but not including, 1678d4abb2dc2ca3b05b998a9d88616976e4f947; 7abd9fb6468225f5c7f83149ce279cc1a912a68a up to, but not including, 399b2105a2240e730b9f3880bd8f154247539aa7; 7abd9fb6468225f5c7f83149ce279cc1a912a68a up to, but not including, ca1547ab15f48dc81624183ae17a2fd1bad06dfc; 5.8 | d95b85c5084ad70011988861ee864529eefa1da0, 1678d4abb2dc2ca3b05b998a9d88616976e4f947, 399b2105a2240e730b9f3880bd8f154247539aa7, ca1547ab15f48dc81624183ae17a2fd1bad06dfc |
| Linux | Linux Kernel | 5.8 up to, but not including, 5.10.156; 5.11 up to, but not including, 5.15.80; 5.16 up to, but not including, 6.0.10; 6.1 | 5.10.156, 5.15.80, 6.0.10 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- NoneNothing can be modified.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.3 | High | CNA |
| CVSS 3.1 | 7.1 | High | NVD |
Official description
In the Linux kernel, the following vulnerability has been resolved: iio: adc: mp2629: fix potential array out of bound access Add sentinel at end of maps to avoid potential array out of bound access in iio core.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
How developers prevent this class of flaw
- Use a language that provides appropriate memory abstractions.
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Patches and release notes
Recent Out-of-bounds Read vulnerabilities
- 8.8 High severity
- 7.1 High severity
- 7.1 High severity
- 7.1 High severity
- 7.1 High severity
- 7.1 High severity
Spotted an error? Tell us.