Linux: Out-of-bounds Read
CVE-2023-52519 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 8781fe259dd5a178fdd1069401bbd1437f9491c5, cdcc04e844a2d22d9d25cef1e8e504a174ea9f8f, 60fb3f054c99608ddb1f2466c07108da6292951e 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 0.23% 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 8781fe259dd5a178fdd1069401bbd1437f9491c5 or cdcc04e844a2d22d9d25cef1e8e504a174ea9f8f or 60fb3f054c99608ddb1f2466c07108da6292951e or 8f02139ad9a7e6e5c05712f8c1501eebed8eacfd, whichever matches your release line, or a later version.
- Update Linux Kernel to 5.15.135 or 6.1.57 or 6.5.7, whichever matches your release line, or a later version.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Linux | Linux | 2e23a70edabe933284f690dff49497fb6b82b0e5 up to, but not including, 8781fe259dd5a178fdd1069401bbd1437f9491c5; 2e23a70edabe933284f690dff49497fb6b82b0e5 up to, but not including, cdcc04e844a2d22d9d25cef1e8e504a174ea9f8f; 2e23a70edabe933284f690dff49497fb6b82b0e5 up to, but not including, 60fb3f054c99608ddb1f2466c07108da6292951e; 2e23a70edabe933284f690dff49497fb6b82b0e5 up to, but not including, 8f02139ad9a7e6e5c05712f8c1501eebed8eacfd; 5.12 | 8781fe259dd5a178fdd1069401bbd1437f9491c5, cdcc04e844a2d22d9d25cef1e8e504a174ea9f8f, 60fb3f054c99608ddb1f2466c07108da6292951e, 8f02139ad9a7e6e5c05712f8c1501eebed8eacfd |
| Linux | Linux Kernel | 5.12 up to, but not including, 5.15.135; 5.16 up to, but not including, 6.1.57; 6.2 up to, but not including, 6.5.7; 6.6 | 5.15.135, 6.1.57, 6.5.7 |
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.
Official description
In the Linux kernel, the following vulnerability has been resolved: HID: intel-ish-hid: ipc: Disable and reenable ACPI GPE bit The EHL (Elkhart Lake) based platforms provide a OOB (Out of band) service, which allows to wakup device when the system is in S5 (Soft-Off state). This OOB service can be enabled/disabled from BIOS settings. When enabled, the ISH device gets PME wake capability. To enable PME wakeup, driver also needs to enable ACPI GPE bit. On resume, BIOS will clear the wakeup bit. So driver need to re-enable it in resume function to keep the next wakeup capability. But this BIOS clearing of wakeup bit doesn't decrement internal OS GPE reference count, so this reenabling on every resume will cause reference count to overflow. So first disable and reenable ACPI GPE bit using acpi_disable_gpe().
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.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Patches and release notes
Recent Out-of-bounds Read vulnerabilities
- 7.1 High severity
- 7.1 High severity
- 7.1 High severity
- 7.1 High severity
- 7.1 High severity
- 7.5 High severity
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