Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2023-52913

Severity CVSS v4.0:
Pending analysis
Type:
CWE-416 Use After Free
Publication date:
21/08/2024
Last modified:
08/11/2024

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/i915: Fix potential context UAFs<br /> <br /> gem_context_register() makes the context visible to userspace, and which<br /> point a separate thread can trigger the I915_GEM_CONTEXT_DESTROY ioctl.<br /> So we need to ensure that nothing uses the ctx ptr after this. And we<br /> need to ensure that adding the ctx to the xarray is the *last* thing<br /> that gem_context_register() does with the ctx pointer.<br /> <br /> [tursulin: Stable and fixes tags add/tidy.]<br /> (cherry picked from commit bed4b455cf5374e68879be56971c1da563bcd90c)

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.8.11 (including) 5.9 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.10 (including) 6.1.7 (excluding)
cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools