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CVE-2023-52867· NVD / CVE Program· CNA Linux

drm/radeon: possible buffer overflow

In the Linux kernel, the following vulnerability has been resolved: drm/radeon: possible buffer overflow Buffer 'afmt_status' of size 6 could overflow, since index 'afmt_idx' is checked after access.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
May 21, 2024
Updated
Aug 5, 2026
EPSS
0.3% · 15th percentile
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Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
7.8
CNA · Linux
7.1
0.7 point gap

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel4.13 and later · before 4.14.330
  • linux linux kernel4.15 and later · before 4.19.299
  • linux linux kernel4.20 and later · before 5.4.261
  • linux linux kernel5.5 and later · before 5.10.201
  • linux linux kernel5.11 and later · before 5.15.139
  • linux linux kernel5.16 and later · before 6.1.63
  • linux linux kernel6.2 and later · before 6.5.12
  • linux linux kernel6.6 and later · before 6.6.2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 4.13affected
    • 5cc4e5fc293bfe2634535f544427e8c6061492a5 and later · before 112d4b02d94bf9fa4f1d3376587878400dd74783affected · git
    • 5cc4e5fc293bfe2634535f544427e8c6061492a5 and later · before caaa74541459c4c9e2c10046cf66ad2890483d0faffected · git
    • 5cc4e5fc293bfe2634535f544427e8c6061492a5 and later · before ddc42881f170f1f518496f5a70447501335fc783affected · git
    • 5cc4e5fc293bfe2634535f544427e8c6061492a5 and later · before 7b063c93bece827fde237fae1c101bceeee4e896affected · git
    • 5cc4e5fc293bfe2634535f544427e8c6061492a5 and later · before 347f025a02b3a5d715a0b471fc3b1439c338ad94affected · git
    • 5cc4e5fc293bfe2634535f544427e8c6061492a5 and later · before 341e79f8aec6af6b0061b8171d77b085835c6a58affected · git
    • 5cc4e5fc293bfe2634535f544427e8c6061492a5 and later · before d9b4fa249deaae1145d6fc2b64dae718e5c7a855affected · git
    • 5cc4e5fc293bfe2634535f544427e8c6061492a5 and later · before 19534a7a225f1bf2da70a9a90d41d0215f8f6b45affected · git
    • 5cc4e5fc293bfe2634535f544427e8c6061492a5 and later · before dd05484f99d16715a88eedfca363828ef9a4c2d4affected · git

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.64-16.1.64-1
Debian:13linuxbefore 6.6.8-16.6.8-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now
  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now
  • CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV
    77This week
  • CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV
    77This week
  • CVE-2013-2094The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows loKEV
    77This week

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux112d4b02d94bf9fa4f1d3376587878400dd74783Vendor (CNA)
Linux Linux19534a7a225f1bf2da70a9a90d41d0215f8f6b45Vendor (CNA)
Linux Linux341e79f8aec6af6b0061b8171d77b085835c6a58Vendor (CNA)
Linux Linux347f025a02b3a5d715a0b471fc3b1439c338ad94Vendor (CNA)
Linux Linux7b063c93bece827fde237fae1c101bceeee4e896Vendor (CNA)
Linux Linuxcaaa74541459c4c9e2c10046cf66ad2890483d0fVendor (CNA)
Linux Linuxd9b4fa249deaae1145d6fc2b64dae718e5c7a855Vendor (CNA)
Linux Linuxdd05484f99d16715a88eedfca363828ef9a4c2d4Vendor (CNA)
Linux Linuxddc42881f170f1f518496f5a70447501335fc783Vendor (CNA)
debian:linux6.1.64-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-787 · Out-of-bounds Write

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records