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NVD / CVE Program· CNA Linux

CVE-2023-52819: drm/amd: Fix UBSAN array-index-out-of-bounds for Polaris and Tonga

Noroxi assessment

Priority: Monitor (action score 26/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.24% (FIRST EPSS).
  • 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.
  • Fixed version: Linux Linux 0f0e59075b5c22f1e871fbd508d6e4f495048356, 60a00dfc7c5deafd1dd393beaf53224f7256dad6, 7c68283f3166221af3df5791f0e13d3137a72216.

Low priority for now. Upgrade to Linux Linux 0f0e59075b5c22f1e871fbd508d6e4f495048356, 60a00dfc7c5deafd1dd393beaf53224f7256dad6, 7c68283f3166221af3df5791f0e13d3137a72216 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: drm/amd: Fix UBSAN array-index-out-of-bounds for Polaris and Tonga For pptable structs that use flexible array sizes, use flexible arrays.

MediumCVSS 6.6 · v3.1—No exploit Fix available
Published
May 21, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 15th percentile

Report tools

JSON

Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.6 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2023-52819

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

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 kernelbefore 4.14.331
  • linux linux kernel4.15 and later · before 4.19.300
  • linux linux kernel4.20 and later · before 5.4.262
  • linux linux kernel5.5 and later · before 5.10.202
  • linux linux kernel5.11 and later · before 5.15.140
  • linux linux kernel5.16 and later · before 6.1.64
  • linux linux kernel6.2 and later · before 6.5.13
  • linux linux kernel6.6 and later · before 6.6.3

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

    • 4.5affected
    • c82baa28184356a75c0157129f88af42b2e7b695 and later · before 60a00dfc7c5deafd1dd393beaf53224f7256dad6affected · git
    • c82baa28184356a75c0157129f88af42b2e7b695 and later · before a63fd579e7b1c3a9ebd6e6c494d49b1b6cf5515eaffected · git
    • c82baa28184356a75c0157129f88af42b2e7b695 and later · before d50a56749e5afdc63491b88f5153c1aae00d4679affected · git
    • c82baa28184356a75c0157129f88af42b2e7b695 and later · before 8c1dbddbfcb051e82cea0c197c620f9dcdc38e92affected · git
    • c82baa28184356a75c0157129f88af42b2e7b695 and later · before a237675aa1e62bbfaa341c535331c8656a508fa1affected · git
    • c82baa28184356a75c0157129f88af42b2e7b695 and later · before d0725232da777840703f5f1e22f2e3081d712aa4affected · git
    • c82baa28184356a75c0157129f88af42b2e7b695 and later · before 7c68283f3166221af3df5791f0e13d3137a72216affected · git
    • c82baa28184356a75c0157129f88af42b2e7b695 and later · before b3b8b7c040cf069da7afe11c5bd73b870b8f3d18affected · git
    • c82baa28184356a75c0157129f88af42b2e7b695 and later · before 0f0e59075b5c22f1e871fbd508d6e4f495048356affected · 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
SUSE:Linux Enterprise Real Time 12 SP5kernel-rtbefore 4.12.14-10.194.14.12.14-10.194.1
SUSE:Linux Enterprise Real Time 12 SP5kernel-rt_debugbefore 4.12.14-10.194.14.12.14-10.194.1
SUSE:Linux Enterprise Real Time 12 SP5kernel-source-rtbefore 4.12.14-10.194.14.12.14-10.194.1
SUSE:Linux Enterprise Real Time 12 SP5kernel-syms-rtbefore 4.12.14-10.194.14.12.14-10.194.1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • 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

Published before and after this one in the same product

  • ← EarlierCVE-2023-52817May 21, 2024 · drm/amdgpu: Fix a null pointer access when the smc_rreg pointer is NULL
    22Monitor
  • ← EarlierCVE-2023-52818May 21, 2024 · drm/amd: Fix UBSAN array-index-out-of-bounds for SMU7
    31Monitor
  • Later →CVE-2023-52821May 21, 2024 · drm/panel: fix a possible null pointer dereference
    22Monitor

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 Linux0f0e59075b5c22f1e871fbd508d6e4f495048356Vendor (CNA)
Linux Linux60a00dfc7c5deafd1dd393beaf53224f7256dad6Vendor (CNA)
Linux Linux7c68283f3166221af3df5791f0e13d3137a72216Vendor (CNA)
Linux Linux8c1dbddbfcb051e82cea0c197c620f9dcdc38e92Vendor (CNA)
Linux Linuxa237675aa1e62bbfaa341c535331c8656a508fa1Vendor (CNA)
Linux Linuxa63fd579e7b1c3a9ebd6e6c494d49b1b6cf5515eVendor (CNA)
Linux Linuxb3b8b7c040cf069da7afe11c5bd73b870b8f3d18Vendor (CNA)
Linux Linuxd0725232da777840703f5f1e22f2e3081d712aa4Vendor (CNA)
Linux Linuxd50a56749e5afdc63491b88f5153c1aae00d4679Vendor (CNA)
debian:linux6.1.64-1 · Debian:12Package registry (OSV)
suse:kernel-rt4.12.14-10.194.1 · SUSE:Linux Enterprise Real Time 12 SP5Package registry (OSV)
suse:kernel-rt_debug4.12.14-10.194.1 · SUSE:Linux Enterprise Real Time 12 SP5Package registry (OSV)
suse:kernel-source-rt4.12.14-10.194.1 · SUSE:Linux Enterprise Real Time 12 SP5Package registry (OSV)
suse:kernel-syms-rt4.12.14-10.194.1 · SUSE:Linux Enterprise Real Time 12 SP5Package 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.

  • CVE-2021-475483 days apartethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()
    39Monitor
  • CVE-2023-2008403 days apartKernel: udmabuf: improper validation of array index leading to local privilege escalation
    32Monitor
  • CVE-2023-528040 days apartfs/jfs: Add validity check for db_maxag and db_agpref
    31Monitor
  • CVE-2023-528050 days apartjfs: fix array-index-out-of-bounds in diAlloc
    31Monitor
  • CVE-2023-528120 days apartdrm/amd: check num of link levels when update pcie param
    31Monitor
  • CVE-2023-528180 days apartdrm/amd: Fix UBSAN array-index-out-of-bounds for SMU7
    31Monitor

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
low · data can be read
Integrity
low · 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
Low
Integrity impact
Low
Availability impact
High

Weakness class (CWE)

CWE-129 · Improper Validation of Array Index

CVSS vector

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

nvd-secondary

Attack context

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

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

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

References

Show all references (8 more)

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

All records