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NVD / CVE Program· CNA Linux

CVE-2023-52799: jfs: fix array-index-out-of-bounds in dbFindLeaf

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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: 0.25% (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 20f9310a18e3e99fc031e036fcbed67105ae1859, 22cad8bc1d36547cdae0eef316c47d917ce3147c, 81aa58cd8495b8c3b527f58ccbe19478d8087f61.

Low priority for now. Upgrade to Linux Linux 20f9310a18e3e99fc031e036fcbed67105ae1859, 22cad8bc1d36547cdae0eef316c47d917ce3147c, 81aa58cd8495b8c3b527f58ccbe19478d8087f61 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: jfs: fix array-index-out-of-bounds in dbFindLeaf Currently while searching for dmtree_t for sufficient free blocks there is an array out of bounds while getting element in tp->dm_stree. To add the required check for out of bound we first need to determine the type of dmtree. Thus added an extra parameter to dbFindLeaf so that the type of tree can be determined and the required check can be applied.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
May 21, 2024
Updated
Aug 5, 2026
EPSS
0.2% · 17th percentile

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 · 0.2%

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
7.8
agree

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

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-2023-52799

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

    • 2.6.12affected
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 20f9310a18e3e99fc031e036fcbed67105ae1859affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 86df90f3fea7c5591f05c8a0010871d435e83046affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before ecfb47f13b08b02cf28b7b50d4941eefa21954d2affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 81aa58cd8495b8c3b527f58ccbe19478d8087f61affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before da3da5e1e6f71c21d8e6149d7076d936ef5d4cb9affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before a50b796d36719757526ee094c703378895ab5e67affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 88b7894a8f8705bf4e7ea90b10229376abf14514affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 87c681ab49e99039ff2dd3e71852417381b13878affected · git
    • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 22cad8bc1d36547cdae0eef316c47d917ce3147caffected · 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-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-2023-52797May 21, 2024 · drivers: perf: Check find_first_bit() return value
    22Monitor
  • ← EarlierCVE-2023-52798May 21, 2024 · wifi: ath11k: fix dfs radar event locking
    35Monitor
  • Later →CVE-2023-52800May 21, 2024 · wifi: ath11k: fix htt pktlog locking
    17Monitor

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 Linux20f9310a18e3e99fc031e036fcbed67105ae1859Vendor (CNA)
Linux Linux22cad8bc1d36547cdae0eef316c47d917ce3147cVendor (CNA)
Linux Linux81aa58cd8495b8c3b527f58ccbe19478d8087f61Vendor (CNA)
Linux Linux86df90f3fea7c5591f05c8a0010871d435e83046Vendor (CNA)
Linux Linux87c681ab49e99039ff2dd3e71852417381b13878Vendor (CNA)
Linux Linux88b7894a8f8705bf4e7ea90b10229376abf14514Vendor (CNA)
Linux Linuxa50b796d36719757526ee094c703378895ab5e67Vendor (CNA)
Linux Linuxda3da5e1e6f71c21d8e6149d7076d936ef5d4cb9Vendor (CNA)
Linux Linuxecfb47f13b08b02cf28b7b50d4941eefa21954d2Vendor (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.

No history yet (it accumulates with the daily EPSS job).

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-2023-528050 days apartjfs: fix array-index-out-of-bounds in diAlloc
    31Monitor
  • CVE-2023-528070 days apartnet: hns3: fix out-of-bounds access may occur when coalesce info is read via debugfs
    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
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-129 · Improper Validation of Array Index

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.

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