Security readout for executives and security teams
Plain-English summary
CVE-2023-52601 is a Linux kernel flaw in the JFS filesystem code. A missing bounds check can cause out-of-bounds array access. It is rated high because a local user could potentially affect confidentiality, integrity, and availability. It is not listed in KEV, and the provided sources do not show active exploitation.
Executive priority
Treat as a high-priority kernel maintenance item, especially on shared Linux servers, developer hosts, and container or workload platforms with local users. It is not currently supported by sources as an internet-exploited emergency, but kernel privilege-impact bugs deserve timely patching.
Technical view
The issue is CWE-129 in jfs dbAdjTree, where dmt_stree access lacked a required bounds check. The Linux fix adds logic to determine the correct size before access. CVSS 3.1 is 7.8: local attack vector, low complexity, low privileges, no user interaction, with high CIA impact.
Likely exposure
Exposure is mainly Linux systems running affected kernels with JFS filesystem support reachable by local users. Remote-only services are less directly exposed unless an attacker already has local code execution or account access. Distribution backports may change version-based assessment.
Exploitation context
The CVE record indicates local, low-privilege exploitation conditions. The source bundle includes kernel stable fixes and Debian LTS advisories, but no KEV listing or cited evidence of exploitation in the wild. No exploit maturity claims should be made from these sources.
Researcher notes
The affected component is JFS dbAdjTree bounds handling. The CVE affected data lists broad Linux kernel version ranges and multiple stable commit references. Because distributions backport fixes, validate by vendor package metadata or commit presence rather than raw kernel version alone.
Mitigation direction
- Apply Linux kernel updates that include the referenced stable JFS fix.
- Use distribution security advisories, not only upstream version numbers, to confirm remediation.
- Prioritize multi-user Linux systems and systems where untrusted users have shell or workload access.
- For Debian LTS, review the cited Debian advisories and install the relevant kernel updates.
Validation and detection
- Inventory Linux kernel versions and distribution kernel package levels.
- Check whether installed kernels include the referenced upstream stable commit or distro backport.
- Identify systems with JFS support or JFS filesystems in use.
- Confirm vulnerability scanner findings against vendor advisories and kernel changelogs.
- Verify reboot into the remediated kernel after patch installation.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-129: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2023-52601 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/3d3898b4d72c677d47fe3cb554449f2df5c12555CVE reference, Linux
- https://git.kernel.org/stable/c/3f8217c323fd6ecd6829a0c3ae7ac3f14eac368eCVE reference, Linux
- https://git.kernel.org/stable/c/2037cb9d95f1741885f7daf50e8a028c4ade5317CVE reference, Linux
- https://git.kernel.org/stable/c/8393c80cce45f40c1256d72e21ad351b3650c57eCVE reference, Linux
- https://git.kernel.org/stable/c/70780914cb57e2ba711e0ac1b677aaaa75103603CVE reference, Linux
- https://git.kernel.org/stable/c/2e16a1389b5a7983b45cb2aa20b0e3f0ee364d6cCVE reference, Linux
- https://git.kernel.org/stable/c/fc67a2e18f4c4e3f07e9f9ae463da24530470e73CVE reference, Linux
- https://git.kernel.org/stable/c/74ecdda68242b174920fe7c6133a856fb7d8559bCVE reference, Linux
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlCVE reference, CVE · x_transferred
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.htmlCVE reference, CVE · x_transferred
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Validation of Array Index
Improper Validation of Array Index represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.