Security readout for executives and security teams
Plain-English summary
CVE-2024-58058 is a Linux kernel availability bug in UBIFS. A local, low-privileged user could trigger a null pointer dereference after slab cache clearing leaves the UBIFS root znode null. The documented impact is denial of service, not data theft or privilege escalation.
Executive priority
Treat as a moderate availability risk. It is unlikely to drive emergency internet-wide response, but it can crash affected systems from local access. Patch through normal kernel maintenance, with higher urgency for appliances or shared environments where downtime matters.
Technical view
The flaw is CWE-476 in UBIFS TNC tree dumping. When all in-memory znodes are freed, c->zroot.znode can become NULL. The vulnerable dump path dereferences that NULL pointer, causing a kernel crash. CVSS 3.1 is 5.5: local access, low complexity, low privileges, no user interaction, availability high.
Likely exposure
Exposure is limited to Linux systems running affected kernel builds where UBIFS code paths are present and reachable by a local low-privileged user. Appliances and vendor-maintained Linux distributions should be checked against their advisories and kernel package versions.
Exploitation context
The source bundle does not report active exploitation, and KEV is false. The CVSS vector indicates local, authenticated exploitation with availability impact only. No source provided evidence of remote exploitation, confidentiality loss, integrity loss, or privilege escalation.
Researcher notes
The record names multiple Linux stable commits and Debian LTS advisories. The bundle does not provide full affected-version range semantics beyond listed Linux affected entries, so version conclusions should be validated against distro backports and vendor advisories.
Mitigation direction
- Update to vendor kernel packages containing the UBIFS fix.
- Track Debian LTS and device vendor advisories for backported fixes.
- For appliances, apply Siemens or vendor firmware updates when available.
- If immediate patching is impossible, restrict local shell access to affected systems.
Validation and detection
- Inventory Linux kernels and identify systems using UBIFS.
- Compare kernel package versions with vendor security advisories.
- Confirm the relevant stable kernel fix is included or backported.
- Prioritize validation on shared systems and managed appliances.
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-476: 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-2024-58058 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
- Medium
- CVSS
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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:N/I:N/A:H1.83.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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/428aff8f7cfb0d9a8854477648022cef96bcab28CVE reference, Linux
- https://git.kernel.org/stable/c/6211c11fc20424bbc6d79c835c7c212b553ae898CVE reference, Linux
- https://git.kernel.org/stable/c/1787cd67bb94b106555ffe64f887f6aa24b47010CVE reference, Linux
- https://git.kernel.org/stable/c/e01b55f261ccc96e347eba4931e4429d080d879dCVE reference, Linux
- https://git.kernel.org/stable/c/40e25a3c0063935763717877bb2a814c081509ffCVE reference, Linux
- https://git.kernel.org/stable/c/77e5266e3d3faa6bdcf20d9c68a8972f6aa06522CVE reference, Linux
- https://git.kernel.org/stable/c/2a987950df825d0144370e700dc5fb337684ffbaCVE reference, Linux
- https://git.kernel.org/stable/c/bdb0ca39e0acccf6771db49c3f94ed787d05f2d7CVE reference, Linux
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.htmlCVE reference, CVE
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.htmlCVE reference, CVE
- https://cert-portal.siemens.com/productcert/html/ssa-265688.htmlCVE reference, siemens-SADP
- https://cert-portal.siemens.com/productcert/html/ssa-019113.htmlCVE reference, siemens-SADP
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.
NULL Pointer Dereference
NULL Pointer Dereference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.