Buildroot before 0b2967e lacks the sticky bit for the /dev/shm directory.
Priority MEDIUM 40CWE-276Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
Buildroot before 0b2967e lacks the sticky bit for the /dev/shm directory. A fix was released in 2024.02.2.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00657 51st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-34455
- 2026-10-03 Alias added: GHSA-m6xf-rg25-42wc
- 2026-10-11 EPSS moved to the 50th–90th percentile
References
Other 5
- https://www.openwall.com/lists/oss-security/2024/04/11/13
- https://github.com/buildroot/buildroot/commit/0b2967e15800421efbdfe3a7a6061cf6bd84134d
- [oss-security] 20240506 Re: Buildroot: incorrect permissons on /dev/shm
- [oss-security] 20240506 Re: [Buildroot] Buildroot: incorrect permissons on /dev/shm
- [oss-security] 20240507 Re: Buildroot: incorrect permissons on /dev/shm
Sources
- CVE-2024-34455 · CVE Program
- CVE-2024-34455 · NVD
- FIRST EPSS
- GHSA-m6xf-rg25-42wc · GitHub Advisory Database · CC BY 4.0
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