The hfsplus_block_allocate function in fs/hfsplus/bitmap.c in the Linux kernel before…
Priority MEDIUM 40CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
The hfsplus_block_allocate function in fs/hfsplus/bitmap.c in the Linux kernel before 2.6.28-rc1 does not check a certain return value from the read_mapping_page function before calling kmap, which allows attackers to cause a denial of service (system crash) via a crafted hfsplus filesystem image.
Why it matters now
EPSS 0.03294 88th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | before 2.6.28 | Vulnerable | Linux |
| cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Debian |
| cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:lts:*:*:* | 6.06 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:7.10:*:*:*:*:*:*:* | 7.10 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:lts:*:*:* | 8.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:* | 8.10 | Vulnerable | Canonical |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 2.6.28 Vulnerable ·Linux
- cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Debian
- cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:lts:*:*:* Versions 6.06 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:7.10:*:*:*:*:*:*:* Versions 7.10 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:lts:*:*:* Versions 8.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:* Versions 8.10 Vulnerable ·Canonical
Remediation
Red Hat 2 advisories
- RHSA-2009:0264 Released 2009-02-10 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-128.1.1.el5, kernel-2.6.18-128.1.1.el5.ia64, kernel-PAE-2.6.18-128.1.1.el5 +18
- Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-128.1.1.el5, kernel-PAE-2.6.18-128.1.1.el5, kernel-PAE-devel-2.6.18-128.1.1.el5 +8
- RHSA-2009:0014 Released 2009-01-14 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux AS version 4 kernel-2.6.9-78.0.13.EL, kernel-2.6.9-78.0.13.EL.ia64, kernel-2.6.9-78.0.13.EL.ppc64iseries +14
- Red Hat Enterprise Linux Desktop version 4 kernel-2.6.9-78.0.13.EL, kernel-devel-2.6.9-78.0.13.EL, kernel-doc-2.6.9-78.0.13.EL +8
- Red Hat Enterprise Linux ES version 4 kernel-2.6.9-78.0.13.EL, kernel-2.6.9-78.0.13.EL.ia64, kernel-devel-2.6.9-78.0.13.EL +12
- Red Hat Enterprise Linux WS version 4 kernel-2.6.9-78.0.13.EL, kernel-2.6.9-78.0.13.EL.ia64, kernel-devel-2.6.9-78.0.13.EL +12
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2009:0264 |
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2009:0014 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2009:0264 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2009:0014 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2009:0014 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2009:0014 |
Timeline
- 2026-10-02 Threatist record created from CVE-2008-4934
- 2026-10-03 Alias added: GHSA-5hf7-wh5w-w87p
References
Patch 1
Advisory 8
Sources
- CVE-2008-4934 · CVE Program
- CVE-2008-4934 · NVD
- FIRST EPSS
- GHSA-5hf7-wh5w-w87p · GitHub Advisory Database · CC BY 4.0
- CVE-2008-4934 · Red Hat security data · CC BY 4.0
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