bzip2 before 1.0.2 in FreeBSD 4.5 and earlier, OpenLinux 3.1 and 3.1.1, and possibly…
Priority LOW 26Published · 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 · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
bzip2 before 1.0.2 in FreeBSD 4.5 and earlier, OpenLinux 3.1 and 3.1.1, and possibly other operating systems, does not use the O_EXCL flag to create files during decompression and does not warn the user if an existing file would be overwritten, which could allow attackers to overwrite files via a bzip2 archive.
Why it matters now
EPSS 0.01348 71st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:bzip:bzip2:0.9.0:*:*:*:*:*:*:* | 0.9.0 | Vulnerable | Bzip |
| cpe:2.3:a:bzip:bzip2:0.9.0a:*:*:*:*:*:*:* | 0.9.0a | Vulnerable | Bzip |
| cpe:2.3:a:bzip:bzip2:0.9.0b:*:*:*:*:*:*:* | 0.9.0b | Vulnerable | Bzip |
| cpe:2.3:a:bzip:bzip2:0.9.0c:*:*:*:*:*:*:* | 0.9.0c | Vulnerable | Bzip |
| cpe:2.3:a:bzip:bzip2:0.9.5a:*:*:*:*:*:*:* | 0.9.5a | Vulnerable | Bzip |
| cpe:2.3:a:bzip:bzip2:0.9.5b:*:*:*:*:*:*:* | 0.9.5b | Vulnerable | Bzip |
| cpe:2.3:a:bzip:bzip2:0.9.5c:*:*:*:*:*:*:* | 0.9.5c | Vulnerable | Bzip |
| cpe:2.3:a:bzip:bzip2:0.9.5d:*:*:*:*:*:*:* | 0.9.5d | Vulnerable | Bzip |
| cpe:2.3:a:bzip:bzip2:1.0:*:*:*:*:*:*:* | 1.0 | Vulnerable | Bzip |
| cpe:2.3:a:bzip:bzip2:1.0.1:*:*:*:*:*:*:* | 1.0.1 | Vulnerable | Bzip |
- cpe:2.3:a:bzip:bzip2:0.9.0:*:*:*:*:*:*:* Versions 0.9.0 Vulnerable ·Bzip
- cpe:2.3:a:bzip:bzip2:0.9.0a:*:*:*:*:*:*:* Versions 0.9.0a Vulnerable ·Bzip
- cpe:2.3:a:bzip:bzip2:0.9.0b:*:*:*:*:*:*:* Versions 0.9.0b Vulnerable ·Bzip
- cpe:2.3:a:bzip:bzip2:0.9.0c:*:*:*:*:*:*:* Versions 0.9.0c Vulnerable ·Bzip
- cpe:2.3:a:bzip:bzip2:0.9.5a:*:*:*:*:*:*:* Versions 0.9.5a Vulnerable ·Bzip
- cpe:2.3:a:bzip:bzip2:0.9.5b:*:*:*:*:*:*:* Versions 0.9.5b Vulnerable ·Bzip
- cpe:2.3:a:bzip:bzip2:0.9.5c:*:*:*:*:*:*:* Versions 0.9.5c Vulnerable ·Bzip
- cpe:2.3:a:bzip:bzip2:0.9.5d:*:*:*:*:*:*:* Versions 0.9.5d Vulnerable ·Bzip
- cpe:2.3:a:bzip:bzip2:1.0:*:*:*:*:*:*:* Versions 1.0 Vulnerable ·Bzip
- cpe:2.3:a:bzip:bzip2:1.0.1:*:*:*:*:*:*:* Versions 1.0.1 Vulnerable ·Bzip
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2002-0759
- 2026-10-03 Alias added: GHSA-g25w-q4r5-m36r
References
More Bzip2 vulnerabilities
- TI-2019-09657 BZ2_decompress in decompress.c in bzip2 through 1.0.6 has an out-of-bounds write when there are many selectors. CVSS 3.1CRITICAL 9.8
- TI-2016-02675 Use-after-free vulnerability in bzip2recover in bzip2 1.0.6 allows remote attackers to… CVSS 3.1MEDIUM 6.5
- TI-2005-01190 bzip2 allows remote attackers to cause a denial of service (hard drive consumption) via a… CVSS 2.0MEDIUM 5.0
- TI-2010-00384 Integer overflow in the BZ2_decompress function in decompress.c in bzip2 and libbzip2… CVSS 2.0MEDIUM 5.1
- TI-2008-01321 bzlib.c in bzip2 before 1.0.5 allows user-assisted remote attackers to cause a denial of… CVSS 2.0MEDIUM 4.3
- TI-2011-03607 The bzexe command in bzip2 1.0.5 and earlier generates compressed executables that do not… CVSS 2.0MEDIUM 4.6
Sources
- CVE-2002-0759 · CVE Program
- CVE-2002-0759 · NVD
- FIRST EPSS
- GHSA-g25w-q4r5-m36r · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences