Vulnerability Report

CVE-2002-0759

Title: bzip2 overwrites existing files without warning (no O_EXCL)

Other

Proof Of Concept

No public PoC currently indexed for CVE-2002-0759.

CWE Category NVD-CWE-noinfo

Published Date Aug 12, 2002

Modified Date Jun 16, 2026

Exploit Status Not Found

Score 5.0 CVSS v2.0

Exploit Probability (EPSS)

1.35%

Vulnerability Summary

CVE-2002-0759: 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.

Impacted Vendors

bzip 1

bzip2_project 1

Reference Links

ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-039.0.txt ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:25.bzip2.asc http://www.iss.net/security_center/static/9126.php http://www.securityfocus.com/bid/4774 ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-039.0.txt ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:25.bzip2.asc http://www.iss.net/security_center/static/9126.php http://www.securityfocus.com/bid/4774

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

5.0

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:N/I:P/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2002-0759 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 16, 2026 MODIFIED

Vulnerability data updated via NVD.

April 03, 2025 MODIFIED

Vulnerability data or affected products updated.

August 12, 2002 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A

Complexity N/A

Privileges N/A

Interaction NONE

CVSS Vector String


                                    AV:N/AC:L/Au:N/C:N/I:P/A:N

Affected Stack

No specific products linked.