CVE-2002-0760

Description

Race condition in bzip2 before 1.0.2 in FreeBSD 4.5 and earlier, OpenLinux 3.1 and 3.1.1, and possibly other operating systems, decompresses files with world-readable permissions before setting the permissions to what is specified in the bzip2 archive, which could allow local users to read the files as they are being decompressed.

Affected products

• bzip / bzip20.9.0 – 0.9.0
• bzip / bzip20.9.0a – 0.9.0a
• bzip / bzip20.9.0b – 0.9.0b
• bzip / bzip20.9.0c – 0.9.0c
• bzip / bzip20.9.5a – 0.9.5a
• bzip / bzip20.9.5b – 0.9.5b
• bzip / bzip20.9.5c – 0.9.5c
• bzip / bzip20.9.5d – 0.9.5d
• bzip / bzip21.0 – 1.0
• bzip / bzip21.0.1 – 1.0.1

References

• MISChttp://www.iss.net/security_center/static/9127.php
• MISCftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-039.0.txt
• MISChttp://www.securityfocus.com/bid/4775
• VENDOR_ADVISORYftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:25.bzip2.asc