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Vulnerability Details : CVE-2005-0953

Race condition in bzip2 1.0.2 and earlier allows local users to modify permissions of arbitrary files via a hard link attack on a file while it is being decompressed, whose permissions are changed by bzip2 after the decompression is complete.
Publish Date : 2005-05-02 Last Update Date : 2018-10-19
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity High (Specialized access conditions exist. It is hard to exploit and several special conditions must be satisfied to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID CWE id is not defined for this vulnerability

- Vendor Statements

Red Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch.
Source: Redhat

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat low 2005-03-30 2005-03-30
If you are a vendor and you have additional data which can be automatically imported into our database, please contact admin @

- Related OVAL Definitions

Title Definition Id Class Family
bzip2 Arbitrary File Permission Modification Vulnerability oval:org.mitre.oval:def:1154 unix
Race condition in bzip2 1.0.2 and earlier allows local users to modify permissions of arbitrary files via a hard link at... oval:org.mitre.oval:def:10902 unix
RHSA-2005:474: bzip2 security update (Low) oval:com.redhat.rhsa:def:20050474 unix
RHSA-2005:474: bzip2 security update (Low) oval:com.redhat.rhsa:def:2005474 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2005-0953

# Product Type Vendor Product Version Update Edition Language
1 Application Bzip Bzip2 0.9 A Version Details Vulnerabilities
2 Application Bzip Bzip2 0.9 Version Details Vulnerabilities
3 Application Bzip Bzip2 0.9 B Version Details Vulnerabilities
4 Application Bzip Bzip2 0.9 C Version Details Vulnerabilities
5 Application Bzip Bzip2 0.9.5 C Version Details Vulnerabilities
6 Application Bzip Bzip2 0.9.5 D Version Details Vulnerabilities
7 Application Bzip Bzip2 0.9.5 A Version Details Vulnerabilities
8 Application Bzip Bzip2 0.9.5 B Version Details Vulnerabilities
9 Application Bzip Bzip2 1.0 Version Details Vulnerabilities
10 Application Bzip Bzip2 1.0.1 Version Details Vulnerabilities
11 Application Bzip Bzip2 1.0.2 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Bzip Bzip2 11

- References For CVE-2005-0953
VUPEN ADV-2007-3868
CERT TA07-319A
VUPEN ADV-2007-3525
BID 12954 bzip2 chmod File Permission Modification Race Condition Weakness Release Date:2008-07-02
BID 26444 Apple Mac OS X v10.4.11 2007-008 Multiple Security Vulnerabilities Release Date:2008-03-18
BUGTRAQ 20070109 rPSA-2007-0004-1 bzip2
OPENPKG OpenPKG-SA-2007.002
REDHAT RHSA-2005:474
APPLE APPLE-SA-2007-11-14
NETBSD NetBSD-SA2008-004
XF bzip2-toctou-symlink(19926)
SGI 20060301-01-U
BUGTRAQ 20050330 bzip2 TOCTOU file-permissions vulnerability

- Metasploit Modules Related To CVE-2005-0953

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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