CVE-2005-1260

bzip2 allows remote attackers to cause a denial of service (hard drive consumption) via a crafted bzip2 file that causes an infinite loop (a.k.a "decompression bomb").

Published: 2005-05-19 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2005-1260 is rated Moderate Risk (49.3/100): CVSS Medium severity, with high exploitation likelihood (EPSS 9.80%, 92th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2005-1260

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 12.74% 9.80% -2.94%
2 2025-03-29 9.80% 12.74% +2.94%
3 2025-03-17 — 9.80% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2005-1260

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2005-1260

OS Trackers for CVE-2005-1260

vendor priority summary link
debian not yet assigned CVE-2005-1260 not yet assigned priority: Debian including 1 source packages (bzip2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2005-1260
redhat low — https://access.redhat.com/security/cve/CVE-2005-1260
ubuntu medium CVE-2005-1260 medium priority: Ubuntu including 1 source packages (bzip2), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 3, needs-triage 1. https://ubuntu.com/security/CVE-2005-1260

Affected software / configurations for CVE-2005-1260

Vendor Product Version Raw CPE
bzip bzip2 < 1.0.3 cpe:2.3:a:bzip:bzip2:*:*:*:*:*:*:*:*
canonical ubuntu_linux 4.10 cpe:2.3:o:canonical:ubuntu_linux:4.10:*:*:*:*:*:*:*
canonical ubuntu_linux 5.04 cpe:2.3:o:canonical:ubuntu_linux:5.04:*:*:*:*:*:*:*
debian debian_linux 3.0 cpe:2.3:o:debian:debian_linux:3.0:*:*:*:*:*:*:*
debian debian_linux 3.1 cpe:2.3:o:debian:debian_linux:3.1:*:*:*:*:*:*:*
apple mac_os_x < 10.4.11 cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*

References for CVE-2005-1260

URL Tags
ftp://patches.sgi.com/support/free/security/advisories/20060301-01.U.asc Broken Link
http://docs.info.apple.com/article.html?artnum=307041 Broken Link
http://lists.apple.com/archives/security-announce/2007/Nov/msg00002.html Mailing List Third Party Advisory
http://secunia.com/advisories/15447 Third Party Advisory
http://secunia.com/advisories/19183 Third Party Advisory
http://secunia.com/advisories/27274 Third Party Advisory
http://secunia.com/advisories/27643 Third Party Advisory
http://sunsolve.sun.com/search/document.do?assetkey=1-26-103118-1 Broken Link
http://sunsolve.sun.com/search/document.do?assetkey=1-66-200191-1 Broken Link
http://www.debian.org/security/2005/dsa-741 Third Party Advisory
http://www.fedoralegacy.org/updates/FC2/2005-11-14-FLSA_2005_158801__Updated_bzip2_packages_fix_security_issues.html Permissions Required
http://www.redhat.com/support/errata/RHSA-2005-474.html Third Party Advisory
http://www.securityfocus.com/bid/13657 Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/26444 Third Party Advisory VDB Entry
http://www.us-cert.gov/cas/techalerts/TA07-319A.html Third Party Advisory US Government Resource
http://www.vupen.com/english/advisories/2007/3525 Permissions Required
http://www.vupen.com/english/advisories/2007/3868 Permissions Required
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10700 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A749 Third Party Advisory
https://usn.ubuntu.com/127-1/ Third Party Advisory
cvelogic Threat Intelligence