CVE-2009-1884

Off-by-one error in the bzinflate function in Bzip2.xs in the Compress-Raw-Bzip2 module before 2.018 for Perl allows context-dependent attackers to cause a denial of service (application hang or crash) via a crafted bzip2 compressed stream that triggers a buffer overflow, a related issue to CVE-2009-1391.

Published: 2009-08-19 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-1884 is rated Moderate Risk (44.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.26%). Review affected assets and schedule 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-2009-1884

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 2025-12-28 1.17% 1.26% +0.10%
2 2025-12-27 1.26% 1.17% -0.10%
3 2025-10-28 — 1.26% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-1884

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/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:M)
Exploitation needs some favorable conditions, but not exceptional ones.
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.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2009-1884

OS Trackers for CVE-2009-1884

vendor priority summary link
debian medium CVE-2009-1884 medium priority: Debian including 1 source packages (libcompress-raw-bzip2-perl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2009-1884
gentoo normal CVE-2009-1884: 1 GLSA(s) (200908-07), 2 atom(s) (perl-core/Compress-Raw-Bzip2, perl-core/Compress-Raw-Zlib); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2009-1884
redhat medium — https://access.redhat.com/security/cve/CVE-2009-1884
ubuntu medium CVE-2009-1884 medium priority: Ubuntu including 1 source packages (libcompress-raw-bzip2-perl), 8 status rows across 8 suites (dapper, hardy, intrepid, jaunty, karmic, lucid, maverick, upstream): not-affected 3, DNE 2, ignored 2, released 1. https://ubuntu.com/security/CVE-2009-1884

Affected software / configurations for CVE-2009-1884

Vendor Product Version Raw CPE
bzip compress-raw-bzip2 <= 2.017 cpe:2.3:a:bzip:compress-raw-bzip2:*:*:*:*:*:*:*:*
bzip compress-raw-bzip2 2.0.00_10 cpe:2.3:a:bzip:compress-raw-bzip2:2.0.00_10:*:*:*:*:*:*:*
bzip compress-raw-bzip2 2.0.00_12 cpe:2.3:a:bzip:compress-raw-bzip2:2.0.00_12:*:*:*:*:*:*:*
bzip compress-raw-bzip2 2.0.00_14 cpe:2.3:a:bzip:compress-raw-bzip2:2.0.00_14:*:*:*:*:*:*:*
bzip compress-raw-bzip2 2.0.01 cpe:2.3:a:bzip:compress-raw-bzip2:2.0.01:*:*:*:*:*:*:*
bzip compress-raw-bzip2 2.0.02 cpe:2.3:a:bzip:compress-raw-bzip2:2.0.02:*:*:*:*:*:*:*
bzip compress-raw-bzip2 2.0.03 cpe:2.3:a:bzip:compress-raw-bzip2:2.0.03:*:*:*:*:*:*:*
bzip compress-raw-bzip2 2.0.05 cpe:2.3:a:bzip:compress-raw-bzip2:2.0.05:*:*:*:*:*:*:*
bzip compress-raw-bzip2 2.0.06 cpe:2.3:a:bzip:compress-raw-bzip2:2.0.06:*:*:*:*:*:*:*
bzip compress-raw-bzip2 2.0.08 cpe:2.3:a:bzip:compress-raw-bzip2:2.0.08:*:*:*:*:*:*:*
bzip compress-raw-bzip2 2.0.09 cpe:2.3:a:bzip:compress-raw-bzip2:2.0.09:*:*:*:*:*:*:*
bzip compress-raw-bzip2 2.010 cpe:2.3:a:bzip:compress-raw-bzip2:2.010:*:*:*:*:*:*:*
bzip compress-raw-bzip2 2.011 cpe:2.3:a:bzip:compress-raw-bzip2:2.011:*:*:*:*:*:*:*
bzip compress-raw-bzip2 2.012 cpe:2.3:a:bzip:compress-raw-bzip2:2.012:*:*:*:*:*:*:*
bzip compress-raw-bzip2 2.014 cpe:2.3:a:bzip:compress-raw-bzip2:2.014:*:*:*:*:*:*:*
bzip compress-raw-bzip2 2.015 cpe:2.3:a:bzip:compress-raw-bzip2:2.015:*:*:*:*:*:*:*

References for CVE-2009-1884

cvelogic Threat Intelligence