CVE-2008-2009

Xiph.org libvorbis before 1.0 does not properly check for underpopulated Huffman trees, which allows remote attackers to cause a denial of service (crash) via a crafted OGG file that triggers memory corruption during execution of the _make_decode_tree function.

Published: 2008-05-16 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2008-2009 is rated Moderate Risk (48.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 4.34%). 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-2008-2009

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 3.61% 4.34% +0.73%
2 2025-03-29 4.34% 3.61% -0.73%
3 2025-03-17 — 4.34% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2008-2009

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-2008-2009

OS Trackers for CVE-2008-2009

vendor priority summary link
debian not yet assigned CVE-2008-2009 not yet assigned priority: Debian including 2 source packages (libvorbis, libvorbisidec), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. https://security-tracker.debian.org/tracker/CVE-2008-2009
redhat high — https://access.redhat.com/security/cve/CVE-2008-2009
ubuntu low CVE-2008-2009 low priority: Ubuntu including 1 source packages (libvorbis), 6 status rows across 6 suites (dapper, hardy, intrepid, jaunty, karmic, upstream): released 4, ignored 1, not-affected 1. https://ubuntu.com/security/CVE-2008-2009

NVD evaluator notes for CVE-2008-2009

Comment: Per http://svn.xiph.org/trunk/vorbis/CHANGES, 1.0 is the first stable release of libvorbis. No version of libvorbis before 1.0 has been confirmed at this time.

Affected software / configurations for CVE-2008-2009

Vendor Product Version Raw CPE
xiph.org libvorbis 1.0 cpe:2.3:a:xiph.org:libvorbis:1.0:beta4:*:*:*:*:*:*
xiph.org libvorbis 1.0 cpe:2.3:a:xiph.org:libvorbis:1.0:rc1:*:*:*:*:*:*
xiph.org libvorbis 1.0 cpe:2.3:a:xiph.org:libvorbis:1.0:rc2:*:*:*:*:*:*
canonical ubuntu_linux 8.04 cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 8.10 cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:*
canonical ubuntu_linux 9.04 cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:*
canonical ubuntu_linux 9.10 cpe:2.3:o:canonical:ubuntu_linux:9.10:*:*:*:*:*:*:*

References for CVE-2008-2009

cvelogic Threat Intelligence