Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2004-0644

16
FAUCET Score

CVE-2004-0644 describes a denial-of-service vulnerability in the asn1buf_skiptail function of the ASN.1 decoder library within MIT Kerberos 5 versions 1.2.2 through 1.3.4. A remote, unauthenticated attacker can exploit this by sending a specially crafted BER encoding, leading to an infinite loop. The CVSS score of 5.0 (AV:N/AC:L/Au:N/C:N/I:N/A:P) indicates a low-severity issue with potential for denial of service. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
1.2.2CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:1.2.2:*:*:*:*:*:*:*
1.2.3CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:1.2.3:*:*:*:*:*:*:*
1.2.4CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:1.2.4:*:*:*:*:*:*:*
1.2.5CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:1.2.5:*:*:*:*:*:*:*
1.2.6CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:1.2.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.58%
Probability of exploitation in next 30 days
EPSS Percentile
92.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0558 is in the 89th percentile among its peer group of 23,705 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: krb5-0:1.2.7-28
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux AS (Advanced Server) version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux ES version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux WS version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux Advanced Workstation 2.1
View patch

Vendor Advisories (1)

redhatCVE-2004-0644Important

security flaw

Aug 31, 2004

References

distro.conectiva.com.br / atualizacoes
marc.info
rhn.redhat.com / errata/RHSA-2004-350.html
exchange.xforce.ibmcloud.com / vulnerabilities/17160
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10014
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2139
web.mit.edu / kerberos/www/advisories/MITKRB5-SA-2004-003-asn1.txt
debian.org / security/2004/dsa-543
gentoo.org / security/en/glsa/glsa-200409-09.xml
PatchVendor Advisory
kb.cert.org / vuls/id/550464
US Government Resource
securityfocus.com / bid/11079
trustix.net / errata/2004/0045
PatchVendor Advisory
us-cert.gov / cas/techalerts/TA04-247A.html
US Government Resource