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CVE-2004-0643

16
FAUCET Score

CVE-2004-0643 describes a double free vulnerability in the krb5_rd_cred function of MIT Kerberos 5 (krb5) versions 1.3.1 and earlier, impacting products like Debian, MIT, and Red Hat. This vulnerability has a CVSS score of 4.6, indicating a local attack vector with low complexity, potentially leading to partial confidentiality, integrity, and availability compromise through arbitrary code execution. There is no evidence of active exploitation, no known exploit code in Metasploit, Nuclei, or ExploitDB, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.3.3CPE matchmatch criteria
cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:3.0:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:3.0:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server:3.0:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_workstation:3.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.6MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.43%
Probability of exploitation in next 30 days
EPSS Percentile
70.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0143 is in the 94th percentile among its peer group of 3,049 CVEs.

Social Chatter

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-2004-0643Critical

security flaw

Aug 31, 2004

References

distro.conectiva.com.br / atualizacoes
Broken Link
marc.info
Issue TrackingThird Party Advisory
rhn.redhat.com / errata/RHSA-2004-350.html
Third Party Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/17159
Third Party AdvisoryVDB Entry
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10267
Broken LinkThird Party Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A3322
Broken LinkThird Party Advisory
web.mit.edu / kerberos/www/advisories/MITKRB5-SA-2004-002-dblfree.txt
PatchVendor Advisory
debian.org / security/2004/dsa-543
Third Party Advisory
gentoo.org / security/en/glsa/glsa-200409-09.xml
Vendor Advisory
kb.cert.org / vuls/id/866472
Third Party AdvisoryUS Government Resource
securityfocus.com / bid/11078
Third Party AdvisoryVDB Entry
trustix.net / errata/2004/0045
Broken Link
us-cert.gov / cas/techalerts/TA04-247A.html
Third Party AdvisoryUS Government Resource