CVE-2007-2443

Name: CVE-2007-2443
Creator: NVD / NIST
Published: 2007-06-26T22:30:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.48%

Last modified Jun 16, 2026

CVE-2007-2443 is a vulnerability of currently unknown severity. Integer signedness error in the gssrpc__svcauth_unix function in svc_auth_unix.c in the RPC library in MIT Kerberos 5 (krb5) 1.6.1 and earlier might allow remote attackers to execute arbitrary code via a negative length value.. EPSS estimates a 3.48% chance of exploitation in the next 30 days.

Description

Integer signedness error in the gssrpc__svcauth_unix function in svc_auth_unix.c in the RPC library in MIT Kerberos 5 (krb5) 1.6.1 and earlier might allow remote attackers to execute arbitrary code via a negative length value.

Metrics

EPSS Probability

3.48%

87.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Mit	Kerberos 5	<= 1.6.1
Debian	Debian Linux	3.1
Debian	Debian Linux	4.0
Canonical	Ubuntu Linux	6.06
Canonical	Ubuntu Linux	6.10
Canonical	Ubuntu Linux	7.04

References

ftp://patches.sgi.com/support/free/security/advisories/20070602-01-P.ascBroken Link
http://docs.info.apple.com/article.html?artnum=306172Broken Link
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02257427Broken Link
http://lists.apple.com/archives/security-announce//2007/Jul/msg00004.htmlMailing List, Third Party Advisory
http://lists.grok.org.uk/pipermail/full-disclosure/2007-September/065902.htmlThird Party Advisory
http://osvdb.org/36597Broken Link
http://secunia.com/advisories/25800Third Party Advisory
http://secunia.com/advisories/25801Third Party Advisory
http://secunia.com/advisories/25814Third Party Advisory
http://secunia.com/advisories/25821Third Party Advisory
http://secunia.com/advisories/25870Third Party Advisory
http://secunia.com/advisories/25888Third Party Advisory
http://secunia.com/advisories/25890Third Party Advisory
http://secunia.com/advisories/25894Third Party Advisory
http://secunia.com/advisories/25911Third Party Advisory
http://secunia.com/advisories/26033Third Party Advisory
http://secunia.com/advisories/26228Third Party Advisory
http://secunia.com/advisories/26235Third Party Advisory
http://secunia.com/advisories/26909Third Party Advisory
http://secunia.com/advisories/27706Third Party Advisory
http://secunia.com/advisories/40346Third Party Advisory
http://security.gentoo.org/glsa/glsa-200707-11.xmlThird Party Advisory
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2007-004.txtPatch, Vendor Advisory
http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2007-004.txtPatch, Vendor Advisory
http://www.debian.org/security/2007/dsa-1323Third Party Advisory
http://www.kb.cert.org/vuls/id/365313Patch, Third Party Advisory, US Government Resource
http://www.mandriva.com/security/advisories?name=MDKSA-2007:137Third Party Advisory
http://www.novell.com/linux/security/advisories/2007_38_krb5.htmlBroken Link
http://www.redhat.com/support/errata/RHSA-2007-0384.htmlThird Party Advisory
http://www.redhat.com/support/errata/RHSA-2007-0562.htmlThird Party Advisory
http://www.securityfocus.com/archive/1/472288/100/0/threadedThird Party Advisory, VDB Entry
http://www.securityfocus.com/archive/1/472432/100/0/threadedThird Party Advisory, VDB Entry
http://www.securityfocus.com/archive/1/472507/30/5970/threadedThird Party Advisory, VDB Entry
http://www.securityfocus.com/bid/24657Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/25159Third Party Advisory, VDB Entry
http://www.securitytracker.com/id?1018293Third Party Advisory, VDB Entry
http://www.trustix.org/errata/2007/0021/Broken Link
http://www.ubuntu.com/usn/usn-477-1Third Party Advisory
http://www.us-cert.gov/cas/techalerts/TA07-177A.htmlPatch, Third Party Advisory, US Government Resource
http://www.vupen.com/english/advisories/2007/2337Third Party Advisory
http://www.vupen.com/english/advisories/2007/2491Third Party Advisory
http://www.vupen.com/english/advisories/2007/2732Third Party Advisory
http://www.vupen.com/english/advisories/2007/3229Third Party Advisory
http://www.vupen.com/english/advisories/2010/1574Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/35085Third Party Advisory, VDB Entry
https://issues.rpath.com/browse/RPL-1499Broken Link
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11277Broken Link, Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7131Broken Link, Third Party Advisory
https://secure-support.novell.com/KanisaPlatform/Publishing/773/3248163_f.SAL_Public.htmlBroken Link
ftp://patches.sgi.com/support/free/security/advisories/20070602-01-P.ascBroken Link
http://docs.info.apple.com/article.html?artnum=306172Broken Link
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02257427Broken Link
http://lists.apple.com/archives/security-announce//2007/Jul/msg00004.htmlMailing List, Third Party Advisory
http://lists.grok.org.uk/pipermail/full-disclosure/2007-September/065902.htmlThird Party Advisory
http://osvdb.org/36597Broken Link
http://secunia.com/advisories/25800Third Party Advisory
http://secunia.com/advisories/25801Third Party Advisory
http://secunia.com/advisories/25814Third Party Advisory
http://secunia.com/advisories/25821Third Party Advisory
http://secunia.com/advisories/25870Third Party Advisory
http://secunia.com/advisories/25888Third Party Advisory
http://secunia.com/advisories/25890Third Party Advisory
http://secunia.com/advisories/25894Third Party Advisory
http://secunia.com/advisories/25911Third Party Advisory
http://secunia.com/advisories/26033Third Party Advisory
http://secunia.com/advisories/26228Third Party Advisory
http://secunia.com/advisories/26235Third Party Advisory
http://secunia.com/advisories/26909Third Party Advisory
http://secunia.com/advisories/27706Third Party Advisory
http://secunia.com/advisories/40346Third Party Advisory
http://security.gentoo.org/glsa/glsa-200707-11.xmlThird Party Advisory
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2007-004.txtPatch, Vendor Advisory
http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2007-004.txtPatch, Vendor Advisory
http://www.debian.org/security/2007/dsa-1323Third Party Advisory
http://www.kb.cert.org/vuls/id/365313Patch, Third Party Advisory, US Government Resource
http://www.mandriva.com/security/advisories?name=MDKSA-2007:137Third Party Advisory
http://www.novell.com/linux/security/advisories/2007_38_krb5.htmlBroken Link
http://www.redhat.com/support/errata/RHSA-2007-0384.htmlThird Party Advisory
http://www.redhat.com/support/errata/RHSA-2007-0562.htmlThird Party Advisory
http://www.securityfocus.com/archive/1/472288/100/0/threadedThird Party Advisory, VDB Entry
http://www.securityfocus.com/archive/1/472432/100/0/threadedThird Party Advisory, VDB Entry
http://www.securityfocus.com/archive/1/472507/30/5970/threadedThird Party Advisory, VDB Entry
http://www.securityfocus.com/bid/24657Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/25159Third Party Advisory, VDB Entry
http://www.securitytracker.com/id?1018293Third Party Advisory, VDB Entry
http://www.trustix.org/errata/2007/0021/Broken Link
http://www.ubuntu.com/usn/usn-477-1Third Party Advisory
http://www.us-cert.gov/cas/techalerts/TA07-177A.htmlPatch, Third Party Advisory, US Government Resource
http://www.vupen.com/english/advisories/2007/2337Third Party Advisory
http://www.vupen.com/english/advisories/2007/2491Third Party Advisory
http://www.vupen.com/english/advisories/2007/2732Third Party Advisory
http://www.vupen.com/english/advisories/2007/3229Third Party Advisory
http://www.vupen.com/english/advisories/2010/1574Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/35085Third Party Advisory, VDB Entry
https://issues.rpath.com/browse/RPL-1499Broken Link
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11277Broken Link, Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7131Broken Link, Third Party Advisory
https://secure-support.novell.com/KanisaPlatform/Publishing/773/3248163_f.SAL_Public.htmlBroken Link

Timeline

Published: Jun 26, 2007
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2007-2443?

How severe is CVE-2007-2443?

Severity scoring for CVE-2007-2443 is pending analysis. The EPSS model estimates a 3.48% probability of exploitation in the next 30 days.

How do I fix CVE-2007-2443?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2007-2443?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST