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Vulnerability record · CVE-2004-0079 · published 23 November 2004

CVE-2004-0079: Cisco firewall services module null pointer dereference vulnerability

Cisco · Firewall Services Module

The do_change_cipher_spec function in OpenSSL 0.9.6c to 0.9.6k, and 0.9.7a to 0.9.7c, allows remote attackers to cause a denial of service (crash) via a crafted SSL/TLS handshake that triggers a null dereference.

7.5 CVSS 3.1 High EPSS 9.5% · top 4.7% CWE-476 · NULL pointer dereference
7.5CVSS 3.1 base score, v2 5.0
9.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
66Affected product versions listed by NVD
90References
16 Jun 2026Last modified by NVD

Description

The do_change_cipher_spec function in OpenSSL 0.9.6c to 0.9.6k, and 0.9.7a to 0.9.7c, allows remote attackers to cause a denial of service (crash) via a crafted SSL/TLS handshake that triggers a null dereference.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

66 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-04:05.openssl.asc Broken Link
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2004-005.txt.asc Broken Link
ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2004.10/SCOSA-2004.10.txt Broken Link
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000834 Broken Link
http://docs.info.apple.com/article.html?artnum=61798 Broken Link
http://fedoranews.org/updates/FEDORA-2004-095.shtml Third Party Advisory
http://lists.apple.com/archives/security-announce/2005//Aug/msg00001.html Mailing List
http://lists.apple.com/archives/security-announce/2005/Aug/msg00000.html Mailing List
http://lists.apple.com/mhonarc/security-announce/msg00045.html Broken Link
http://marc.info/?l=bugtraq&m=107953412903636&w=2 Mailing List
http://marc.info/?l=bugtraq&m=108403806509920&w=2 Mailing List
http://secunia.com/advisories/11139 Broken Link
http://secunia.com/advisories/17381 Broken Link
http://secunia.com/advisories/17398 Broken Link
http://secunia.com/advisories/17401 Broken Link
http://secunia.com/advisories/18247 Broken Link
http://security.gentoo.org/glsa/glsa-200403-03.xml Third Party Advisory
http://sunsolve.sun.com/pub-cgi/retrieve.pl?doc=fsalert/57524 Broken Link
http://support.avaya.com/elmodocs2/security/ASA-2005-239.htm Third Party Advisory
http://support.lexmark.com/index?page=content&id=TE88&locale=EN&userlocale=EN_US Broken Link
http://www.ciac.org/ciac/bulletins/o-101.shtml Broken Link
http://www.cisco.com/warp/public/707/cisco-sa-20040317-openssl.shtml Broken Link
http://www.debian.org/security/2004/dsa-465 Third Party Advisory
http://www.kb.cert.org/vuls/id/288574 Third Party AdvisoryUS Government Resource
http://www.linuxsecurity.com/advisories/engarde_advisory-4135.html Broken Link
http://www.mandriva.com/security/advisories?name=MDKSA-2004:023 Third Party Advisory
http://www.novell.com/linux/security/advisories/2004_07_openssl.html Broken Link
http://www.openssl.org/news/secadv_20040317.txt Third Party Advisory
http://www.redhat.com/archives/fedora-announce-list/2005-October/msg00087.html Mailing List
http://www.redhat.com/support/errata/RHSA-2004-120.html Broken Link
http://www.redhat.com/support/errata/RHSA-2004-121.html Broken Link
http://www.redhat.com/support/errata/RHSA-2004-139.html Broken Link
http://www.redhat.com/support/errata/RHSA-2005-829.html Broken Link
http://www.redhat.com/support/errata/RHSA-2005-830.html Broken Link
http://www.securityfocus.com/bid/9899 Broken LinkThird Party AdvisoryVDB EntryVendor Advisory
http://www.slackware.org/security/viewer.php?l=slackware-security&y=2004&m=slackware-security.455961 Broken Link
http://www.trustix.org/errata/2004/0012 Broken Link
http://www.uniras.gov.uk/vuls/2004/224012/index.htm Broken Link
http://www.us-cert.gov/cas/techalerts/TA04-078A.html Broken LinkThird Party AdvisoryUS Government Resource
https://exchange.xforce.ibmcloud.com/vulnerabilities/15505 Third Party AdvisoryVDB Entry

Track CVE-2004-0079 inside VULONE

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Source: NIST National Vulnerability Database (record CVE-2004-0079), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.