CVE-2004-0079
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
02 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
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 9.53% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 95.0% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2004-03-18 05:00Z22 YR AGO
- Last updated
- 2025-01-16 17:33Z1 YR AGO
- Reserved
- 2004-01-19
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476NULL Pointer DereferenceBase
- Data version
- 5.1
- Document digest
- c1be888e5a5ebb2c4d7fc2bd6faeb136743a16bc92f8aa7056c81a959765a952
05 Affected products
7 further entries not shown. The complete list is in the raw JSON document.
06 References
- www.securityfocus.com9899http://www.securityfocus.com/bid/9899
- www.redhat.comFEDORA-2005-1042http://www.redhat.com/archives/fedora-announce-list/2005-October/msg00087.html
- www.linuxsecurity.comESA-20040317-003http://www.linuxsecurity.com/advisories/engarde_advisory-4135.html
- marc.infoSSRT4717http://marc.info/?l=bugtraq&m=108403806509920&w=2
- www.redhat.comRHSA-2004:121http://www.redhat.com/support/errata/RHSA-2004-121.html
- www.mandriva.comMDKSA-2004:023http://www.mandriva.com/security/advisories?name=MDKSA-2004:023
- oval.cisecurity.orgoval:org.mitre.oval:def:2621https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2621
- distro.conectiva.com.brCLA-2004:834http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000834
- ftp.sco.comSCOSA-2004.10ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2004.10/SCOSA-2004.10.txt
- secunia.com17381http://secunia.com/advisories/17381
- www.uniras.gov.ukhttp://www.uniras.gov.uk/vuls/2004/224012/index.htm
- fedoranews.orgFEDORA-2004-095http://fedoranews.org/updates/FEDORA-2004-095.shtml
- oval.cisecurity.orgoval:org.mitre.oval:def:9779https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9779
- oval.cisecurity.orgoval:org.mitre.oval:def:975https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A975
- sunsolve.sun.com57524http://sunsolve.sun.com/pub-cgi/retrieve.pl?doc=fsalert/57524
- www.novell.comSuSE-SA:2004:007http://www.novell.com/linux/security/advisories/2004_07_openssl.html
- lists.apple.comhttp://lists.apple.com/mhonarc/security-announce/msg00045.html
- www.openssl.orghttp://www.openssl.org/news/secadv_20040317.txt
- ftp.freebsd.orgFreeBSD-SA-04:05ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-04:05.openssl.asc
- ftp.netbsd.orgNetBSD-SA2004-005ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2004-005.txt.asc
- www.ciac.orgO-101http://www.ciac.org/ciac/bulletins/o-101.shtml
- www.us-cert.govTA04-078Ahttp://www.us-cert.gov/cas/techalerts/TA04-078A.html
- secunia.com17401http://secunia.com/advisories/17401
- www.redhat.comRHSA-2005:829http://www.redhat.com/support/errata/RHSA-2005-829.html
- support.avaya.comhttp://support.avaya.com/elmodocs2/security/ASA-2005-239.htm
- oval.cisecurity.orgoval:org.mitre.oval:def:870https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A870
- www.redhat.comRHSA-2005:830http://www.redhat.com/support/errata/RHSA-2005-830.html
- security.gentoo.orgGLSA-200403-03http://security.gentoo.org/glsa/glsa-200403-03.xml
- secunia.com11139http://secunia.com/advisories/11139
- www.redhat.comRHSA-2004:120http://www.redhat.com/support/errata/RHSA-2004-120.html
- marc.info20040317 New OpenSSL releases fix denial of service attacks [17 March 2004]http://marc.info/?l=bugtraq&m=107953412903636&w=2
- support.lexmark.comhttp://support.lexmark.com/index?page=content&id=TE88&locale=EN&userlocale=EN_US
- lists.apple.comAPPLE-SA-2005-08-15http://lists.apple.com/archives/security-announce/2005/Aug/msg00000.html
- secunia.com17398http://secunia.com/advisories/17398
- www.slackware.orgSSA:2004-077http://www.slackware.org/security/viewer.php?l=slackware-security&y=2004&m=slackware-security.455961
- www.redhat.comRHSA-2004:139http://www.redhat.com/support/errata/RHSA-2004-139.html
- exchange.xforce.ibmcloud.comopenssl-dochangecipherspec-dos(15505)https://exchange.xforce.ibmcloud.com/vulnerabilities/15505
- www.trustix.org2004-0012http://www.trustix.org/errata/2004/0012
- www.cisco.com20040317 Cisco OpenSSL Implementation Vulnerabilityhttp://www.cisco.com/warp/public/707/cisco-sa-20040317-openssl.shtml
- docs.info.apple.comhttp://docs.info.apple.com/article.html?artnum=61798
- www.kb.cert.orgVU#288574http://www.kb.cert.org/vuls/id/288574
- www.debian.orgDSA-465http://www.debian.org/security/2004/dsa-465
- lists.apple.comAPPLE-SA-2005-08-17http://lists.apple.com/archives/security-announce/2005//Aug/msg00001.html
- secunia.com18247http://secunia.com/advisories/18247
- oval.cisecurity.orgoval:org.mitre.oval:def:5770https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5770
07 Fixed in
Debian 12
- openssl Fixed in 0.9.7d-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- openssl Fixed in 0.9.7d-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- openssl Fixed in 0.9.7d-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.