Vulnerability Report

CVE-2007-0493

Title: Isc Bind Denial of Service (DoS)

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2007-0493.

CWE Category NVD-CWE-noinfo

Published Date Jan 25, 2007

Modified Date Jun 16, 2026

Exploit Status Not Found

Score 7.8 CVSS v2.0

Exploit Probability (EPSS)

12.08%

Vulnerability Summary

CVE-2007-0493: Use-after-free vulnerability in ISC BIND 9.3.0 up to 9.3.3, 9.4.0a1 up to 9.4.0a6, 9.4.0b1 up to 9.4.0b4, 9.4.0rc1, and 9.5.0a1 (Bind Forum only) allows remote attackers to cause a denial of service (named daemon crash) via unspecified vectors that cause named to "dereference a freed fetch context."

Impacted Vendors

isc 1

Reference Links

http://docs.info.apple.com/article.html?artnum=305530 http://fedoranews.org/cms/node/2507 http://fedoranews.org/cms/node/2537 http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2007-003.txt.asc http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=c01070495 http://lists.apple.com/archives/security-announce/2007/May/msg00004.html http://lists.grok.org.uk/pipermail/full-disclosure/2007-January/052018.html http://lists.suse.com/archive/suse-security-announce/2007-Jan/0016.html http://marc.info/?l=bind-announce&m=116968519321296&w=2 http://secunia.com/advisories/23904 http://secunia.com/advisories/23924 http://secunia.com/advisories/23943 http://secunia.com/advisories/23972 http://secunia.com/advisories/23974 http://secunia.com/advisories/23977 http://secunia.com/advisories/24014 http://secunia.com/advisories/24048 http://secunia.com/advisories/24054 http://secunia.com/advisories/24129 http://secunia.com/advisories/24203 http://secunia.com/advisories/24930 http://secunia.com/advisories/24950 http://secunia.com/advisories/25402 http://secunia.com/advisories/25649 http://security.freebsd.org/advisories/FreeBSD-SA-07:02.bind.asc http://security.gentoo.org/glsa/glsa-200702-06.xml http://securitytracker.com/id?1017561 http://slackware.com/security/viewer.php?l=slackware-security&y=2007&m=slackware-security.494157 http://www.isc.org/index.pl?/sw/bind/bind-security.php http://www.isc.org/index.pl?/sw/bind/view/?release=9.2.8 http://www.isc.org/index.pl?/sw/bind/view/?release=9.3.4 http://www.mandriva.com/security/advisories?name=MDKSA-2007:030 http://www.openpkg.com/security/advisories/OpenPKG-SA-2007.007.html http://www.redhat.com/support/errata/RHSA-2007-0057.html http://www.securityfocus.com/archive/1/458066/100/0/threaded http://www.securityfocus.com/bid/22229 http://www.trustix.org/errata/2007/0005 http://www.ubuntu.com/usn/usn-418-1 http://www.vupen.com/english/advisories/2007/0349 http://www.vupen.com/english/advisories/2007/1401 http://www.vupen.com/english/advisories/2007/1939 http://www.vupen.com/english/advisories/2007/2163 http://www.vupen.com/english/advisories/2007/2315 https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04952488 https://issues.rpath.com/browse/RPL-989 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9614 https://www2.itrc.hp.com/service/cki/docDisplay.do?docId=c00967144 http://docs.info.apple.com/article.html?artnum=305530 http://fedoranews.org/cms/node/2507 http://fedoranews.org/cms/node/2537 http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2007-003.txt.asc http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=c01070495 http://lists.apple.com/archives/security-announce/2007/May/msg00004.html http://lists.grok.org.uk/pipermail/full-disclosure/2007-January/052018.html http://lists.suse.com/archive/suse-security-announce/2007-Jan/0016.html http://marc.info/?l=bind-announce&m=116968519321296&w=2 http://secunia.com/advisories/23904 http://secunia.com/advisories/23924 http://secunia.com/advisories/23943 http://secunia.com/advisories/23972 http://secunia.com/advisories/23974 http://secunia.com/advisories/23977 http://secunia.com/advisories/24014 http://secunia.com/advisories/24048 http://secunia.com/advisories/24054 http://secunia.com/advisories/24129 http://secunia.com/advisories/24203 http://secunia.com/advisories/24930 http://secunia.com/advisories/24950 http://secunia.com/advisories/25402 http://secunia.com/advisories/25649 http://security.freebsd.org/advisories/FreeBSD-SA-07:02.bind.asc http://security.gentoo.org/glsa/glsa-200702-06.xml http://securitytracker.com/id?1017561 http://slackware.com/security/viewer.php?l=slackware-security&y=2007&m=slackware-security.494157 http://www.isc.org/index.pl?/sw/bind/bind-security.php http://www.isc.org/index.pl?/sw/bind/view/?release=9.2.8 http://www.isc.org/index.pl?/sw/bind/view/?release=9.3.4 http://www.mandriva.com/security/advisories?name=MDKSA-2007:030 http://www.openpkg.com/security/advisories/OpenPKG-SA-2007.007.html http://www.redhat.com/support/errata/RHSA-2007-0057.html http://www.securityfocus.com/archive/1/458066/100/0/threaded http://www.securityfocus.com/bid/22229 http://www.trustix.org/errata/2007/0005 http://www.ubuntu.com/usn/usn-418-1 http://www.vupen.com/english/advisories/2007/0349 http://www.vupen.com/english/advisories/2007/1401 http://www.vupen.com/english/advisories/2007/1939 http://www.vupen.com/english/advisories/2007/2163 http://www.vupen.com/english/advisories/2007/2315 https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04952488 https://issues.rpath.com/browse/RPL-989 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9614 https://www2.itrc.hp.com/service/cki/docDisplay.do?docId=c00967144

CVSS v2.0

Source Entity [email protected]

Severity HIGH

7.8

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:N/I:N/A:C

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2007-0493 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 16, 2026 MODIFIED

Vulnerability data updated via NVD.

April 09, 2025 MODIFIED

Vulnerability data or affected products updated.

January 25, 2007 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A

Complexity N/A

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.