CVE-2007-0493 in the critical feed json
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…
published 2007-01-25 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-0491
- cvss
- 7.8
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 12.8%
- EPSS 12.8% chance of exploitation in 30 days, percentile 96%
- public exploits
- 0
- none known
Summary
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."
Patch / fix
- bind9 Debian 14, Debian 13, Debian 12 1:9.3.4-2
debian advisories DEBIAN-CVE-2007-0493
- bind RHEL 5 30:9.3.3-8.el5
- bind-sdb RHEL 5 30:9.3.3-8.el5
- bind-libs RHEL 5 30:9.3.3-8.el5
- bind-utils RHEL 5 30:9.3.3-8.el5
- bind-chroot RHEL 5 30:9.3.3-8.el5
- caching-nameserver RHEL 5 30:9.3.3-8.el5
red hat advisories RHSA-2007:0057
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2007-0493 updated
bind use-after-free
-
Red Hat Enterprise Linux (v. 5 server) bind 9.3.3-8.el5, bind-sdb 9.3.3-8.el5, bind-libs 9.3.3-8.el5, bind-utils 9.3.3-8.el5, bind-chroot 9.3.3-8.el5, caching-nameserver 9.3.3-8.el5 Red Hat Enterprise Linux Desktop (v. 5 client) bind 9.3.3-8.el5, bind-sdb 9.3.3-8.el5, bind-libs 9.3.3-8.el5, bind-utils 9.3.3-8.el5, bind-chroot 9.3.3-8.el5, caching-nameserver 9.3.3-8.el5 Red Hat Enterprise Linux Desktop Workstation (v. 5 client) bind 9.3.3-8.el5, bind-sdb 9.3.3-8.el5, bind-libs 9.3.3-8.el5, bind-utils 9.3.3-8.el5, bind-chroot 9.3.3-8.el5, caching-nameserver 9.3.3-8.el5fixed: vendor fix RHSA-2007:0057
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
12.77% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C |
References
-
isc.org
/index.pl?/sw/bind/view/?release=9.2.8
patch
-
isc.org
/index.pl?/sw/bind/view/?release=9.3.4
patch
-
h20000.www2.hp.com
/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=c01070495
vendor-advisory
-
security.gentoo.org
/glsa/glsa-200702-06.xml
vendor-advisory
-
security.freebsd.org
/advisories/FreeBSD-SA-07:02.bind.asc
vendor-advisory
-
www2.itrc.hp.com
/service/cki/docDisplay.do?docId=c00967144
vendor-advisory
-
openpkg.com
/security/advisories/OpenPKG-SA-2007.007.html
vendor-advisory
-
ftp.netbsd.org
/pub/NetBSD/security/advisories/NetBSD-SA2007-003.txt.asc
vendor-advisory
-
mandriva.com
/security/advisories?name=MDKSA-2007:030
vendor-advisory
-
redhat.com
/support/errata/RHSA-2007-0057.html
vendor-advisory
-
trustix.org
/errata/2007/0005
vendor-advisory
-
lists.apple.com
/archives/security-announce/2007/May/msg00004.html
vendor-advisory
-
fedoranews.org
/cms/node/2537
vendor-advisory
-
ubuntu.com
/usn/usn-418-1
vendor-advisory
-
lists.suse.com
/archive/suse-security-announce/2007-Jan/0016.html
vendor-advisory
-
fedoranews.org
/cms/node/2507
vendor-advisory
-
slackware.com
/security/viewer.php?l=slackware-security&y=2007&m=slackware-security.494157
vendor-advisory
-
secunia.com
/advisories/23904
third-party-advisory, vendor-advisory
- docs.info.apple.com /article.html?artnum=305530
-
secunia.com
/advisories/24129
third-party-advisory
-
secunia.com
/advisories/24048
third-party-advisory
-
vupen.com
/english/advisories/2007/1939
vdb-entry
-
secunia.com
/advisories/23943
third-party-advisory
-
secunia.com
/advisories/25402
third-party-advisory
-
secunia.com
/advisories/25649
third-party-advisory
-
secunia.com
/advisories/24930
third-party-advisory
-
vupen.com
/english/advisories/2007/2163
vdb-entry
-
secunia.com
/advisories/23977
third-party-advisory
- isc.org /index.pl?/sw/bind/bind-security.php
-
secunia.com
/advisories/24203
third-party-advisory
-
secunia.com
/advisories/24014
third-party-advisory
-
secunia.com
/advisories/24054
third-party-advisory
-
secunia.com
/advisories/23974
third-party-advisory
-
vupen.com
/english/advisories/2007/2315
vdb-entry
-
securityfocus.com
/archive/1/458066/100/0/threaded
mailing-list
- issues.rpath.com /browse/RPL-989
- h20564.www2.hpe.com /portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04952488
-
marc.info
/?l=bind-announce&m=116968519321296&w=2
mailing-list
-
vupen.com
/english/advisories/2007/1401
vdb-entry
-
securityfocus.com
/bid/22229
vdb-entry
- lists.grok.org.uk /pipermail/full-disclosure/2007-January/052018.html
- secunia.com /advisories/23924
- secunia.com /advisories/23972
- secunia.com /advisories/24950
- securitytracker.com /id?1017561
- vupen.com /english/advisories/2007/0349
Sources
- CVE List CVE-2007-0493
- NVD CVE-2007-0493
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.