Description
The _gnutls_x509_verify_certificate function in lib/x509/verify.c in libgnutls in GnuTLS before 2.6.1 trusts certificate chains in which the last certificate is an arbitrary trusted, self-signed certificate, which allows man-in-the-middle attackers to insert a spoofed certificate for any Distinguished Name (DN).
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Affected products
- Canonical / Ubuntu Linux6.06 – 6.06
- Canonical / Ubuntu Linux7.10 – 7.10
- Canonical / Ubuntu Linux8.04 – 8.04
- Canonical / Ubuntu Linux8.10 – 8.10
- Debian / debian_linux4.0 – 4.0
- fedoraproject / fedora8 – 8
- fedoraproject / fedora9 – 9
- gnu / gnutls2.6.1
- openSUSE / opensuse10.3 – 11.1
- SUSE / linux_enterprise10.0 – 10.0
- SUSE / linux_enterprise11.0 – 11.0
- SUSE / linux_enterprise_server10 – 10
- SUSE / linux_enterprise_server11 – 11
References
- VENDOR_ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2008:227
- VENDOR_ADVISORYhttp://www.ubuntu.com/usn/usn-678-2
- VENDOR_ADVISORYhttp://secunia.com/advisories/33694
- MISChttp://security.gentoo.org/glsa/glsa-200901-10.xml
- MISChttp://www.redhat.com/support/errata/RHSA-2008-0982.html
- VENDOR_ADVISORYhttps://usn.ubuntu.com/678-1/
- MISChttp://www.securityfocus.com/archive/1/498431/100/0/threaded
- MISChttp://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3215
- MISChttp://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3217
- VENDOR_ADVISORYhttp://wiki.rpath.com/Advisories:rPSA-2008-0322
- VENDOR_ADVISORYhttp://secunia.com/advisories/32687
- MISChttps://www.redhat.com/archives/fedora-package-announce/2008-November/msg00293.html
- MISChttp://www.gnu.org/software/gnutls/security.html
- MISChttps://issues.rpath.com/browse/RPL-2886
- VENDOR_ADVISORYhttp://secunia.com/advisories/35423
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2008-12/msg00002.html
- MISChttp://www.securityfocus.com/bid/32232
- MISChttp://www.securitytracker.com/id?1021167
- MISChttp://sunsolve.sun.com/search/document.do?assetkey=1-26-260528-1
- VENDOR_ADVISORYhttp://secunia.com/advisories/33501
- VENDOR_ADVISORYhttp://secunia.com/advisories/32879
- VENDOR_ADVISORYhttp://www.vupen.com/english/advisories/2009/1567
- VENDOR_ADVISORYhttp://secunia.com/advisories/32619
- VENDOR_ADVISORYhttp://www.vupen.com/english/advisories/2008/3086
- VENDOR_ADVISORYhttp://secunia.com/advisories/32681
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2009-04/msg00010.html
- MISChttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11650
- VENDOR_ADVISORYhttp://www.debian.org/security/2009/dsa-1719
- MISChttps://www.redhat.com/archives/fedora-package-announce/2008-November/msg00222.html
- MISChttps://exchange.xforce.ibmcloud.com/vulnerabilities/46482