CVE-2011-2192
First published: Tue Jun 07 2011(Updated: )
It was found that cURL performed client credentials delegation during the client-to-server GSS security mechanisms negotiation. A remote, rogue server could use this flaw to impersonate the cURL client (victim) against the correct (originally intended) server, potentially leading to denial of cURL tool services for victim client.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| libcurl | >=7.10.6<=7.21.6 | |
| Apple iOS and macOS | <10.7.3 | |
| Red Hat Fedora | =15 | |
| Red Hat Fedora | =14 | |
| Debian Linux | =5.0 | |
| Debian Linux | =7.0 | |
| Debian Linux | =6.0 | |
| Ubuntu | =10.10 | |
| Ubuntu | =11.04 | |
| Ubuntu | =8.04 | |
| Ubuntu | =10.04 |
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Reference Links
- http://curl.haxx.se/curl-gssapi-delegation.patch
- http://curl.haxx.se/docs/adv_20110623.html
- https://bugzilla.redhat.com/show_bug.cgi?id=711454
- http://www.ubuntu.com/usn/USN-1158-1
- http://www.redhat.com/support/errata/RHSA-2011-0918.html
- http://secunia.com/advisories/45088
- http://secunia.com/advisories/45181
- http://secunia.com/advisories/45144
- http://www.debian.org/security/2011/dsa-2271
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061992.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062287.html
- http://www.securitytracker.com/id?1025713
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:116
- http://secunia.com/advisories/45067
- http://secunia.com/advisories/45047
- http://support.apple.com/kb/HT5130
- http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html
- http://security.gentoo.org/glsa/glsa-201203-02.xml
- http://secunia.com/advisories/48256
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=715553
- https://rhn.redhat.com/errata/RHSA-2011-0918.html
Frequently Asked Questions
What is the severity of CVE-2011-2192?
CVE-2011-2192 has been classified as a moderate severity vulnerability that could lead to impersonation of a cURL client.
How do I fix CVE-2011-2192?
To fix CVE-2011-2192, upgrade to a version of cURL that is newer than 7.21.6.
Which versions of cURL are affected by CVE-2011-2192?
CVE-2011-2192 affects cURL versions between 7.10.6 and 7.21.6 inclusive.
What systems are impacted by CVE-2011-2192?
CVE-2011-2192 affects various operating systems including specific versions of Debian, Fedora, Ubuntu, and macOS.
How can an attacker exploit CVE-2011-2192?
An attacker can exploit CVE-2011-2192 by impersonating a cURL client using a rogue server during the GSS security mechanisms negotiation.
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