CVE-2016-0755
First published: Fri Jan 29 2016(Updated: )
The ConnectionExists function in lib/url.c in libcurl before 7.47.0 does not properly re-use NTLM-authenticated proxy connections, which might allow remote attackers to authenticate as other users via a request, a similar issue to CVE-2014-0015.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| curl | <=7.46.0 | |
| Ubuntu | =12.04 | |
| Ubuntu | =14.04 | |
| Ubuntu | =15.04 | |
| Ubuntu | =15.10 | |
| Debian | =7.0 |
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Reference Links
- http://curl.haxx.se/docs/adv_20160127A.html
- http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176546.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177342.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177383.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176413.html
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00031.html
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00044.html
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00047.html
- http://packetstormsecurity.com/files/135695/Slackware-Security-Advisory-curl-Updates.html
- http://www.debian.org/security/2016/dsa-3455
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- http://www.securityfocus.com/bid/82307
- http://www.securitytracker.com/id/1034882
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.519965
- http://www.ubuntu.com/usn/USN-2882-1
- https://security.gentoo.org/glsa/201701-47
- https://support.apple.com/HT207170
Frequently Asked Questions
What is the severity of CVE-2016-0755?
CVE-2016-0755 is classified as a medium severity vulnerability.
How do I fix CVE-2016-0755?
To fix CVE-2016-0755, you should upgrade to libcurl version 7.47.0 or later.
Which versions of libcurl are affected by CVE-2016-0755?
Libcurl versions prior to 7.47.0, particularly 7.46.0 and earlier, are affected by CVE-2016-0755.
What systems are impacted by CVE-2016-0755?
CVE-2016-0755 impacts various Linux distributions including affected versions of Ubuntu and Debian.
What type of attack is CVE-2016-0755 associated with?
CVE-2016-0755 is associated with remote attackers potentially authenticating as other users through improper reuse of NTLM-authenticated proxy connections.
- agent/type
- agent/references
- collector/mitre-cve
- source/MITRE
- agent/author
- agent/severity
- agent/last-modified-date
- agent/weakness
- agent/first-publish-date
- agent/description
- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/haxx
- canonical/curl
- version/curl/7.46.0
- vendor/canonical
- canonical/ubuntu linux
- version/ubuntu linux/12.04
- version/ubuntu linux/14.04
- version/ubuntu linux/15.04
- version/ubuntu linux/15.10
- vendor/debian
- canonical/debian
- version/debian/7.0