High severity7.3NVD Advisory· Published Jan 29, 2016· Updated Jun 17, 2026
CVE-2016-0755
CVE-2016-0755
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
25cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*+ 3 more
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
- osv-coords18 versionspkg:rpm/opensuse/curl&distro=openSUSE%20Tumbleweedpkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Desktop%2011%20SP3pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Desktop%2011%20SP4pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Desktop%2012pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP1pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-TERADATApkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%2012pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP3pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP3pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012pkg:rpm/suse/curl&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP1
< 7.51.0-1.1+ 17 more
- (no CPE)range: < 7.51.0-1.1
- (no CPE)range: < 7.19.7-1.46.1
- (no CPE)range: < 7.19.7-1.46.1
- (no CPE)range: < 7.37.0-18.1
- (no CPE)range: < 7.37.0-18.1
- (no CPE)range: < 7.19.7-1.46.1
- (no CPE)range: < 7.19.7-1.46.1
- (no CPE)range: < 7.19.7-1.46.1
- (no CPE)range: < 7.37.0-18.1
- (no CPE)range: < 7.37.0-18.1
- (no CPE)range: < 7.19.7-1.46.1
- (no CPE)range: < 7.19.7-1.46.1
- (no CPE)range: < 7.37.0-18.1
- (no CPE)range: < 7.37.0-18.1
- (no CPE)range: < 7.19.7-1.46.1
- (no CPE)range: < 7.19.7-1.46.1
- (no CPE)range: < 7.37.0-18.1
- (no CPE)range: < 7.37.0-18.1
Patches
Vulnerability mechanics
References
18- curl.haxx.se/docs/adv_20160127A.htmlnvdVendor Advisory
- lists.apple.com/archives/security-announce/2016/Sep/msg00006.htmlnvd
- lists.fedoraproject.org/pipermail/package-announce/2016-February/176546.htmlnvd
- lists.fedoraproject.org/pipermail/package-announce/2016-February/177342.htmlnvd
- lists.fedoraproject.org/pipermail/package-announce/2016-February/177383.htmlnvd
- lists.fedoraproject.org/pipermail/package-announce/2016-January/176413.htmlnvd
- lists.opensuse.org/opensuse-updates/2016-02/msg00031.htmlnvd
- lists.opensuse.org/opensuse-updates/2016-02/msg00044.htmlnvd
- lists.opensuse.org/opensuse-updates/2016-02/msg00047.htmlnvd
- packetstormsecurity.com/files/135695/Slackware-Security-Advisory-curl-Updates.htmlnvd
- www.debian.org/security/2016/dsa-3455nvd
- www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.htmlnvd
- www.securityfocus.com/bid/82307nvd
- www.securitytracker.com/id/1034882nvd
- www.slackware.com/security/viewer.phpnvd
- www.ubuntu.com/usn/USN-2882-1nvd
- security.gentoo.org/glsa/201701-47nvd
- support.apple.com/HT207170nvd
News mentions
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