CVE-2016-5421

Home/CVE/Use-after-free vulnerability in libcurl before 7.50.1 allows attackers to control which connection is used or possibly h

CVE

Use-after-free vulnerability in libcurl before 7.50.1 allows attackers to control which connection is used or possibly h

Use-after-free vulnerability in libcurl before 7.50.1 allows attackers to control which connection is used or possibly have unspecified other impact via unknown vectors.

HIGH · CVSS 8.1 EPSS 0.01092

Schedule remediation

CVSS base score ≥ 7.0

Sigma rules1 YARA rules0

⬡

Weakness Classification

CWE-416Use After Free

▤

Affected Products & Versions

opensuse leapall versions
haxx libcurl<= 7.50.0
canonical ubuntu linuxall versions
debian linuxall versions
fedoraproject fedoraall versions
opensuseall versions

◈

Sigma Hunt Rules

Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.

productmediumPotential DLL Sideloading Of Libcurl.DLL Via GUP.EXE

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Scoring & Timeline

8.1

HIGH · CVSS v3.1 · secalert@redhat.com

View on NVD

Attack Vector

Network Adjacent Local Physical

Attack Complexity

Low High

Privileges Required

None Low High

User Interaction

None Required

Scope

Unchanged Changed

Confidentiality

None Low High

Integrity

None Low High

Availability

None Low High

Published to NVD10 Aug 2016 · 02:59 PM

CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

⚑

Vendor Advisories

rhsaRHSA-2018:3558Moderate
suse-csafSUSE-SU-2017:2699-1
suse-csafSUSE-SU-2017:2700-1
android-securityANDROID-2016-12-01High
suse-csafSUSE-SU-2016:2330-1
Show all 6 vendor advisoriesusnUSN-3048-1

🔗

References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

http://lists.opensuse.org/opensuse-updates/2016-09/msg00011.htmlThird Party Advisory

http://lists.opensuse.org/opensuse-updates/2016-09/msg00094.htmlThird Party Advisory

http://www.debian.org/security/2016/dsa-3638Third Party Advisory

http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.htmlPatchThird Party Advisory

http://www.securityfocus.com/bid/92306Third Party AdvisoryVDB Entry

http://www.securitytracker.com/id/1036536Third Party AdvisoryVDB Entry

Show all 14 references

http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.563059Third Party Advisory

http://www.ubuntu.com/usn/USN-3048-1Third Party Advisory

https://curl.haxx.se/docs/adv_20160803C.htmlMitigationVendor Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GLPXQQKURBQFM4XM6645VRPTOE2AWG33/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3GQH4V3XAQ5Z53AMQRDEC3C3UHTW7QR/

https://security.gentoo.org/glsa/201701-47Third Party Advisory

https://source.android.com/security/bulletin/2016-12-01.htmlThird Party Advisory

https://www.tenable.com/security/tns-2016-18Third Party Advisory

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