CVE-2016-5421

Description

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.

Category

8.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.33% Top 25%
Vendor Advisory redhat.com Vendor Advisory slackware.com Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org Vendor Advisory ubuntu.com Vendor Advisory haxx.se
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2018:3558 third party advisory vendor advisory
https://source.android.com/security/bulletin/2016-12-01.html third party advisory
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.563059 third party advisory vendor advisory
http://www.securityfocus.com/bid/92306 vdb entry third party advisory
http://www.debian.org/security/2016/dsa-3638 third party advisory vendor advisory
https://curl.haxx.se/docs/adv_20160803C.html mitigation vendor advisory
http://lists.opensuse.org/opensuse-updates/2016-09/msg00011.html third party advisory vendor advisory
https://www.tenable.com/security/tns-2016-18 third party advisory
http://lists.opensuse.org/opensuse-updates/2016-09/msg00094.html third party advisory vendor advisory
http://www.securitytracker.com/id/1036536 vdb entry third party advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GLPXQQKURBQFM4XM6645VRPTOE2AWG33/ vendor advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html third party advisory patch
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3GQH4V3XAQ5Z53AMQRDEC3C3UHTW7QR/ vendor advisory
https://security.gentoo.org/glsa/201701-47 third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-3048-1 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-5421?
CVE-2016-5421 has been scored as a high severity vulnerability.
How to fix CVE-2016-5421?
To fix CVE-2016-5421, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-5421 being actively exploited in the wild?
It is possible that CVE-2016-5421 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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