Is CVE-2016-9840 being actively exploited?

It is not currently in CISA's KEV catalog. Its EPSS exploitation probability is 5%.

What products does CVE-2016-9840 affect?

Tracked products affected include MySQL, Ubuntu. Check the version you run to see whether it is affected.

How do I fix CVE-2016-9840?

Apply the vendor fix promptly. Upgrade affected products to a fixed version.

CVE-2016-9840

Q: What is CVE-2016-9840?

CVE-2016-9840 is a high-severity software vulnerability with a CVSS score of 8.8. inftrees.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.

HIGH severity · CVSS 8.8

8.8CVSS HIGH

Summary

inftrees.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.

Impact & exploitability

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionRequired

Confidentiality impactHigh

Integrity impactHigh

Availability impactHigh

Exploit probability (EPSS)5%

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

Affected products we track (2)

MySQL Ubuntu

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Additional information

NVD record
http://lists.opensuse.org/opensuse-updates/2016-12/msg00127.htmlAdvisory
http://lists.opensuse.org/opensuse-updates/2017-01/msg00050.htmlAdvisory
http://lists.opensuse.org/opensuse-updates/2017-01/msg00053.htmlAdvisory
http://www.openwall.com/lists/oss-security/2016/12/05/21Advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.htmlAdvisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.htmlAdvisory
http://www.securityfocus.com/bid/95131
http://www.securitytracker.com/id/1039427