What is CVE-2016-10243?

CVE-2016-10243 is a critical-severity software vulnerability (Improper input validation) with a CVSS score of 9.8. TeX Live allows remote attackers to execute arbitrary commands by leveraging inclusion of mpost in shell_escape_commands in the texmf.cnf config file.

Is CVE-2016-10243 being actively exploited?

It is not currently in CISA's KEV catalog. Its EPSS exploitation probability is 7%.

What products does CVE-2016-10243 affect?

Tracked products affected include Fedora. Check the version you run to see whether it is affected.

How do I fix CVE-2016-10243?

Apply the vendor fix promptly. An official patch or advisory is available. Upgrade affected products to a fixed version.

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CVE-2016-10243

CRITICAL severity · CVSS 9.8 · Improper input validation

9.8CVSS CRITICAL

Summary

TeX Live allows remote attackers to execute arbitrary commands by leveraging inclusion of mpost in shell_escape_commands in the texmf.cnf config file.

Impact & exploitability

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

Confidentiality impactHigh

Integrity impactHigh

Availability impactHigh

Exploit probability (EPSS)7%

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products we track (1)

Fedora

Recommendation

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

Official patch: https://www.tug.org/svn/texlive?view=revision&revision=42605 ↗

Additional information

NVD record
https://www.tug.org/svn/texlive?view=revision&revision=42605Patch
http://www.debian.org/security/2017/dsa-3803Advisory
http://www.openwall.com/lists/oss-security/2017/03/05/1Advisory
http://www.securityfocus.com/bid/96593Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B7CNJ4HKX7X6V7VMN3UCU7KPY6IX4XRB/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VL6PUKPWEXYIPIAZRIX5ZLQWCSALVLFP/
https://security.gentoo.org/glsa/201709-07
https://scumjr.github.io/2016/11/28/pwning-coworkers-thanks-to-latex/Advisory