CVE-2016-9951

Name: CVE-2016-9951
Creator: NVD / NIST
Published: 2016-12-17T03:59:00.357+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 6.67%

Last modified Jun 17, 2026

CVE-2016-9951 is a vulnerability of currently unknown severity. An issue was discovered in Apport before 2.20.4. A malicious Apport crash file can contain a restart command in `RespawnCommand` or `ProcCmdline` fields. EPSS estimates a 6.67% chance of exploitation in the next 30 days.

Description

An issue was discovered in Apport before 2.20.4. A malicious Apport crash file can contain a restart command in `RespawnCommand` or `ProcCmdline` fields. This command will be executed if a user clicks the Relaunch button on the Apport prompt from the malicious crash file. The fix is to only show the Relaunch button on Apport crash files generated by local systems. The Relaunch button will be hidden when crash files are opened directly in Apport-GTK.

Metrics

EPSS Probability

6.67%

93.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-284

Affected Software

Vendor	Product	Versions
Apport Project	Apport	<= 2.20.3

References

http://www.securityfocus.com/bid/95011Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-3157-1
https://bugs.launchpad.net/apport/+bug/1648806Issue Tracking, Patch
https://donncha.is/2016/12/compromising-ubuntu-desktop/Exploit, Technical Description, Third Party Advisory
https://github.com/DonnchaC/ubuntu-apport-exploitationIssue Tracking, Third Party Advisory
https://www.exploit-db.com/exploits/40937/
http://www.securityfocus.com/bid/95011Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-3157-1
https://bugs.launchpad.net/apport/+bug/1648806Issue Tracking, Patch
https://donncha.is/2016/12/compromising-ubuntu-desktop/Exploit, Technical Description, Third Party Advisory
https://github.com/DonnchaC/ubuntu-apport-exploitationIssue Tracking, Third Party Advisory
https://www.exploit-db.com/exploits/40937/

Timeline

Published: Dec 17, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-9951?

How severe is CVE-2016-9951?

Severity scoring for CVE-2016-9951 is pending analysis. The EPSS model estimates a 6.67% probability of exploitation in the next 30 days.

How do I fix CVE-2016-9951?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-9951?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST