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Fencer Vulns
medium 6.5

CVE-2016-9951 json

An issue was discovered in Apport before 2.20.4.

published 2016-12-17 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-10738

cvss
6.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.7%
EPSS 6.7% chance of exploitation in 30 days, percentile 93%
public exploits
1
Exploit-DB

Summary

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.

Patch / fix

  • apport Ubuntu 14.04 LTS 2.14.1-0ubuntu3.23
  • apport Ubuntu 16.04 LTS 2.20.1-0ubuntu2.4

ubuntu advisories UBUNTU-CVE-2016-9951

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Timeline

  1. First public exploit (EDB-40937)
  2. Published

Exploit prediction

6.67% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-40937 Apport 2.x (Ubuntu Desktop 12.10 < 16.04) - Local Code Execution local, 2016-12-14
  • donncha.is https://donncha.is/2016/12/compromising-ubuntu-desktop/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.