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Fencer Intel
medium 4.2

CVE-2019-11482 json

Race condition between reading current working directory and writing a core dump

published 6y ago modified 4mo ago also EUVD-2019-3155

cvss
4.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 14%
public exploits
0
none known

Summary

Sander Bos discovered a time of check to time of use (TOCTTOU) vulnerability in apport that allowed a user to cause core files to be written in arbitrary directories.

Patch / fix

  • Canonical apport 2.14.1-0ubuntu3.29+esm2, 2.20.1-0ubuntu2.20, 2.20.9-0ubuntu7.8, 2.20.11-0ubuntu8.1
  • apport Ubuntu 16.04 LTS 2.20.1-0ubuntu2.20
  • apport Ubuntu 18.04 LTS 2.20.9-0ubuntu7.8
  • apport Ubuntu Pro 14.04 LTS 2.14.1-0ubuntu3.29+esm2

ubuntu advisories UBUNTU-CVE-2019-11482

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

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Exploit prediction

0.23% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 4.2 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L
NVD 3.1 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 1.9 AV:L/AC:M/Au:N/C:P/I:N/A:N

Affected products

  • Canonical apport

Classification

Weakness
  • CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

References

Sources

Fencer Intel 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.