CVE-2019-11482 json
Race condition between reading current working directory and writing a core dump
published 2020-02-08 6 y ago modified 2026-06-17 4 mo 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
Exploit prediction
0.23% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-08).
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
-
usn.ubuntu.com
/usn/usn-4171-1
third-party-advisory
-
usn.ubuntu.com
/usn/usn-4171-2
third-party-advisory
Sources
- CVE List CVE-2019-11482
- NVD CVE-2019-11482
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