CVE-2019-11482
Race condition between reading current working directory and writing a core dump
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Race condition between reading current working directory and writing a core dump
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.
- Record
CVE-2019-11482- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L - Updated
- 2026-11-02
EUVDEUVD-2019-3155
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.
- Record
EUVD-2019-3155- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-fggm-83vw-5vwq
Sander Bos discovered a time of check to time of use (TOCTTOU) vulnerability in apport that...
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.
- Record
GHSA-fggm-83vw-5vwq- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-367
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2019-11482- CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L - CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 1.9 Low
AV:L/AC:M/Au:N/C:P/I:N/A:N - Weakness
- CWE-367
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2019-11482
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.
- Record
UBUNTU-CVE-2019-11482- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 3.1
- 4.2 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L - Updated
- 2026-11-02
OSVUSN-4171-1 No score
apport vulnerabilities
Kevin Backhouse discovered Apport would read its user-controlled settings file as the root user. This could be used by a local attacker to possibly crash Apport or have other unspecified consequences. (CVE-2019-11481)
Sander Bos discovered a race-condition in Apport during core dump creation. This could be used by a local attacker to generate a crash report for a privileged process that is readable by an unprivileged user. (CVE-2019-11482)
Sander Bos discovered Apport mishandled crash dumps originating from containers. This could be used by a local attacker to generate a crash report for a privileged process that is readable by an unprivileged user. (CVE-2019-11483)
Sander Bos discovered Apport mishandled lock-file creation. This could be used by a local attacker to cause a denial of service against Apport. (CVE-2019-11485)
Kevin Backhouse discovered Apport read various process-specific files with elevated privileges during crash dump generation. This could could be used by a local attacker to generate a crash report for a privileged process that is readable by an unprivileged user. (CVE-2019-15790)
- Record
USN-4171-1- Updated
- 2026-11-02
OSVUSN-4171-2 No score
apport vulnerabilities
USN-4171-1 fixed several vulnerabilities in apport. This update provides the corresponding update for Ubuntu 14.04 ESM.
Original advisory details:
Kevin Backhouse discovered Apport would read its user-controlled settings file as the root user. This could be used by a local attacker to possibly crash Apport or have other unspecified consequences. (CVE-2019-11481)
Sander Bos discovered a race-condition in Apport during core dump creation. This could be used by a local attacker to generate a crash report for a privileged process that is readable by an unprivileged user. (CVE-2019-11482)
Sander Bos discovered Apport mishandled crash dumps originating from containers. This could be used by a local attacker to generate a crash report for a privileged process that is readable by an unprivileged user. (CVE-2019-11483)
Sander Bos discovered Apport mishandled lock-file creation. This could be used by a local attacker to cause a denial of service against Apport. (CVE-2019-11485)
Kevin Backhouse discovered Apport read various process-specific files with elevated privileges during crash dump generation. This could could be used by a local attacker to generate a crash report for a privileged process that is readable by an unprivileged user. (CVE-2019-15790)
- Record
USN-4171-2- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
apportUbuntu:Pro:14.04:LTS |
before 2.14.1-0ubuntu3.29+esm2, plus listed versions 2.12.5-0ubuntu22.12.6-0ubuntu12.12.7-0ubuntu12.12.7-0ubuntu22.12.7-0ubuntu3 Show 38 moreShow less2.12.7-0ubuntu62.13.1-0ubuntu12.13.1-0ubuntu22.13.2-0ubuntu22.13.2-0ubuntu32.13.2-0ubuntu42.13.2-0ubuntu52.13.3-0ubuntu12.14-0ubuntu12.14.1-0ubuntu12.14.1-0ubuntu22.14.1-0ubuntu32.14.1-0ubuntu3.12.14.1-0ubuntu3.22.14.1-0ubuntu3.32.14.1-0ubuntu3.42.14.1-0ubuntu3.52.14.1-0ubuntu3.62.14.1-0ubuntu3.72.14.1-0ubuntu3.82.14.1-0ubuntu3.92.14.1-0ubuntu3.102.14.1-0ubuntu3.112.14.1-0ubuntu3.122.14.1-0ubuntu3.132.14.1-0ubuntu3.152.14.1-0ubuntu3.162.14.1-0ubuntu3.182.14.1-0ubuntu3.192.14.1-0ubuntu3.202.14.1-0ubuntu3.212.14.1-0ubuntu3.232.14.1-0ubuntu3.242.14.1-0ubuntu3.252.14.1-0ubuntu3.272.14.1-0ubuntu3.282.14.1-0ubuntu3.292.14.1-0ubuntu3.29+esm1 |
2.14.1-0ubuntu3.29+esm2 |
apportUbuntu:16.04:LTS |
before 2.20.1-0ubuntu2.20, plus listed versions 2.19.1-0ubuntu32.19.2-0ubuntu12.19.2-0ubuntu22.19.2-0ubuntu32.19.2-0ubuntu4 Show 28 moreShow less2.19.2-0ubuntu52.19.2-0ubuntu62.19.2-0ubuntu82.19.2-0ubuntu92.19.3-0ubuntu12.19.3-0ubuntu22.19.3-0ubuntu32.19.4-0ubuntu12.19.4-0ubuntu22.20-0ubuntu22.20-0ubuntu32.20.1-0ubuntu12.20.1-0ubuntu22.20.1-0ubuntu2.12.20.1-0ubuntu2.22.20.1-0ubuntu2.42.20.1-0ubuntu2.52.20.1-0ubuntu2.62.20.1-0ubuntu2.92.20.1-0ubuntu2.102.20.1-0ubuntu2.122.20.1-0ubuntu2.132.20.1-0ubuntu2.142.20.1-0ubuntu2.152.20.1-0ubuntu2.162.20.1-0ubuntu2.172.20.1-0ubuntu2.182.20.1-0ubuntu2.19 |
2.20.1-0ubuntu2.20 |
apportUbuntu:18.04:LTS |
before 2.20.9-0ubuntu7.8, plus listed versions 2.20.7-0ubuntu32.20.7-0ubuntu3.12.20.7-0ubuntu42.20.8-0ubuntu12.20.8-0ubuntu2 Show 21 moreShow less2.20.8-0ubuntu32.20.8-0ubuntu42.20.8-0ubuntu52.20.8-0ubuntu62.20.8-0ubuntu72.20.8-0ubuntu82.20.8-0ubuntu92.20.8-0ubuntu102.20.9-0ubuntu12.20.9-0ubuntu22.20.9-0ubuntu42.20.9-0ubuntu52.20.9-0ubuntu62.20.9-0ubuntu72.20.9-0ubuntu7.12.20.9-0ubuntu7.22.20.9-0ubuntu7.32.20.9-0ubuntu7.42.20.9-0ubuntu7.52.20.9-0ubuntu7.62.20.9-0ubuntu7.7 |
2.20.9-0ubuntu7.8 |
apportUbuntu:16.04:LTS From an advisory covering 5 CVEs |
before 2.20.1-0ubuntu2.20, plus listed versions 2.19.1-0ubuntu32.19.2-0ubuntu12.19.2-0ubuntu22.19.2-0ubuntu32.19.2-0ubuntu4 Show 28 moreShow less2.19.2-0ubuntu52.19.2-0ubuntu62.19.2-0ubuntu82.19.2-0ubuntu92.19.3-0ubuntu12.19.3-0ubuntu22.19.3-0ubuntu32.19.4-0ubuntu12.19.4-0ubuntu22.20-0ubuntu22.20-0ubuntu32.20.1-0ubuntu12.20.1-0ubuntu22.20.1-0ubuntu2.12.20.1-0ubuntu2.22.20.1-0ubuntu2.42.20.1-0ubuntu2.52.20.1-0ubuntu2.62.20.1-0ubuntu2.92.20.1-0ubuntu2.102.20.1-0ubuntu2.122.20.1-0ubuntu2.132.20.1-0ubuntu2.142.20.1-0ubuntu2.152.20.1-0ubuntu2.162.20.1-0ubuntu2.172.20.1-0ubuntu2.182.20.1-0ubuntu2.19 |
2.20.1-0ubuntu2.20 |
apportUbuntu:18.04:LTS From an advisory covering 5 CVEs |
before 2.20.9-0ubuntu7.8, plus listed versions 2.20.7-0ubuntu32.20.7-0ubuntu3.12.20.7-0ubuntu42.20.8-0ubuntu12.20.8-0ubuntu2 Show 21 moreShow less2.20.8-0ubuntu32.20.8-0ubuntu42.20.8-0ubuntu52.20.8-0ubuntu62.20.8-0ubuntu72.20.8-0ubuntu82.20.8-0ubuntu92.20.8-0ubuntu102.20.9-0ubuntu12.20.9-0ubuntu22.20.9-0ubuntu42.20.9-0ubuntu52.20.9-0ubuntu62.20.9-0ubuntu72.20.9-0ubuntu7.12.20.9-0ubuntu7.22.20.9-0ubuntu7.32.20.9-0ubuntu7.42.20.9-0ubuntu7.52.20.9-0ubuntu7.62.20.9-0ubuntu7.7 |
2.20.9-0ubuntu7.8 |
apportUbuntu:Pro:14.04:LTS From an advisory covering 5 CVEs |
before 2.14.1-0ubuntu3.29+esm2, plus listed versions 2.12.5-0ubuntu22.12.6-0ubuntu12.12.7-0ubuntu12.12.7-0ubuntu22.12.7-0ubuntu3 Show 38 moreShow less2.12.7-0ubuntu62.13.1-0ubuntu12.13.1-0ubuntu22.13.2-0ubuntu22.13.2-0ubuntu32.13.2-0ubuntu42.13.2-0ubuntu52.13.3-0ubuntu12.14-0ubuntu12.14.1-0ubuntu12.14.1-0ubuntu22.14.1-0ubuntu32.14.1-0ubuntu3.12.14.1-0ubuntu3.22.14.1-0ubuntu3.32.14.1-0ubuntu3.42.14.1-0ubuntu3.52.14.1-0ubuntu3.62.14.1-0ubuntu3.72.14.1-0ubuntu3.82.14.1-0ubuntu3.92.14.1-0ubuntu3.102.14.1-0ubuntu3.112.14.1-0ubuntu3.122.14.1-0ubuntu3.132.14.1-0ubuntu3.152.14.1-0ubuntu3.162.14.1-0ubuntu3.182.14.1-0ubuntu3.192.14.1-0ubuntu3.202.14.1-0ubuntu3.212.14.1-0ubuntu3.232.14.1-0ubuntu3.242.14.1-0ubuntu3.252.14.1-0ubuntu3.272.14.1-0ubuntu3.282.14.1-0ubuntu3.292.14.1-0ubuntu3.29+esm1 |
2.14.1-0ubuntu3.29+esm2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-11482 is a medium vulnerability (CVSS 4.2) in Apport Project Apport, published October 29, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.23%, the 14th percentile. Fixed in apport 2.14.1-0ubuntu3.29+esm2.