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CVE-2019-7307

Status Candidate

Overview

Apport before versions 2.14.1-0ubuntu3.29+esm1, 2.20.1-0ubuntu2.19, 2.20.9-0ubuntu7.7, 2.20.10-0ubuntu27.1, 2.20.11-0ubuntu5 contained a TOCTTOU vulnerability when reading the users ~/.apport-ignore.xml file, which allows a local attacker to replace this file with a symlink to any other file on the system and so cause Apport to include the contents of this other file in the resulting crash report. The crash report could then be read by that user either by causing it to be uploaded and reported to Launchpad, or by leveraging some other vulnerability to read the resulting crash report, and so allow the user to read arbitrary files on the system.

Related Files

Ubuntu Security Notice USN-4051-2
Posted Jul 9, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4051-2 - USN-4051-1 fixed a vulnerability in apport. This update provides the corresponding update for Ubuntu 14.04 ESM. Kevin Backhouse discovered a race-condition when reading the user's local Apport configuration. This could be used by a local attacker to cause Apport to include arbitrary files in a resulting crash report. Various other issues were also addressed.

tags | advisory, arbitrary, local
systems | linux, ubuntu
advisories | CVE-2019-7307
MD5 | 733b6aa2acd3d9fb477fc75c12b7e718
Ubuntu Security Notice USN-4051-1
Posted Jul 9, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4051-1 - Kevin Backhouse discovered a race-condition when reading the user's local Apport configuration. This could be used by a local attacker to cause Apport to include arbitrary files in a resulting crash report.

tags | advisory, arbitrary, local
systems | linux, ubuntu
advisories | CVE-2019-7307
MD5 | 23144505a813252b7919bf5f1a86185f
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