CVE-2019-7307CWE-367

Apport contains a TOCTTOU vulnerability when reading the users ~/.apport-ignore.xml

Medium · published August 29, 2019

CVSS v3.0
6.5
EPSS
0%
Percentile
24.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.0
6.5 · MEDIUM
Vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00326 · 24.5th percentile
Weakness
CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition
Published
2019-08-29T14:40Z
EPSS history
Timeline
  • 29 AUG 14:40Z
    Apport contains a TOCTTOU vulnerability when reading the users ~/.apport-ignore.xml
    cvelistv5