CVE-2017-18196
Published: 23 February 2018
Leptonica 1.74.4 constructs unintended pathnames (containing duplicated path components) when operating on files in /tmp subdirectories, which might allow local users to bypass intended file restrictions by leveraging access to a directory located deeper within the /tmp directory tree, as demonstrated by /tmp/ANY/PATH/ANY/PATH/input.tif.
From the Ubuntu Security Team
It was discovered that Leptonica incorrectly handled path names. An attacker could possibly use this issue to obtain sensitive information.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
leptonlib Launchpad, Ubuntu, Debian |
artful |
Ignored
(end of life)
|
| bionic |
Not vulnerable
(1.75.3-2)
|
|
| cosmic |
Not vulnerable
(1.75.3-2)
|
|
| disco |
Not vulnerable
(1.75.3-2)
|
|
| eoan |
Not vulnerable
(1.75.3-2)
|
|
| focal |
Not vulnerable
(1.75.3-2)
|
|
| groovy |
Not vulnerable
(1.75.3-2)
|
|
| hirsute |
Not vulnerable
(1.75.3-2)
|
|
| impish |
Not vulnerable
(1.75.3-2)
|
|
| jammy |
Not vulnerable
(1.75.3-2)
|
|
| trusty |
Not vulnerable
(code not present)
|
|
| upstream |
Released
(1.74.4-2)
|
|
| xenial |
Released
(1.73-1ubuntu0.1~esm1)
Available with Ubuntu Pro |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 3.3 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | Low |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |