CVE-2021-28153
Publication date 11 March 2021
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
An issue was discovered in GNOME GLib before 2.66.8. When g_file_replace() is used with G_FILE_CREATE_REPLACE_DESTINATION to replace a path that is a dangling symlink, it incorrectly also creates the target of the symlink as an empty file, which could conceivably have security relevance if the symlink is attacker-controlled. (If the path is a symlink to a file that already exists, then the contents of that file correctly remain unchanged.)
Status
Package | Ubuntu Release | Status |
---|---|---|
glib2.0 | 24.04 LTS noble |
Not affected
|
22.04 LTS jammy |
Not affected
|
|
20.04 LTS focal |
Fixed 2.64.6-1~ubuntu20.04.3
|
|
18.04 LTS bionic |
Fixed 2.56.4-0ubuntu0.18.04.8
|
|
16.04 LTS xenial |
Fixed 2.48.2-0ubuntu4.8
|
|
14.04 LTS trusty |
Vulnerable
|
Patch details
Package | Patch details |
---|---|
glib2.0 |
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.3 · Medium |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | Low |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
References
Related Ubuntu Security Notices (USN)
- USN-4764-1
- GLib vulnerability
- 15 March 2021