CVE-2021-28153
Published: 11 March 2021
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.)
Priority
Status
| Package | Release | Status |
|---|---|---|
|
glib2.0 Launchpad, Ubuntu, Debian |
bionic |
Released
(2.56.4-0ubuntu0.18.04.8)
|
| focal |
Released
(2.64.6-1~ubuntu20.04.3)
|
|
| groovy |
Released
(2.66.1-2ubuntu0.2)
|
|
| hirsute |
Not vulnerable
(2.68.0-1)
|
|
| impish |
Not vulnerable
(2.68.0-1)
|
|
| jammy |
Not vulnerable
(2.68.0-1)
|
|
| kinetic |
Not vulnerable
(2.68.0-1)
|
|
| lunar |
Not vulnerable
(2.68.0-1)
|
|
| trusty |
Needed
|
|
| upstream |
Released
(2.67.6)
|
|
| xenial |
Released
(2.48.2-0ubuntu4.8)
|
|
|
Patches: upstream: https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1981 (master) upstream: https://gitlab.gnome.org/GNOME/glib/-/commit/c80528f17ba25ea7d7089946926b93a98bd1479e (master) upstream: https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1982 (2.66) upstream: https://gitlab.gnome.org/GNOME/glib/-/commit/01c5468e10707cbf78e6e83bbcf1ce9c866f2885 (2.66) |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.3 |
| 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 |