CVE-2021-27219
Published: 15 February 2021
An issue was discovered in GNOME GLib before 2.66.6 and 2.67.x before 2.67.3. The function g_bytes_new has an integer overflow on 64-bit platforms due to an implicit cast from 64 bits to 32 bits. The overflow could potentially lead to memory corruption.
Notes
Author | Note |
---|---|
mdeslaur | see gnome bug for multiple regression fixes solved in 2.66.7 Upstream fixed this in 2.67 by adding a new g_memdup2() function and deprecating g_memdup(). For the 2.66 stable release, they added g_memdup2(), but in a private manner so that internal uses of g_memdup() could be switched, but this won't fix external applications. |
Priority
Status
Package | Release | Status |
---|---|---|
glib2.0 Launchpad, Ubuntu, Debian |
bionic |
Released
(2.56.4-0ubuntu0.18.04.7)
|
focal |
Released
(2.64.6-1~ubuntu20.04.2)
|
|
groovy |
Released
(2.66.1-2ubuntu0.1)
|
|
hirsute |
Not vulnerable
(2.67.5-2)
|
|
impish |
Not vulnerable
(2.67.5-2)
|
|
jammy |
Not vulnerable
(2.67.5-2)
|
|
kinetic |
Not vulnerable
(2.67.5-2)
|
|
lunar |
Not vulnerable
(2.67.5-2)
|
|
mantic |
Not vulnerable
(2.67.5-2)
|
|
trusty |
Needed
|
|
upstream |
Released
(2.66.6-1, 2.67.3)
|
|
xenial |
Released
(2.48.2-0ubuntu4.7)
|
|
Patches: upstream: https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1926 upstream: https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1927 upstream: https://gitlab.gnome.org/GNOME/glib/-/commit/e8fe1d51fe07f506211680c76145eea737f4bf30 upstream: https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1933 upstream: https://gitlab.gnome.org/GNOME/glib/-/commit/00b181fa84f2d836f7f4401c0cd08f38e5b39167 upstream: https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1943 upstream: https://gitlab.gnome.org/GNOME/glib/-/commit/b34d68b672c35042b7d7334590e1e0cd653f3826 |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |