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
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 |