CVE-2019-20433
Published: 27 January 2020
libaspell.a in GNU Aspell before 0.60.8 has a buffer over-read for a string ending with a single '\0' byte, if the encoding is set to ucs-2 or ucs-4 outside of the application, as demonstrated by the ASPELL_CONF environment variable.
Notes
| Author | Note |
|---|---|
| leosilva | the fix proposed can potentially break applications that depends on it. |
| mdeslaur | need to regenerate files after applying patch, see debian bug. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
aspell Launchpad, Ubuntu, Debian |
bionic |
Needed
|
| eoan |
Not vulnerable
(0.60.7-3ubuntu0.1)
|
|
| focal |
Not vulnerable
|
|
| groovy |
Not vulnerable
|
|
| hirsute |
Not vulnerable
|
|
| impish |
Not vulnerable
|
|
| jammy |
Not vulnerable
|
|
| kinetic |
Not vulnerable
|
|
| lunar |
Not vulnerable
|
|
| mantic |
Not vulnerable
|
|
| trusty |
Needed
|
|
| upstream |
Released
(0.60.7-3)
|
|
| xenial |
Ignored
(proposed fix would break other applications)
|
|
|
Patches: upstream: https://github.com/GNUAspell/aspell/commit/de29341638833ba7717bd6b5e6850998454b044b upstream: https://github.com/GNUAspell/aspell/commit/cefd447e5528b08bb0cd6656bc52b4255692cefc |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.1 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |