CVE-2020-28010
Published: 4 May 2021
Exim 4 before 4.94.2 allows Out-of-bounds Write because the main function, while setuid root, copies the current working directory pathname into a buffer that is too small (on some common platforms).
Notes
Author | Note |
---|---|
leosilva | code introduced later, xenial and trusty ESM not affected |
Priority
Status
Package | Release | Status |
---|---|---|
exim4 Launchpad, Ubuntu, Debian |
bionic |
Released
(4.90.1-1ubuntu1.8)
|
focal |
Released
(4.93-13ubuntu1.5)
|
|
groovy |
Released
(4.94-7ubuntu1.2)
|
|
hirsute |
Released
(4.94-15ubuntu1.2)
|
|
impish |
Released
(4.94-15ubuntu1.2)
|
|
jammy |
Released
(4.94-15ubuntu1.2)
|
|
trusty |
Not vulnerable
|
|
upstream |
Needs triage
|
|
xenial |
Not vulnerable
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.8 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |