CVE-2019-9924
Published: 22 March 2019
rbash in Bash before 4.4-beta2 did not prevent the shell user from modifying BASH_CMDS, thus allowing the user to execute any command with the permissions of the shell.
Priority
Status
Package | Release | Status |
---|---|---|
bash Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.4.18-2ubuntu1)
|
cosmic |
Not vulnerable
|
|
disco |
Not vulnerable
|
|
trusty |
Released
(4.3-7ubuntu1.8+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
upstream |
Released
(4.4-1)
|
|
xenial |
Released
(4.3-14ubuntu1.4)
|
|
Patches: upstream: http://git.savannah.gnu.org/cgit/bash.git/commit/?h=bash-4.4-testing&id=a4eef1991c25c9d1c55f777952cd522c762c6fc3 |
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 |
References
- http://git.savannah.gnu.org/cgit/bash.git/tree/CHANGES?h=bash-4.4-testing#n65
- https://lists.gnu.org/archive/html/bug-bash/2017-03/msg00077.html
- https://ubuntu.com/security/notices/USN-4058-1
- https://ubuntu.com/security/notices/USN-4058-2
- https://www.cve.org/CVERecord?id=CVE-2019-9924
- NVD
- Launchpad
- Debian