Ubuntu.comUB:CVE-2016-9401CVE-2016-9401
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
0.0004 Low
EPSS
Percentile
5.3%
popd in bash might allow local users to bypass the restricted shell and
cause a use-after-free via a crafted address.
Bugs
Notes
| Author | Note |
|---|---|
| sbeattie | not sure how this has security impact |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 17.10 | noarch | bash | < 4.4-5ubuntu1 | UNKNOWN |
| ubuntu | 18.04 | noarch | bash | < 4.4-5ubuntu1 | UNKNOWN |
| ubuntu | 18.10 | noarch | bash | < 4.4-5ubuntu1 | UNKNOWN |
| ubuntu | 19.04 | noarch | bash | < 4.4-5ubuntu1 | UNKNOWN |
| ubuntu | 19.10 | noarch | bash | < 4.4-5ubuntu1 | UNKNOWN |
| ubuntu | 20.04 | noarch | bash | < 4.4-5ubuntu1 | UNKNOWN |
| ubuntu | 20.10 | noarch | bash | < 4.4-5ubuntu1 | UNKNOWN |
| ubuntu | 21.04 | noarch | bash | < 4.4-5ubuntu1 | UNKNOWN |
| ubuntu | 14.04 | noarch | bash | < 4.3-7ubuntu1.7 | UNKNOWN |
| ubuntu | 16.04 | noarch | bash | < 4.3-14ubuntu1.2 | UNKNOWN |
Related
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
0.0004 Low
EPSS
Percentile
5.3%