8.4 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.2 High
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
49.8%
An old attack vector has been corrected in bash, a sh-compatible
command language interpreter.
The setuid binary had to both use setuid() function call in
combination with a system() or popen() function call. With this
combination it is possible to gain root access.
I addition bash have to be the default shell (/bin/sh have to point
to bash) for the system to be vulnerable.
The default shell in Debian is dash and there are no known setuid
binaries in Debian with the, above described, insecure combination.
There could however be local software with the, above described,
insecure combination that could benefit from this correction.
For Debian 7 Wheezy, this problem have been fixed in version
4.2+dfsg-0.1+deb7u3.
We recommend that you upgrade your bash packages.
If there are local software that have the insecure combination and
do a setuid() to some other user than root, then the update will not
correct that problem. That problem have to be addressed in the
insecure setuid binary.
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: <https://wiki.debian.org/LTS>
CPE | Name | Operator | Version |
---|---|---|---|
bash | eq | 4.2+dfsg-0.1 | |
bash | eq | 4.2+dfsg-0.1+deb7u1 | |
bash | eq | 4.2+dfsg-0.1+deb7u2 | |
bash | eq | 4.2+dfsg-0.1+deb7u3 |
8.4 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.2 High
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
49.8%