UbuntuUSN-334-1krb5 vulnerabilities
CVSS2
Attack Vector
LOCAL
Attack 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
AI Score
Confidence
Low
EPSS
Percentile
28.2%
Releases
- Ubuntu 6.06
- Ubuntu 5.10
- Ubuntu 5.04
Details
Michael Calmer and Marcus Meissner discovered that several krb5 tools
did not check the return values from setuid() system calls. On systems
that have configured user process limits, it may be possible for an
attacker to cause setuid() to fail via resource starvation. In that
situation, the tools will not reduce their privilege levels, and will
continue operation as the root user.
By default, Ubuntu does not ship with user process limits.
Please note that these packages are not officially supported by Ubuntu
(they are in the ‘universe’ component of the archive).
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Ubuntu | 6.06 | noarch | krb5-clients | < 1.4.3-5ubuntu0.1 | UNKNOWN |
| Ubuntu | 6.06 | noarch | krb5-rsh-server | < 1.4.3-5ubuntu0.1 | UNKNOWN |
| Ubuntu | 6.06 | noarch | krb5-ftpd | < 1.4.3-5ubuntu0.1 | UNKNOWN |
| Ubuntu | 6.06 | noarch | krb5-user | < 1.4.3-5ubuntu0.1 | UNKNOWN |
| Ubuntu | 5.10 | noarch | krb5-clients | < 1.3.6-4ubuntu0.1 | UNKNOWN |
| Ubuntu | 5.10 | noarch | krb5-rsh-server | < 1.3.6-4ubuntu0.1 | UNKNOWN |
| Ubuntu | 5.10 | noarch | krb5-ftpd | < 1.3.6-4ubuntu0.1 | UNKNOWN |
| Ubuntu | 5.10 | noarch | krb5-user | < 1.3.6-4ubuntu0.1 | UNKNOWN |
| Ubuntu | 5.04 | noarch | krb5-clients | < 1.3.6-1ubuntu0.2 | UNKNOWN |
| Ubuntu | 5.04 | noarch | krb5-rsh-server | < 1.3.6-1ubuntu0.2 | UNKNOWN |
Related
CVSS2
Attack Vector
LOCAL
Attack 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
AI Score
Confidence
Low
EPSS
Percentile
28.2%