CVE-2015-8630
Published: 13 February 2016
The (1) kadm5_create_principal_3 and (2) kadm5_modify_principal functions in lib/kadm5/srv/svr_principal.c in kadmind in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.4 and 1.14.x before 1.14.1 allow remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) by specifying KADM5_POLICY with a NULL policy name.
From the Ubuntu Security Team
It was discovered that Kerberos incorrectly handled policy names. A remote authenticated attacker could possibly use this issue to cause a denial of service.
Notes
Author | Note |
---|---|
mdeslaur | introduced in 1.12 |
ratliff | use of kadmind is not supported in touch and core |
Priority
Status
Package | Release | Status |
---|---|---|
krb5 Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(1.14.3+dfsg-2ubuntu1)
|
bionic |
Not vulnerable
(1.14.3+dfsg-2ubuntu1)
|
|
cosmic |
Not vulnerable
(1.14.3+dfsg-2ubuntu1)
|
|
precise |
Not vulnerable
(1.10+dfsg~beta1-2ubuntu0.7)
|
|
trusty |
Released
(1.12+dfsg-2ubuntu5.4)
|
|
upstream |
Released
(1.14+dfsg-1)
|
|
vivid |
Ignored
(end of life)
|
|
wily |
Ignored
(end of life)
|
|
xenial |
Not vulnerable
(1.13.2+dfsg-5)
|
|
yakkety |
Not vulnerable
(1.14.3+dfsg-2ubuntu1)
|
|
zesty |
Not vulnerable
(1.14.3+dfsg-2ubuntu1)
|
|
Patches: upstream: https://github.com/krb5/krb5/commit/b863de7fbf080b15e347a736fdda0a82d42f4f6b |
||
Binaries built from this source package are in Universe and so are supported by the community. |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |