10 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
0.965 High
EPSS
Percentile
99.6%
The MIT Kerberos administration daemon (kadmind
) can free an uninitialized pointer, which may allow a remote, unauthenticated attacker to execute arbitrary code or cause a denial of service.
The gssrpc__svcauth_gssapi()
function used by the Kerberos administration daemon can free an uninitialized pointer when receiving a specially crafted RPC request. This vulnerability may cause memory corruption that could allow a remote, unauthenticated user to execute arbitrary code. According to MIT krb5 Security Advisory MITKRB5-SA-2007-004:
_The function gssrpc__svcauth_gssapi() in src/lib/rpc/svc_auth_gssapi.c declares an automatic variable “creds” of type auth_gssapi_creds. This type includes a gss_buffer_desc (which includes a pointer to void used as a pointer to a buffer of bytes). If gssrpc__svcauth_gssapi() receives an RPC credential with a length of zero, it jumps to the label “error”, which executes some cleanup code. At this point, the gss_buffer_desc in “creds” is not yet initialized, and the cleanup code calls xdr_free() on “creds”, which then attempts to free the memory pointed to by the uninitialized “value” member of the gss_buffer_desc. _
Exploitation of freeing of invalid pointers is believed to be difficult, and depends on a variety of factors specific to a given malloc implementation.
Note that this issue affects all releases of MIT krb5 up to and including krb5-1.6.1. MIT has been provided with proof-of-concept exploit code that causes a denial of service, but it’s not clear whether the exploit code is publicly available yet.
This vulnerability occurred as a result of failing to comply with rule EXP33-C of the CERT C Programming Language Secure Coding Standard.
A remote, unauthenticated user may be able to execute arbitrary code on an affected system or cause the affected program to crash, resulting in a denial of service. Secondary impacts of code execution include complete compromise of the Kerberos key database.
Apply a patch
A patch can be obtained from MIT krb5 Security Advisory MITKRB5-SA-2007-004. MIT also states that this will be addressed in the upcoming krb5-1.6.2 and krb5-1.5.4 releases.
356961
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Notified: June 18, 2007 Updated: July 30, 2007
Affected
These vulnerabilities have been fixed in Debian GNU/Linux 4.0 (stable) in version 1.4.4-7etch2. and for Debian GNU/Linux 3.1 (oldstable) in version 1.3.6-2sarge5 via Debian Security Advisory 1323 as in <<http://www.debian.org/security/2007/dsa-1323>>
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 26, 2007
Affected
These issues affect the krb5-server package available for Red Hat
Enterprise Linux 2.1, 3, 4, and 5. Updated packages to correct this
issue are available along with our advisories at the URLs below and
via Red Hat Network.
Red Hat Enterprise Linux 2.1, 3:
<https://rhn.redhat.com/errata/RHSA-2007-0384.html>
Red Hat Enterprise Linux 4, 5:
<https://rhn.redhat.com/errata/RHSA-2007-0562.html>
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 28, 2007
Affected
Sun can confirm that Solaris 8, 9, and 10 are affected by the issue
described in CERT advisory VU#356961.
Sun has published Sun Alert 102914 which includes details of the
Solaris specific impact, contributing factors, workaround options
and resolution information, and is available here:
<http://sunsolve.sun.com/search/document.do?assetkey=1-26-102914-1>
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Not Affected
The vulnerabilities referenced in VU#356961 do not apply to CyberSafe products, including all versions of TrustBroker, ActiveTRUST and Challenger products.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 19, 2007
Not Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Updated: June 27, 2007
Not Affected
NetApp does not ship kadmind.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 26, 2007
Unknown
Juniper Networks products do not use Kerberos, and are therefore not susceptible to this set of vulnerabilities.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 13, 2007 Updated: June 13, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 27, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Please see Mandriva Advisory MDKSA-2007:137.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23356961 Feedback>).
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 27, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Please see Ubuntu Security Notice USN-477-1.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23356961 Feedback>).
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Notified: June 18, 2007 Updated: June 18, 2007
Unknown
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
View all 45 vendors __View less vendors __
Group | Score | Vector |
---|---|---|
Base | ||
Temporal | ||
Environmental |
Thanks to MIT for reporting this vulnerability, who in turn credit Wei Wang of McAfee Avert Labs.
This document was written by Will Dormann.
CVE IDs: | CVE-2007-2442 |
---|---|
Severity Metric: | 5.40 Date Public: |