OpenPKG Information for VU#993452
Sendmail fails to appropriately initialize data structures for DNS maps
- Vendor Information Help Date Notified:
- Statement Date:
- Date Updated: 28 Aug 2003
Please see the vendor statement for VU#993452 at:
The vendor has not provided us with any further information regarding this vulnerability.
Text of statement for VU#993452 follows:
-----BEGIN PGP SIGNED MESSAGE-----
OpenPKG Security Advisory The OpenPKG Project
Vulnerability: Denial of Service
OpenPKG Specific: no
Affected Releases: Affected Packages: Corrected Packages:
OpenPKG CURRENT none N.A.
OpenPKG 1.3 none N.A.
OpenPKG 1.2 <= sendmail-8.12.7-1.2.2 >= sendmail-8.12.7-1.2.3
Dependent Packages: none
Oleg Bulyzhin reported to FreeBSD  a confirmed  Denial of
Service (DoS) vulnerability in all version of the Sendmail MTA 
earlier than 8.12.9. Due to a wrong initialization of an internal
structure, if Sendmail gets a bad DNS reply (with actual reply size
not equal the announced reply size), it later calls free() on a random
address. This usually cause Sendmail to crash.
Please check whether you are affected by running "<prefix>/bin/rpm
-q sendmail". If you have the "sendmail" package installed and its
version is affected (see above), we recommend that you immediately
upgrade it (see Solution). 
Select the updated source RPM appropriate for your OpenPKG release
, fetch it from the OpenPKG FTP service  or a mirror location,
verify its integrity , build a corresponding binary RPM from it 
and update your OpenPKG installation by applying the binary RPM .
For the affected release OpenPKG 1.2, perform the following operations
to permanently fix the security problem (for other releases adjust
$ ftp ftp.openpkg.org
ftp> cd release/1.2/UPD
ftp> get sendmail-8.12.7-1.2.3.src.rpm
$ <prefix>/bin/rpm -v --checksig sendmail-8.12.7-1.2.3.src.rpm
$ <prefix>/bin/rpm --rebuild sendmail-8.12.7-1.2.3.src.rpm
$ su -
# <prefix>/bin/rpm -Fvh <prefix>/RPM/PKG/sendmail-8.12.7-1.2.3.*.rpm
For security reasons, this advisory was digitally signed with the
OpenPGP public key "OpenPKG <firstname.lastname@example.org>" (ID 63C4CB9F) of the
OpenPKG project which you can retrieve from http://pgp.openpkg.org and
hkp://pgp.openpkg.org. Follow the instructions on http://pgp.openpkg.org/
for details on how to verify the integrity of this advisory.
-----BEGIN PGP SIGNATURE-----
Comment: OpenPKG <email@example.com>
-----END PGP SIGNATURE-----
If you have feedback, comments, or additional information about this vulnerability, please send us email.