Secunia Security Advisory - ISS X-Force has reported a vulnerability in Sendmail, which can be exploited by malicious people to compromise a vulnerable system.
7b9e8be3b245329a04081357d271d288de07f33a26f2b3420d100bf6118e514d
TITLE:
Sendmail Signal Handling Memory Corruption Vulnerability
SECUNIA ADVISORY ID:
SA19342
VERIFY ADVISORY:
https://secunia.com/advisories/19342/
CRITICAL:
Highly critical
IMPACT:
System access
WHERE:
>From remote
OPERATING SYSTEM:
Sendmail Sentrion 1.x
https://secunia.com/product/8865/
SOFTWARE:
Sendmail Switch 3.x
https://secunia.com/product/1196/
Sendmail Switch 2.x
https://secunia.com/product/1197/
Sendmail Multi-Switch 3.x
https://secunia.com/product/8871/
Sendmail Multi-Switch 2.x
https://secunia.com/product/8870/
Sendmail Message Store/SAMS 2.x
https://secunia.com/product/8869/
Sendmail Message Store/SAMS 1.x
https://secunia.com/product/1198/
Sendmail Managed MTA 3.x
https://secunia.com/product/8867/
Sendmail Managed MTA 2.x
https://secunia.com/product/8866/
Sendmail 8.x
https://secunia.com/product/145/
Intelligent Quarantine 3.x
https://secunia.com/product/8872/
DESCRIPTION:
ISS X-Force has reported a vulnerability in Sendmail, which can be
exploited by malicious people to compromise a vulnerable system.
The vulnerability is caused due to a signal handling error when
receiving and processing mail data from clients. This can be
exploited to corrupt memory by sending specially crafted data at
certain time intervals.
Successful exploitation allows execution of arbitrary code with the
privileges of the sendmail server daemon.
The vulnerability has been reported in the following products:
* Sendmail 8.13.5 and prior
* Sendmail 8.12.11 and prior
* Sendmail Sentrion 1.1
* Sendmail Switch 2.x, 3.0.x, and 3.1.x (Solaris, Linux, AIX, and
HP-UX)
* Sendmail Managed MTA 2.x, 3.0.x, and 3.1.x (Solaris, Linux, AIX,
and HP-UX)
* Sendmail Multi-Switch 2.x, 3.0.x, and 3.1.x (Solaris, Linux, AIX,
and HP-UX)
* Sendmail Message Store/SAMS 1.2.x, 2.0.x, 2.1.x, and 2.2.x
(Solaris, Linux, AIX, and HP-UX)
* Intelligent Quarantine 3.0 (Solaris or Linux)
SOLUTION:
Update to version 8.13.6 or apply patch.
Patch for version 8.13.5:
ftp://ftp.sendmail.org/pub/sendmail/8.13.5.p0
Patch for version 8.12.11:
ftp://ftp.sendmail.org/pub/sendmail/8.12.11.p0
Users of the commercial products should see the patch matrix in the
vendor advisory for details.
PROVIDED AND/OR DISCOVERED BY:
Mark Dowd, ISS X-Force.
ORIGINAL ADVISORY:
ISS X-Force:
https://xforce.iss.net/xforce/alerts/id/216
Sendmail.org:
https://www.sendmail.org/8.13.6.html
Sendmail.com:
https://www.sendmail.com/company/advisory/
OTHER REFERENCES:
US-CERT VU#834865:
https://www.kb.cert.org/vuls/id/834865
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About:
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