Vulnerability CVE-2008-5396
Published: 2008-12-08   Modified: 2012-02-12

Description:
Array index error in the (1) torisa.c and (2) dahdi/tor2.c drivers in Zaptel (aka DAHDI) 1.4.11 and earlier allows local users in the dialout group to overwrite an integer value in kernel memory by writing to /dev/zap/ctl, related to missing validation of the sync field associated with the ZT_SPANCONFIG ioctl.

Type:

CWE-189

 (Numeric Errors)

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Asterisk -> Zaptel 

 References:
http://www.openwall.com/lists/oss-security/2008/12/03/10
http://secunia.com/advisories/32960
http://secunia.com/advisories/32947
http://bugs.digium.com/view.php?id=13954
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=507459
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