Vulnerability CVE-2008-5744
Published: 2008-12-26   Modified: 2012-02-12

Description:
Array index error in the dahdi/tor2.c driver 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 an incorrect tor2 patch for CVE-2008-5396 that uses the wrong variable in a range check against the value of lc->sync.

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:
https://bugzilla.redhat.com/show_bug.cgi?id=475446#c4
http://xforce.iss.net/xforce/xfdb/47666
http://www.openwall.com/lists/oss-security/2008/12/19/2
http://svn.digium.com/view/dahdi?view=rev&revision=5590
http://secunia.com/advisories/32960
http://bugs.digium.com/view.php?id=13954#96700
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