Buffer overflow in the unpacksms16 function in apps/app_sms.c in
Asterisk Open Source 1.8.x before 188.8.131.52, 10.x before 10.12.4, and
11.x before 11.6.1; Asterisk with Digiumphones 10.x-digiumphones
before 10.12.4-digiumphones; and Certified Asterisk 1.8.x before
1.8.15-cert4 and 11.x before 11.2-cert3 allows remote attackers to
cause a denial of service (daemon crash) via a 16-bit SMS message with
an odd number of bytes, which triggers an infinite loop.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
BUGTRAQ:20131216 AST-2013-006: Buffer Overflow when receiving odd length 16 bit SMS message
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