CVE-2017-17090 - Incomplete Cleanup

Severity

50%

Complexity

99%

Confidentiality

48%

An issue was discovered in chan_skinny.c in Asterisk Open Source 13.18.2 and older, 14.7.2 and older, and 15.1.2 and older, and Certified Asterisk 13.13-cert7 and older. If the chan_skinny (aka SCCP protocol) channel driver is flooded with certain requests, it can cause the asterisk process to use excessive amounts of virtual memory, eventually causing asterisk to stop processing requests of any kind.

An issue was discovered in chan_skinny.c in Asterisk Open Source 13.18.2 and older, 14.7.2 and older, and 15.1.2 and older, and Certified Asterisk 13.13-cert7 and older. If the chan_skinny (aka SCCP protocol) channel driver is flooded with certain requests, it can cause the asterisk process to use excessive amounts of virtual memory, eventually causing asterisk to stop processing requests of any kind.

CVSS 3.0 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

CVSS 2.0 Base Score 5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P).

Demo Examples

Incomplete Cleanup

CWE-459

Stream resources in a Java application should be released in a finally block, otherwise an exception thrown before the call to close() would result in an unreleased I/O resource. In the example below, the close() method is called in the try block (incorrect).


               
}
is.close();
log.error("Something bad happened: " + t.getMessage());

Overview

Type

Digium Certified Asterisk 13.13

First reported 7 years ago

2017-12-02 00:29:00

Last updated 5 years ago

2019-10-03 00:03:00

Affected Software

Digium Certified Asterisk 13.13 Cert2

13.13

Digium Certified Asterisk 13.13 Cert3

13.13

Digium Certified Asterisk 13.13 Cert4

13.13

Digium Certified Asterisk 13.13 Cert5

13.13

Digium Certified Asterisk 13.13 Cert6

13.13

Digium Certified Asterisk 13.13 Cert7

13.13

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