Resource Management Errors Affecting asterisk package, versions <1:1.6.2.0~dfsg~rc1-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
3.9% (93rd percentile)

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  • Snyk IDSNYK-DEBIAN11-ASTERISK-520975
  • published12 Aug 2009
  • disclosed12 Aug 2009

Introduced: 12 Aug 2009

CVE-2009-2726  (opens in a new tab)
CWE-399  (opens in a new tab)

How to fix?

Upgrade Debian:11 asterisk to version 1:1.6.2.0dfsgrc1-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream asterisk package and not the asterisk package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

The SIP channel driver in Asterisk Open Source 1.2.x before 1.2.34, 1.4.x before 1.4.26.1, 1.6.0.x before 1.6.0.12, and 1.6.1.x before 1.6.1.4; Asterisk Business Edition A.x.x, B.x.x before B.2.5.9, C.2.x before C.2.4.1, and C.3.x before C.3.1; and Asterisk Appliance s800i 1.2.x before 1.3.0.3 does not use a maximum width when invoking sscanf style functions, which allows remote attackers to cause a denial of service (stack memory consumption) via SIP packets containing large sequences of ASCII decimal characters, as demonstrated via vectors related to (1) the CSeq value in a SIP header, (2) large Content-Length value, and (3) SDP.

CVSS Scores

version 3.1