CVE-2008-1897

NameCVE-2008-1897
DescriptionThe IAX2 channel driver (chan_iax2) in Asterisk Open Source 1.0.x, 1.2.x before 1.2.28, and 1.4.x before 1.4.19.1; Business Edition A.x.x, B.x.x before B.2.5.2, and C.x.x before C.1.8.1; AsteriskNOW before 1.0.3; Appliance Developer Kit 0.x.x; and s800i before 1.1.0.3, when configured to allow unauthenticated calls, does not verify that an ACK response contains a call number matching the server's reply to a NEW message, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed ACK response that does not complete a 3-way handshake. NOTE: this issue exists because of an incomplete fix for CVE-2008-1923.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-1563-1
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
asterisk (PTS)wheezy1:1.8.13.1~dfsg1-3+deb7u3fixed
wheezy (security)1:1.8.13.1~dfsg1-3+deb7u7fixed
jessie (security), jessie1:11.13.1~dfsg-2+deb8u4fixed
stretch (security), stretch1:13.14.1~dfsg-2+deb9u2fixed
buster1:13.18.1~dfsg-1fixed
sid1:13.18.3~dfsg-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
asterisksource(unstable)1:1.4.19.1~dfsg-1medium
asterisksourceetch1:1.2.13~dfsg-2etch4mediumDSA-1563-1

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