DescriptionAsterisk Open Source 1.4.5 through 1.4.11, when configured to use an IMAP voicemail storage backend, allows remote attackers to cause a denial of service via an e-mail with an "invalid/corrupted" MIME body, which triggers a crash when the recipient listens to voicemail.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
asterisk (PTS)buster1:16.2.1~dfsg-1+deb10u2fixed
buster (security)1:16.28.0~dfsg-0+deb10u2fixed
bullseye (security)1:16.28.0~dfsg-0+deb11u2fixed
bookworm, sid1:20.1.0~dfsg+~cs6.12.40431414-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
asterisksourcesarge(not affected)
asterisksourceetch(not affected)
asterisksource(unstable)(not affected)


- asterisk <not-affected> (The voicemail backend is not enabled in Debian)
[sarge] - asterisk <not-affected> (Only Asterisk 1.4.x is affected)
[etch] - asterisk <not-affected> (Only Asterisk 1.4.x is affected)
the backend will be enabled in future uploads with a fixed package.

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