CVE-2017-17846

NameCVE-2017-17846
DescriptionAn issue was discovered in Enigmail before 1.9.9. Regular expressions are exploitable for Denial of Service, because of attempts to match arbitrarily long strings, aka TBE-01-003.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-1219-1, DSA-4070-1
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
enigmail (PTS)wheezy2:1.8.2-4~deb7u1vulnerable
wheezy (security)2:1.9.9-1~deb7u1fixed
jessie2:1.9.8.1-1~deb8u1vulnerable
jessie (security)2:1.9.9-1~deb8u1fixed
stretch2:1.9.8.1-1~deb9u1vulnerable
stretch (security)2:1.9.9-1~deb9u1fixed
buster, sid2:1.9.9-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
enigmailsource(unstable)2:1.9.9-1medium
enigmailsourcejessie2:1.9.9-1~deb8u1mediumDSA-4070-1
enigmailsourcestretch2:1.9.9-1~deb9u1mediumDSA-4070-1
enigmailsourcewheezy2:1.9.9-1~deb7u1mediumDLA-1219-1

Notes

https://enigmail.net/download/other/Enigmail%20Pentest%20Report%20by%20Cure53%20-%20Excerpt.pdf

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