CVE-2017-17843

NameCVE-2017-17843
DescriptionAn issue was discovered in Enigmail before 1.9.9 that allows remote attackers to trigger use of an intended public key for encryption, because incorrect regular expressions are used for extraction of an e-mail address from a comma-separated list, as demonstrated by a modified Full Name field and a homograph attack, aka TBE-01-002.
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)jessie (security), jessie2:1.9.9-1~deb8u1fixed
stretch2:2.0.8-5~deb9u1fixed
stretch (security)2:1.9.9-1~deb9u1fixed
buster2:2.0.12+ds1-1~deb10u1fixed
bullseye, sid2:2.0.12+ds1-1fixed

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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