CVE-2019-11761

NameCVE-2019-11761
DescriptionBy using a form with a data URI it was possible to gain access to the privileged JSONView object that had been cloned into content. Impact from exposing this object appears to be minimal, however it was a bypass of existing defense in depth mechanisms. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.
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-1987-1, DLA-1997-1, DSA-4549-1, DSA-4571-1
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firefox (PTS)sid83.0-1fixed
firefox-esr (PTS)stretch68.10.0esr-1~deb9u1fixed
stretch (security)78.5.0esr-1~deb9u1fixed
buster68.12.0esr-1~deb10u1fixed
buster (security)78.5.0esr-1~deb10u1fixed
bullseye, sid78.5.0esr-1fixed
thunderbird (PTS)stretch1:68.10.0-1~deb9u1fixed
stretch (security)1:78.5.0-1~deb9u1fixed
buster1:68.12.0-1~deb10u1fixed
buster (security)1:78.5.0-1~deb10u1fixed
bullseye, sid1:78.5.0-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
firefoxsource(unstable)70.0-1
firefox-esrsourcejessie68.2.0esr-1~deb8u1DLA-1987-1
firefox-esrsourcestretch68.2.0esr-1~deb9u2DSA-4549-1
firefox-esrsourcebuster68.2.0esr-1~deb10u1DSA-4549-1
firefox-esrsource(unstable)68.2.0esr-1
thunderbirdsourcejessie1:68.2.2-1~deb8u1DLA-1997-1
thunderbirdsourcestretch1:68.2.2-1~deb9u1DSA-4571-1
thunderbirdsourcebuster1:68.2.2-1~deb10u1DSA-4571-1
thunderbirdsource(unstable)1:68.2.1-1

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2019-33/#CVE-2019-11761
https://www.mozilla.org/en-US/security/advisories/mfsa2019-34/#CVE-2019-11761
https://www.mozilla.org/en-US/security/advisories/mfsa2019-35/#CVE-2019-11761

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