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 advisories/code/issues, web search, more)
ReferencesDLA-1987-1, DLA-1997-1, DSA-4549-1, DSA-4571-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firefox (PTS)sid105.0-1fixed
firefox-esr (PTS)buster91.12.0esr-1~deb10u1fixed
buster (security)91.13.0esr-1~deb10u1fixed
bullseye91.13.0esr-1~deb11u1fixed
bullseye (security)102.3.0esr-1~deb11u1fixed
bookworm102.2.0esr-1fixed
sid102.3.0esr-1fixed
thunderbird (PTS)buster1:91.12.0-1~deb10u1fixed
buster (security)1:91.13.0-1~deb10u1fixed
bullseye (security), bullseye1:91.13.0-1~deb11u1fixed
bookworm1:102.2.2-1fixed
sid1:102.3.0-1fixed

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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