CVE-2017-7784

NameCVE-2017-7784
DescriptionA use-after-free vulnerability can occur when reading an image observer during frame reconstruction after the observer has been freed. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.
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-1053-1, DLA-1087-1, DSA-3928-1, DSA-3968-1
NVD severityhigh (attack range: remote)
Debian Bugs872834

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firefox (PTS)sid66.0-1fixed
firefox-esr (PTS)jessie52.8.1esr-1~deb8u1fixed
jessie (security)60.6.0esr-1~deb8u1fixed
stretch60.5.0esr-1~deb9u1fixed
stretch (security)60.6.0esr-1~deb9u1fixed
buster60.5.1esr-1fixed
sid60.6.0esr-1fixed
icedove (PTS)jessie1:52.3.0-4~deb8u2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
firefoxsource(unstable)55.0-1high
firefox-esrsource(unstable)52.3.0esr-1high
firefox-esrsourcejessie52.3.0esr-1~deb8u2highDSA-3928-1
firefox-esrsourcestretch52.3.0esr-1~deb9u1highDSA-3928-1
firefox-esrsourcewheezy52.3.0esr-1~deb7u1highDLA-1053-1
icedovesource(unstable)1:52.3.0-1high872834
icedovesourcejessie1:52.3.0-4~deb8u2highDSA-3968-1
icedovesourcestretch1:52.3.0-4~deb9u1highDSA-3968-1
icedovesourcewheezy1:52.3.0-4~deb7u1highDLA-1087-1

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