CVE-2018-12386

NameCVE-2018-12386
DescriptionA vulnerability in register allocation in JavaScript can lead to type confusion, allowing for an arbitrary read and write. This leads to remote code execution inside the sandboxed content process when triggered. This vulnerability affects Firefox ESR < 60.2.2 and Firefox < 62.0.3.
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)
ReferencesDSA-4310-1
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firefox (PTS)sid64.0-1fixed
firefox-esr (PTS)jessie52.8.1esr-1~deb8u1vulnerable
jessie (security)60.4.0esr-1~deb8u1fixed
stretch60.3.0esr-1~deb9u1fixed
stretch (security)60.4.0esr-1~deb9u1fixed
buster60.3.0esr-1fixed
sid60.4.0esr-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
firefoxsource(unstable)62.0.3-1medium
firefox-esrsource(unstable)60.2.2esr-1medium
firefox-esrsourcestretch60.2.2esr-1~deb9u1mediumDSA-4310-1

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2018-24/#CVE-2018-12386

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