CVE-2019-9813

NameCVE-2019-9813
DescriptionIncorrect handling of __proto__ mutations may lead to type confusion in IonMonkey JIT code and can be leveraged for arbitrary memory read and write. This vulnerability affects Firefox < 66.0.1, Firefox ESR < 60.6.1, and Thunderbird < 60.6.1.
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-1727-1, DSA-4417-1
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firefox (PTS)sid67.0.2-1fixed
firefox-esr (PTS)jessie52.8.1esr-1~deb8u1vulnerable
jessie (security)60.7.0esr-1~deb8u1fixed
stretch60.6.1esr-1~deb9u1fixed
stretch (security)60.7.0esr-1~deb9u1fixed
buster, sid60.7.0esr-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
firefoxsource(unstable)66.0.1-1medium
firefox-esrsource(unstable)60.6.1esr-1medium
firefox-esrsourcejessie60.6.1esr-1~deb8u1mediumDLA-1727-1
firefox-esrsourcestretch60.6.1esr-1~deb9u1mediumDSA-4417-1

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2019-09/#CVE-2019-9813
https://www.mozilla.org/en-US/security/advisories/mfsa2019-10/#CVE-2019-9813

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