CVE-2019-17021

NameCVE-2019-17021
DescriptionDuring the initialization of a new content process, a race condition occurs that can allow a content process to disclose heap addresses from the parent process. *Note: this issue only occurs on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firefox (PTS)sid132.0.1-1fixed
firefox-esr (PTS)bullseye115.14.0esr-1~deb11u1fixed
bullseye (security)128.4.0esr-1~deb11u1fixed
bookworm128.3.1esr-1~deb12u1fixed
bookworm (security)128.4.0esr-1~deb12u1fixed
trixie128.3.1esr-2fixed
sid128.4.0esr-1fixed
thunderbird (PTS)bullseye1:115.12.0-1~deb11u1fixed
bullseye (security)1:128.4.0esr-1~deb11u1fixed
bookworm1:115.16.0esr-1~deb12u1fixed
bookworm (security)1:128.4.0esr-1~deb12u1fixed
trixie1:128.4.0esr-1fixed
sid1:128.4.2esr-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
firefoxsource(unstable)(not affected)
firefox-esrsource(unstable)(not affected)
thunderbirdsource(unstable)(not affected)

Notes

- firefox <not-affected> (Windows-specific)
- firefox-esr <not-affected> (Windows-specific)
- thunderbird <not-affected> (Windows-specific)
https://www.mozilla.org/en-US/security/advisories/mfsa2020-01/#CVE-2019-17021
https://www.mozilla.org/en-US/security/advisories/mfsa2020-02/#CVE-2019-17021
https://www.mozilla.org/en-US/security/advisories/mfsa2020-04/#CVE-2019-17021

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