CVE-2020-15655

NameCVE-2020-15655
DescriptionA redirected HTTP request which is observed or modified through a web extension could bypass existing CORS checks, leading to potential disclosure of cross-origin information. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.
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)
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firefox (PTS)sid81.0-2fixed
thunderbird (PTS)stretch1:68.10.0-1~deb9u1fixed
stretch (security)1:68.12.0-1~deb9u2fixed
buster1:68.10.0-1~deb10u1fixed
buster (security)1:68.12.0-1~deb10u1fixed
bullseye, sid1:68.12.0-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
firefoxsource(unstable)79.0-1
thunderbirdsource(unstable)(not affected)

Notes

- thunderbird <not-affected> (Only affects Thunderbird 78.x)
https://www.mozilla.org/en-US/security/advisories/mfsa2020-32/#CVE-2020-15655
https://www.mozilla.org/en-US/security/advisories/mfsa2020-33/#CVE-2020-15655

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