CVE-2020-15677

NameCVE-2020-15677
DescriptionBy exploiting an Open Redirect vulnerability on a website, an attacker could have spoofed the site displayed in the download file dialog to show the original site (the one suffering from the open redirect) rather than the site the file was actually downloaded from. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2387-1, DLA-2408-1, DSA-4768-1, DSA-4770-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firefox (PTS)sid107.0.1-1fixed
firefox-esr (PTS)buster91.12.0esr-1~deb10u1fixed
buster (security)102.5.0esr-1~deb10u1fixed
bullseye91.13.0esr-1~deb11u1fixed
bullseye (security)102.5.0esr-1~deb11u1fixed
bookworm, sid102.5.0esr-1fixed
thunderbird (PTS)buster1:91.12.0-1~deb10u1fixed
buster (security)1:102.5.0-1~deb10u1fixed
bullseye1:91.13.0-1~deb11u1fixed
bullseye (security)1:102.5.0-1~deb11u1fixed
bookworm1:102.5.0-1fixed
sid1:102.5.1-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
firefoxsource(unstable)81.0-1
firefox-esrsourcestretch78.3.0esr-1~deb9u1DLA-2387-1
firefox-esrsourcebuster78.3.0esr-1~deb10u1DSA-4768-1
firefox-esrsource(unstable)78.3.0esr-1
thunderbirdsourcestretch1:78.3.1-2~deb9u1DLA-2408-1
thunderbirdsourcebuster1:78.3.1-2~deb10u2DSA-4770-1
thunderbirdsource(unstable)1:78.3.1-1

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2020-42/#CVE-2020-15677
https://www.mozilla.org/en-US/security/advisories/mfsa2020-43/#CVE-2020-15677
https://www.mozilla.org/en-US/security/advisories/mfsa2020-44/#CVE-2020-15677

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