CVE-2018-12373 — Sensitive Information Exposure in Mozilla Thunderbird

CWE-200 — Sensitive Information ExposureCWE-212 — Improper Removal of Sensitive Information Before Storage or Transfer11 documents8 sources
Severity
6.5MEDIUMNVD
OSV8.8
EPSS
1.1%
top 21.94%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
7
Mozilla ThunderbirdCanonical Ubuntu LinuxDebian Linux+4 more
Timeline
PublishedOct 18
Latest updateMay 13

Description

dDecrypted S/MIME parts hidden with CSS or the plaintext HTML tag can leak plaintext when included in a HTML reply/forward. This vulnerability affects Thunderbird < 52.9.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NExploitability: 2.8 | Impact: 3.6

Affected Packages7 packages

▶CVEListV5mozilla/thunderbirdunspecified — 52.9
▶NVDmozilla/thunderbird< 52.9.0
▶Debianmozilla/thunderbird< 1:52.9.0-1+3
▶Ubuntumozilla/thunderbird< 1:52.9.1+build3-0ubuntu0.14.04.1+2

Also affects: Debian Linux 8.0, 9.0, Ubuntu Linux 14.04, 16.04, 17.10, 18.04, Enterprise Linux 6.0, 7.0, 7.5, 7.6

🔴Vulnerability Details

4
GHSA
GHSA-6x9p-vcwr-3q9w: dDecrypted S/MIME parts hidden with CSS or the plaintext HTML tag can leak plaintext when included in a HTML reply/forward↗2022-05-13
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OSV
CVE-2018-12373: dDecrypted S/MIME parts hidden with CSS or the plaintext HTML tag can leak plaintext when included in a HTML reply/forward↗2018-10-18
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CVEList
CVE-2018-12373: dDecrypted S/MIME parts hidden with CSS or the plaintext HTML tag can leak plaintext when included in a HTML reply/forward↗2018-10-18
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OSV
thunderbird vulnerabilities↗2018-07-12
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📋Vendor Advisories

3
Ubuntu
Thunderbird vulnerabilities↗2018-07-12
▶
Red Hat
thunderbird: S/MIME plaintext can be leaked through HTML reply/forward↗2018-05-27
▶
Debian
CVE-2018-12373: thunderbird - dDecrypted S/MIME parts hidden with CSS or the plaintext HTML tag can leak plain...↗2018
▶

💬Community

2
Bugzilla
CVE-2018-12373 thunderbird: S/MIME plaintext can be leaked through HTML reply/forward [fedora-all]↗2018-07-05
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Bugzilla
CVE-2018-12373 thunderbird: S/MIME plaintext can be leaked through HTML reply/forward↗2018-07-05
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CVE-2018-12373 — Sensitive Information Exposure | cvebase