CVE-2020-12398
published 2020-07-09CVE-2020-12398: If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted…
PriorityP338high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
EPSS
0.98%
58.5th percentile
If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted connection, causing email data to be sent without protection. This vulnerability affects Thunderbird < 68.9.0.
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | thunderbird | < thunderbird 1:68.9.0-1 (bookworm) | thunderbird 1:68.9.0-1 (bookworm) |
| mozilla | firefox | — | — |
| mozilla | thunderbird | < 68.9.0 | 68.9.0 |
| mozilla | thunderbird | >= 0 < 1:68.9.0-1 | 1:68.9.0-1 |
| mozilla | thunderbird | >= 0 < 1:68.9.0-1 | 1:68.9.0-1 |
| mozilla | thunderbird | >= 0 < 1:68.9.0-1 | 1:68.9.0-1 |
| mozilla | thunderbird | >= 0 < 1:68.9.0-1 | 1:68.9.0-1 |
| mozilla | thunderbird | >= 0 < 1:68.10.0+build1-0ubuntu0.16.04.1 | 1:68.10.0+build1-0ubuntu0.16.04.1 |
| mozilla | thunderbird | >= 0 < 1:68.10.0+build1-0ubuntu0.18.04.1 | 1:68.10.0+build1-0ubuntu0.18.04.1 |
| mozilla | thunderbird | >= 0 < 1:68.10.0+build1-0ubuntu0.20.04.1 | 1:68.10.0+build1-0ubuntu0.20.04.1 |
| mozilla | thunderbird | >= unspecified < 68.9.0 | 68.9.0 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:P/I:N/A:N
osv7.5HIGH
vendor_debian7.5HIGH
vendor_redhat7.5HIGH
vendor_ubuntu7.5HIGH
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Ubuntu
Thunderbird vulnerabilities
vendor_ubuntu·2020-07-08·CVSS 7.5
CVE-2020-12398 [HIGH] Thunderbird vulnerabilities
Title: Thunderbird vulnerabilities
Summary: Several security issues were fixed in Thunderbird.
Multiple security issues were discovered in Thunderbird. If a user were
tricked in to opening a specially crafted website in a browsing context,
an attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, or execute arbtirary code. (CVE-2020-12405,
CVE-2020-12406, CVE-2020-12410, CVE-2020-12417, CVE-2020-12418,
CVE-2020-12419, CVE-2020-12420)
It was discovered that Thunderbird would continue an unencrypted
connection when configured to use STARTTLS for IMAP if the server
responded with PREAUTH. A remote attacker could potentially exploit
this to perform a person-in-the-middle attack in order to obtain
sensitive information. (CVE-2020-12398)
It was d
Red Hat
Mozilla: Security downgrade with IMAP STARTTLS leads to information leakage
vendor_redhat·2020-06-02·CVSS 7.5
CVE-2020-12398 [HIGH] CWE-200 Mozilla: Security downgrade with IMAP STARTTLS leads to information leakage
Mozilla: Security downgrade with IMAP STARTTLS leads to information leakage
If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted connection, causing email data to be sent without protection. This vulnerability affects Thunderbird < 68.9.0.
The Mozilla Foundation Security Advisory describes this flaw as:
If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted connection, causing email data to be sent without protection.
Package: thunderbird (Red Hat Enterprise Linux 5) - Out of support scope
Debian
CVE-2020-12398: thunderbird - If Thunderbird is configured to use STARTTLS for an IMAP server, and the server ...
vendor_debian·2020·CVSS 7.5
CVE-2020-12398 [HIGH] CVE-2020-12398: thunderbird - If Thunderbird is configured to use STARTTLS for an IMAP server, and the server ...
If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted connection, causing email data to be sent without protection. This vulnerability affects Thunderbird < 68.9.0.
Scope: local
bookworm: resolved (fixed in 1:68.9.0-1)
bullseye: resolved (fixed in 1:68.9.0-1)
forky: resolved (fixed in 1:68.9.0-1)
sid: resolved (fixed in 1:68.9.0-1)
trixie: resolved (fixed in 1:68.9.0-1)
Mozilla
Mozilla Foundation Security Advisory 2020-22: CVE-2020-12398
vendor_mozilla·CVSS 7.5
CVE-2020-12398 [HIGH] Mozilla Foundation Security Advisory 2020-22: CVE-2020-12398
Mozilla Foundation Security Advisory 2020-22
CVE: CVE-2020-12398
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 68.9
GHSA
GHSA-jvxv-vphc-73rg: If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unenc
ghsa_unreviewed·2022-05-24
CVE-2020-12398 [MEDIUM] CWE-311 GHSA-jvxv-vphc-73rg: If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unenc
If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted connection, causing email data to be sent without protection. This vulnerability affects Thunderbird < 68.9.0.
OSV
CVE-2020-12398: If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unenc
osv·2020-07-09·CVSS 7.5
CVE-2020-12398 [HIGH] CVE-2020-12398: If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unenc
If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted connection, causing email data to be sent without protection. This vulnerability affects Thunderbird < 68.9.0.
OSV
thunderbird vulnerabilities
osv·2020-07-08·CVSS 7.5
CVE-2020-12405 [HIGH] thunderbird vulnerabilities
thunderbird vulnerabilities
Multiple security issues were discovered in Thunderbird. If a user were
tricked in to opening a specially crafted website in a browsing context,
an attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, or execute arbtirary code. (CVE-2020-12405,
CVE-2020-12406, CVE-2020-12410, CVE-2020-12417, CVE-2020-12418,
CVE-2020-12419, CVE-2020-12420)
It was discovered that Thunderbird would continue an unencrypted
connection when configured to use STARTTLS for IMAP if the server
responded with PREAUTH. A remote attacker could potentially exploit
this to perform a person-in-the-middle attack in order to obtain
sensitive information. (CVE-2020-12398)
It was discovered that NSS showed timing differences when performing DSA
sig
No detection rules found.
No public exploits indexed.
2020-07-09
Published