Vulnerability · Published Oct 8, 2020 · Assigned by mozilla
CVE-2020-15646
Medium 5.9
In plain English
A medium-severity security flaw in Thunderbird from Mozilla. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.9Medium
Exploit odds (30 days)1.0%top 38.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
If an attacker intercepts Thunderbird's initial attempt to perform automatic account setup using the Microsoft Exchange autodiscovery mechanism, and the attacker sends a crafted response, then Thunderbird sends username and password over https to a server controlled by the attacker. This vulnerability affects Thunderbird < 68.10.0.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | thunderbird | 1:68.10.0-1 | DEBIAN-CVE-2020-15646 |
| Debian:13 | thunderbird | 1:68.10.0-1 | DEBIAN-CVE-2020-15646 |
| Debian:14 | thunderbird | 1:68.10.0-1 | DEBIAN-CVE-2020-15646 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Thunderbird | unspecified – before 68.10.0 |
References
- https://www.mozilla.org/security/advisories/mfsa2020-26/ x_refsource_MISC
- https://bugzilla.mozilla.org/show_bug.cgi?id=1606610 x_refsource_MISC