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Vulnerability · Published Jul 23, 2020 · Assigned by mitre

CVE-2020-15917

Critical 9.8

In plain English

A critical-severity security flaw in the claws-mail package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.6% (higher than 85% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)2.6%top 14.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

common/session.c in Claws Mail before 3.17.6 has a protocol violation because suffix data after STARTTLS is mishandled.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20claws-mail3.17.6-r0ALPINE-CVE-2020-15917
Alpine:v3.21claws-mail3.17.6-r0ALPINE-CVE-2020-15917
Alpine:v3.22claws-mail3.17.6-r0ALPINE-CVE-2020-15917
Alpine:v3.23claws-mail3.17.6-r0ALPINE-CVE-2020-15917
Alpine:v3.24claws-mail3.17.6-r0ALPINE-CVE-2020-15917
Debian:12claws-mail3.17.6-1DEBIAN-CVE-2020-15917
Debian:13claws-mail3.17.6-1DEBIAN-CVE-2020-15917
Debian:14claws-mail3.17.6-1DEBIAN-CVE-2020-15917

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References