Improper input validation in SpamAssassin - CVE-2018-11780

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Main Vulnerability Database Vulnerabilities #VU16310

Improper input validation in SpamAssassin - CVE-2018-11780

Published: December 5, 2018 / Updated: December 6, 2018


Vulnerability identifier: #VU16310
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-11780
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a remote code execution bug in the PDFInfo plug-in when handling malicious input. A remote unauthenticated attacker can trick the victim into opening a specially crafted email message and execute arbitrary code with elevated privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Affected software

SpamAssassin
Amazon Linux AMI
Gentoo Linux
Opensuse
Fedora
spamassassin (Alpine package)
spamassassin

How to mitigate CVE-2018-11780

Update to version 3.4.2.

SpamAssassin - update to 3.4.2
spamassassin (Alpine package) - addressed in versions 3.4.2-r0, 3.4.3-r0
spamassassin - addressed in versions 3.4.2-1.fc27, 3.4.2-1.fc28, 3.4.2-1.fc29, 3.4.2-2.fc27, 3.4.2-2.fc28, 3.4.2-2.fc29

External References

Related Security Bulletins