CVE-2018-0202

Name: CVE-2018-0202
Creator: NVD / NIST
Published: 2018-03-27T09:29:00.387+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.67%

Last modified Jun 17, 2026

CVE-2018-0202 is a vulnerability of currently unknown severity. clamscan in ClamAV before 0.99.4 contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation checking mechanisms when handling Portable Document Format (.pdf) files sent to an affected device. EPSS estimates a 2.67% chance of exploitation in the next 30 days.

Description

clamscan in ClamAV before 0.99.4 contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation checking mechanisms when handling Portable Document Format (.pdf) files sent to an affected device. An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted .pdf file to an affected device. This action could cause an out-of-bounds read when ClamAV scans the malicious file, allowing the attacker to cause a DoS condition. This concerns pdf_parse_array and pdf_parse_string in libclamav/pdfng.c. Cisco Bug IDs: CSCvh91380, CSCvh91400.

Metrics

EPSS Probability

2.67%

83.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Clamav	Clamav	<= 0.99.3
Canonical	Ubuntu Linux	12.04
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	17.10
Debian	Debian Linux	7.0

References

https://bugzilla.clamav.net/show_bug.cgi?id=11973Issue Tracking, Patch, Third Party Advisory
https://bugzilla.clamav.net/show_bug.cgi?id=11980Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/03/msg00011.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/201804-16Third Party Advisory
https://usn.ubuntu.com/3592-1/Third Party Advisory
https://usn.ubuntu.com/3592-2/Third Party Advisory
https://bugzilla.clamav.net/show_bug.cgi?id=11973Issue Tracking, Patch, Third Party Advisory
https://bugzilla.clamav.net/show_bug.cgi?id=11980Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/03/msg00011.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/201804-16Third Party Advisory
https://usn.ubuntu.com/3592-1/Third Party Advisory
https://usn.ubuntu.com/3592-2/Third Party Advisory

Timeline

Published: Mar 27, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-0202?

How severe is CVE-2018-0202?

Severity scoring for CVE-2018-0202 is pending analysis. The EPSS model estimates a 2.67% probability of exploitation in the next 30 days.

How do I fix CVE-2018-0202?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-0202?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST