CVE-2018-0202
clamav - security update
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.
How to fix CVE-2018-0202
To remediate CVE-2018-0202, upgrade the affected package to a fixed version below.
- —upgrade to 0.99.4-r0 or later
- —upgrade to 0.100.0~beta+dfsg-2 or later
- —upgrade to 0.99.4+dfsg-1+deb7u1 or later
Is CVE-2018-0202 being exploited?
Low — EPSS is 2.2%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 0.99.4-r0
- from 0, < 0.100.0~beta+dfsg-2
- from 0, < 0.99.4+dfsg-1+deb7u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |