CVE-2018-0202
clamav - security update
描述
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.
如何修補 CVE-2018-0202
要修補 CVE-2018-0202,請將受影響套件升級到下列已修補版本。
- —升級至 0.99.4-r0 或更新版本
- —升級至 0.100.0~beta+dfsg-2 或更新版本
- —升級至 0.99.4+dfsg-1+deb7u1 或更新版本
CVE-2018-0202 正在被利用嗎?
低 — EPSS 為 2.7%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0, < 0.99.4-r0
- from 0, < 0.100.0~beta+dfsg-2
- from 0, < 0.99.4+dfsg-1+deb7u1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| 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 |