Buffer overflow in Clamav

CVE-2017-12375

The ClamAV AntiVirus software versions 0.99.2 and prior contain 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 a lack of input validation checking mechanisms during certain mail parsing functions (the rfc2047 function in mbox.c). An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted email to the affected device. This action could cause a buffer overflow condition when ClamAV scans the malicious email, allowing the attacker to potentially cause a DoS condition on an affected device.

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.056 (92.6th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 92.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2017-12375: held from 0.056 to 0.056.

EPSS over last 30 days · oldest: 0.056 · newest: 0.056 · change: 0.000

Affected products

  • Clamav
  • Debian Linux — versions 7.0
  • Clamav Antivirus Software Versions 0.99.2 And Prior — versions ClamAV AntiVirus software versions 0.99.2 and prior

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-12375?
CVE-2017-12375 is a high-severity vulnerability in Clamav, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2018-01-26.
How severe is CVE-2017-12375?
High severity. CVSS v3 base score is 7.5 out of 10.