CVE-2019-1788 ClamAV OLE2 File Out-Of-Bounds Write Vulnerability
An unauthenticated remote attacker can cause a denial of service by sending malformed OLE2 files to ClamAV, triggering an out-of-bounds write and crash.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-1788?
CVE-2019-1788 is a high-severity memory corruption vulnerability in Clamav Clamav, published on 8 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in the Object Linking & Embedding (OLE2) file scanning functionality of Clam AntiVirus (ClamAV) Software versions 0.101.1 and prior could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to a lack of proper input and validation checking mechanisms for OLE2 files sent an affected device. An attacker could exploit this vulnerability by sending malformed OLE2 files to the device running an affected version ClamAV Software. An exploit could allow the attacker to cause an out-of-bounds write condition, resulting in a crash that could result in a denial of service condition on an affected device.
Which versions are affected by CVE-2019-1788?
It affects 3 products.
Products include Clamav Clamav, Debian Debian Linux, Opensuse Leap.
How do I fix CVE-2019-1788?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2019-1788 being exploited?
There is no known exploitation of CVE-2019-1788 in the wild and no public exploit code.
Other vulnerabilities in Clamav Clamav
Sources
Also known as ALPINE-CVE-2019-1788, CLEANSTART-2026-HH88991, DEBIAN-CVE-2019-1788, GHSA-f62v-86qc-pgvp, UBUNTU-CVE-2019-1788.