CVE-2021-20308CWE-190

Integer overflow in the htmldoc 1.9.11 and before may allow attackers to execute arbitrary code and cause a denial of service that is similar to CVE-2017-9181

published April 5, 2021

CVSS
—
EPSS
2%
Percentile
84.4
In the wild
Unconfirmed
What it is

⚠️ An overlooked integer overflow in htmldoc could let attackers run wild with arbitrary code! What a sneaky little bug! 😱 Think of it like a production line that keeps miscounting parts, leading to a sudden overflow of widgets that shouldn't exist — dangerous if those widgets can trigger chaos! If exploited, this vulnerability could lead to unexpected behavior or crashes, leaving your services down when they should be up and running. An attacker could potentially take control in a way that disrupts operations, similar to a factory grinding to a halt.

Put simply

Think of it like a production line that keeps miscounting parts, leading to a sudden overflow of widgets that shouldn't exist — dangerous if those widgets can trigger chaos! This vulnerability stems from an integer overflow in htmldoc versions 1.9.11 and earlier, which may allow malicious inputs to disrupt normal execution flow, leading to code execution or denial of service.

What to do

If exploited, this vulnerability could lead to unexpected behavior or crashes, leaving your services down when they should be up and running. An attacker could potentially take control in a way that disrupts operations, similar to a factory grinding to a halt. To mitigate this, upgrade htmldoc to the latest version where this vulnerability is patched. Implement monitoring to detect unusual application behavior that could indicate an attempted exploit. You've got this! With a quick update, you can keep your systems secure and running smoothly! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02477 · 84.4th percentile
Weakness
CWE-190 · Integer Overflow or Wraparound
Published
2021-04-05T21:32Z
EPSS history
Timeline
  • 05 APR 21:32Z
    Integer overflow in the htmldoc 1.9.11 and before may allow attackers to execute arbitrary code and cause a denial of service that is similar to CVE-2017-9181
    cvelistv5