CVE-2020-13901

An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0

published June 10, 2020

CVSS
—
EPSS
3%
Percentile
85.1
In the wild
Unconfirmed
What it is

⚠️ A crafty stack-based buffer overflow is lurking in janus-gateway versions up to 0.10.0! It's like a package overflowing with too much content — if the server isn’t careful, it could spill over with unintended consequences. 🚨 Think of it as a crowded elevator where too many people squeeze in; when it gets too full, the doors can’t close properly, leading to chaos. In this case, the overflow could let attackers execute arbitrary code or crash the server. An attacker could leverage this vulnerability to manipulate the server, potentially leading to unauthorized access or a complete crash. While the severity is currently undetermined, the implications of a buffer overflow are always serious and should be handled with care.

Put simply

Think of it as a crowded elevator where too many people squeeze in; when it gets too full, the doors can’t close properly, leading to chaos. In this case, the overflow could let attackers execute arbitrary code or crash the server. The vulnerability in janus-gateway arises from the sdp.c file's janus_sdp_merge function, which fails to properly limit input size, allowing stack memory to be overwritten when processing data. This could lead to a state where the server behaves unpredictably or is compromised.

What to do

An attacker could leverage this vulnerability to manipulate the server, potentially leading to unauthorized access or a complete crash. While the severity is currently undetermined, the implications of a buffer overflow are always serious and should be handled with care. To mitigate this risk, upgrade janus-gateway to a patched version as soon as it becomes available. Review your current implementation and monitor for any suspicious behavior while you wait for the fix. Stay aware of updates from the janus development team! You've got this! With a little vigilance and timely patching, you can keep your applications secure! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02581 · 85.1th percentile
Published
2020-06-10T21:09Z
EPSS history
Timeline
  • 10 JUN 21:09Z
    An issue was discovered in janus-gateway (aka Janus WebRTC Server) through 0.10.0
    cvelistv5