CVE-2019-18960

Firecracker vsock implementation buffer overflow in versions 0.18.0 and 0.19.0

published December 11, 2019

CVSS
—
EPSS
3%
Percentile
88.3
In the wild
Unconfirmed
What it is

⚠️ A sneaky buffer overflow in Firecracker's vsock implementation could lead to crashes in your system — think of it as a surprise leak in your favorite inflatable pool! 🌊 Imagine you're at a party and someone keeps pouring soda into a cup without stopping. Eventually, the soda overflows, creating a sticky mess! This vulnerability allows data to overflow in a similar way, which could bring the system crashing down if not handled properly. While there’s currently no evidence of exploitation, the potential for crashes means that your system could be disrupted unexpectedly. This could lead to downtime and hamper your operations, so it’s essential to take this seriously!

Put simply

Imagine you're at a party and someone keeps pouring soda into a cup without stopping. Eventually, the soda overflows, creating a sticky mess! This vulnerability allows data to overflow in a similar way, which could bring the system crashing down if not handled properly. CVE-2019-18960 is a buffer overflow vulnerability in the vsock implementation of Firecracker versions 0.18.0 and 0.19.0, which can cause system crashes, allowing for possible denial of service.

What to do

While there’s currently no evidence of exploitation, the potential for crashes means that your system could be disrupted unexpectedly. This could lead to downtime and hamper your operations, so it’s essential to take this seriously! To protect your environment, upgrade Firecracker to at least version 0.19.1, where this issue is fixed. Additionally, review your configurations to ensure everything is running smoothly! You've got this! Stay proactive and keep your systems secure! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03252 · 88.3th percentile
Published
2019-12-11T12:25Z
EPSS history
Timeline
  • 11 DEC 12:25Z
    Firecracker vsock implementation buffer overflow in versions 0.18.0 and 0.19.0
    cvelistv5