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7.8

Gravity 0.8.1 NULL Pointer Dereference Allows Service Crash

CVE-2021-32284 · published 5 years ago
Summary

An attacker can exploit a weakness in Gravity 0.8.1 to shut down the service. This could happen if an attacker sends malicious input to the system. To mitigate this, update to a newer version of Gravity that addresses this issue.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
creolabs gravity <= 0.8.1
cpe:2.3:a:creolabs:gravity:*:*:*:*:*:*:*:*
Original advisory text
An issue was discovered in gravity through 0.8.1. A NULL pointer dereference exists in the function ircode_register_pop_context_protect() located in gravity_ircode.c. It allows an attacker to cause...
An issue was discovered in gravity through 0.8.1. A NULL pointer dereference exists in the function ircode_register_pop_context_protect() located in gravity_ircode.c. It allows an attacker to cause Denial of Service.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker full control (estimated)
Severity
7.8 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-476NULL Pointer Dereference
Timeline
Published20 Sep 2021
Updated4 Nov 2026
First seen9 Jul 2026
Sources
CVE-2021-32284 · OSV
CVE-2021-32284 · NVD
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