CVE-2019-6991: Buffer Overflow
A classic Stack-based buffer overflow exists in the zmLoadUser() function in zmuser.cpp of the zmu binary in ZoneMinder through 1.32.3, allowing an unauthenticated attacker to execute code via a long username.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
alpine/zoneminderto a version that resolves this vulnerability.Fixed in 1.36.7-r0
Event History
Frequently Asked Questions
What is the severity of CVE-2019-6991?
CVE-2019-6991 is considered a critical vulnerability due to its potential for remote code execution.
How do I fix CVE-2019-6991?
To fix CVE-2019-6991, update ZoneMinder to version 1.32.4 or later where the vulnerability has been patched.
Who is affected by CVE-2019-6991?
All users of ZoneMinder versions 1.32.3 and earlier are affected by CVE-2019-6991 due to the buffer overflow vulnerability.
What type of attack does CVE-2019-6991 allow?
CVE-2019-6991 allows an unauthenticated attacker to execute arbitrary code via a long username.
Can CVE-2019-6991 be exploited remotely?
Yes, CVE-2019-6991 can be exploited remotely, allowing attackers to impact systems without requiring local access.