SB2020013019 - Use-after-free in OSSEC

Description

This security bulletin contains information about 1 security vulnerability.

1) Use-after-free (CVE-ID: CVE-2020-8444)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in the server component responsible for log analysis when processing of ossec-alert formatted messages. A remote authenticated attacker can send a specially crafted message and gain access to sensitive information or cause a denial of service condition on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References

• https://github.com/ossec/ossec-hids/issues/1817
• https://github.com/ossec/ossec-hids/issues/1821
• https://www.ossec.net/