Rsyslog · Librelp · CVE-2018-1000140
**Name of the Vulnerable Software and Affected Versions**
librelp versions 1.2.14 and earlier
**Description**
The issue is related to a Buffer Overflow vulnerability in the checking of x509 certificates from a peer, which can result in Remote code execution. This can be exploited by a remote attacker that can connect to rsyslog and trigger a stack buffer overflow by sending a specially crafted x509 certificate. The vulnerability is associated with the snprintf() function of the RELP library, which can cause a buffer overflow in memory when processing x509 certificates, allowing a remote attacker to execute arbitrary code.
**Recommendations**
For librelp versions 1.2.14 and earlier, at the moment, there is no information about a newer version that contains a fix for this vulnerability.