Stack-based Buffer Overflow Affecting librelp-devel package, versions <0:1.2.12-1.el7_5.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-RHEL7-LIBRELPDEVEL-4762738
- published26 Jul 2021
- disclosed23 Mar 2018
Introduced: 23 Mar 2018
CVE-2018-1000140 (opens in a new tab)How to fix?
Upgrade RHEL:7 librelp-devel to version 0:1.2.12-1.el7_5.1 or higher.
This issue was patched in RHSA-2018:1223.
NVD Description
Note: Versions mentioned in the description apply only to the upstream librelp-devel package and not the librelp-devel package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
rsyslog librelp version 1.2.14 and earlier contains a Buffer Overflow vulnerability in the checking of x509 certificates from a peer that can result in Remote code execution. This attack appear to be exploitable a remote attacker that can connect to rsyslog and trigger a stack buffer overflow by sending a specially crafted x509 certificate.
References
- https://access.redhat.com/security/cve/CVE-2018-1000140
- https://www.debian.org/security/2018/dsa-4151
- https://security.gentoo.org/glsa/201804-21
- https://github.com/rsyslog/librelp/blob/532aa362f0f7a8d037505b0a27a1df452f9bac9e/src/tcp.c#L1205
- https://lgtm.com/rules/1505913226124/
- https://access.redhat.com/errata/RHSA-2018:1223
- https://usn.ubuntu.com/3612-1/
- http://packetstormsecurity.com/files/172829/librelp-Remote-Code-Execution.html