What is the CVSS score of CVE-2018-1000140?

CVE-2018-1000140 has a CVSS 3.0 base score of 9.8 (Critical). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 9.7%.

Is there a public PoC exploit available for CVE-2018-1000140?

Yes, a public proof-of-concept exploit is available for CVE-2018-1000140. Prioritise patching immediately. EPSS: 9.7%.

Is there a patch available for CVE-2018-1000140?

Yes, a patch is available for CVE-2018-1000140. Update the affected software to the latest version immediately.

Librelp CVE-2018-1000140

CRITICAL

Out-of-bounds Write (CWE-787)

2018-03-23 cve@mitre.org

Memory Corruption RCE Buffer Overflow Librelp Debian Linux Ubuntu Linux Enterprise Linux Desktop Enterprise Linux Server Enterprise Linux Server Aus Enterprise Linux Server Eus Enterprise Linux Server Tus Enterprise Linux Workstation

9.8

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Mar 23, 2018 - 21:29 nvd

CRITICAL 9.8

DescriptionNVD

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.

AnalysisAI

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. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. 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. Affected products include: Rsyslog Librelp, Debian Debian Linux, Canonical Ubuntu Linux, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server. Version information: version 1.2.14.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).