CVE-2018-1123 : Security Advisory and Response
Learn about CVE-2018-1123, a vulnerability in procps-ng before version 3.3.15 that exposes a denial of service risk in the ps function through a buffer overflow caused by mmap. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A vulnerability in procps-ng, prior to version 3.3.15, exposes a denial of service risk in the ps function through a buffer overflow caused by mmap.
Understanding CVE-2018-1123
This CVE entry details a vulnerability in procps-ng that could lead to a denial of service risk.
What is CVE-2018-1123?
CVE-2018-1123 is a vulnerability in procps-ng, specifically before version 3.3.15, that can be exploited to cause a denial of service risk in the ps function due to a buffer overflow triggered by mmap.
The Impact of CVE-2018-1123
The vulnerability in procps-ng, prior to version 3.3.15, could result in a denial of service risk in the ps function through a buffer overflow. However, the impact is limited to a crash, causing a temporary denial of service.
Technical Details of CVE-2018-1123
This section provides technical details of the CVE-2018-1123 vulnerability.
Vulnerability Description
The vulnerability in procps-ng before version 3.3.15 exposes a denial of service risk in the ps function through a buffer overflow caused by mmap. The ps function includes a safeguard that assigns a guard page to the buffer's end, limiting the consequences to a crash.
Affected Systems and Versions
- Product: procps-ng, procps
- Vendor: [UNKNOWN]
- Versions Affected: procps-ng 3.3.15
Exploitation Mechanism
- Attack Complexity: LOW
- Attack Vector: LOCAL
- Privileges Required: LOW
- User Interaction: REQUIRED
- Scope: UNCHANGED
- Confidentiality Impact: NONE
- Integrity Impact: LOW
- Availability Impact: LOW
Mitigation and Prevention
Protecting systems from CVE-2018-1123 involves taking immediate steps and implementing long-term security practices.
Immediate Steps to Take
- Update to procps-ng version 3.3.15 or later to mitigate the vulnerability.
- Monitor vendor advisories for patches and updates related to this issue.
Long-Term Security Practices
- Regularly update software and apply security patches promptly.
- Conduct security audits and vulnerability assessments to identify and address potential risks.
Patching and Updates
- Apply patches provided by the vendor to address the vulnerability.