CVE-2023-4156
HIGHCVSS 7.1/10EPSS 0.42%
Last modified
CVE-2023-4156 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. A heap out-of-bounds read flaw was found in builtin.c in the gawk package. This issue may lead to a crash and could be used to read sensitive information.. EPSS estimates a 0.42% chance of exploitation in the next 30 days.
Description
A heap out-of-bounds read flaw was found in builtin.c in the gawk package. This issue may lead to a crash and could be used to read sensitive information.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gnu | Gawk | < 5.1.1 |
| Redhat | Enterprise Linux | 6.0 |
| Redhat | Enterprise Linux | 7.0 |
| Fedoraproject | Fedora | 38 |
References
- https://access.redhat.com/security/cve/CVE-2023-4156Exploit, Issue Tracking, Release Notes, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2215930Exploit, Issue Tracking, Release Notes, Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-4156Exploit, Issue Tracking, Release Notes, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2215930Exploit, Issue Tracking, Release Notes, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-4156?
A heap out-of-bounds read flaw was found in builtin.c in the gawk package. This issue may lead to a crash and could be used to read sensitive information.
How severe is CVE-2023-4156?
CVE-2023-4156 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.
How do I fix CVE-2023-4156?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2023-4156?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST