CVE-2023-4156

Public Exploit
Heap out of bound read in builtin.c

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.

Category

4.4
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.02%
Third-Party Advisory redhat.com Third-Party Advisory redhat.com
Affected: n/a gawk
Affected: Red Hat Red Hat Enterprise Linux 6
Affected: Red Hat Red Hat Enterprise Linux 7
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Fedora Fedora
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/security/cve/CVE-2023-4156 vdb entry exploit third party advisory release notes issue tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2215930 release notes exploit third party advisory issue tracking

Frequently Asked Questions

What is the severity of CVE-2023-4156?
CVE-2023-4156 has been scored as a medium severity vulnerability.
How to fix CVE-2023-4156?
To fix CVE-2023-4156, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-4156 being actively exploited in the wild?
It is possible that CVE-2023-4156 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-4156?
CVE-2023-4156 affects n/a gawk, Red Hat Red Hat Enterprise Linux 6, Red Hat Red Hat Enterprise Linux 7, Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 9, Fedora Fedora.
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