CVE-2022-39046

Name: CVE-2022-39046
Creator: NVD / NIST
Published: 2022-08-31T06:15:07.467+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 1.51%

Last modified Jun 17, 2026

CVE-2022-39046 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. An issue was discovered in the GNU C Library (glibc) 2.36. When the syslog function is passed a crafted input string larger than 1024 bytes, it reads uninitialized memory from the heap and prints it to the target log file, potentially revealing a portion of the contents of the heap.. EPSS estimates a 1.51% chance of exploitation in the next 30 days.

Description

An issue was discovered in the GNU C Library (glibc) 2.36. When the syslog function is passed a crafted input string larger than 1024 bytes, it reads uninitialized memory from the heap and prints it to the target log file, potentially revealing a portion of the contents of the heap.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

1.51%

71.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-532

Affected Software

Vendor	Product	Versions
Gnu	Glibc	2.36
Netapp	H300s Firmware	All versions
Netapp	H500s Firmware	All versions
Netapp	H700s Firmware	All versions
Netapp	H410s Firmware	All versions
Netapp	H410c Firmware	All versions
Netapp	Ontap Select Deploy Administration Utility	All versions

References

http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html
http://seclists.org/fulldisclosure/2024/Feb/3
http://www.openwall.com/lists/oss-security/2024/01/30/6
http://www.openwall.com/lists/oss-security/2024/01/30/8
https://security.gentoo.org/glsa/202310-03Third Party Advisory
https://security.netapp.com/advisory/ntap-20221104-0002/Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=29536Exploit, Issue Tracking, Third Party Advisory
http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html
http://seclists.org/fulldisclosure/2024/Feb/3
http://www.openwall.com/lists/oss-security/2024/01/30/6
http://www.openwall.com/lists/oss-security/2024/01/30/8
https://security.gentoo.org/glsa/202310-03Third Party Advisory
https://security.netapp.com/advisory/ntap-20221104-0002/Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=29536Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Aug 31, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-39046?

How severe is CVE-2022-39046?

CVE-2022-39046 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.51% probability of exploitation in the next 30 days.

How do I fix CVE-2022-39046?

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.

Are you affected by CVE-2022-39046?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST