CVE-2022-31124

Public Exploit
Possible leak of key's raw field if declared length is incorrect in openssh_key_parser

Description

openssh_key_parser is an open source Python package providing utilities to parse and pack OpenSSH private and public key files. In versions prior to 0.0.6 if a field of a key is shorter than it is declared to be, the parser raises an error with a message containing the raw field value. An attacker able to modify the declared length of a key's sensitive field can thus expose the raw value of that field. Users are advised to upgrade to version 0.0.6, which no longer includes the raw field value in the error message. There are no known workarounds for this issue.

Category

7.7
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.13%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: scottcwang openssh_key_parser
Published at:
Updated at:

References

Link Tags
https://github.com/scottcwang/openssh_key_parser/security/advisories/GHSA-hm37-9xh2-q499 third party advisory
https://github.com/scottcwang/openssh_key_parser/pull/5 issue tracking exploit third party advisory
https://github.com/scottcwang/openssh_key_parser/commit/26e0a471e9fdb23e635bc3014cf4cbd2323a08d3 third party advisory patch
https://github.com/scottcwang/openssh_key_parser/commit/274447f91b4037b7050ae634879b657554523b39 third party advisory patch
https://github.com/scottcwang/openssh_key_parser/commit/d5b53b4b7e76c5b666fc657019dbf864fb04076c third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2022-31124?
CVE-2022-31124 has been scored as a high severity vulnerability.
How to fix CVE-2022-31124?
To fix CVE-2022-31124, 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-2022-31124 being actively exploited in the wild?
It is possible that CVE-2022-31124 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-2022-31124?
CVE-2022-31124 affects scottcwang openssh_key_parser.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.