Vulnerability CVE-2022-31124
Published: 2022-07-06

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.

Type:

CWE-209

 (Information Exposure Through an Error Message)

CVSS2 => (AV:N/AC:L/Au:S/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4/10
2.9/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Openssh key parser project -> Openssh key parser 

 References:
https://github.com/scottcwang/openssh_key_parser/commit/d5b53b4b7e76c5b666fc657019dbf864fb04076c
https://github.com/scottcwang/openssh_key_parser/security/advisories/GHSA-hm37-9xh2-q499
https://github.com/scottcwang/openssh_key_parser/pull/5
https://github.com/scottcwang/openssh_key_parser/commit/26e0a471e9fdb23e635bc3014cf4cbd2323a08d3
https://github.com/scottcwang/openssh_key_parser/commit/274447f91b4037b7050ae634879b657554523b39
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