GoogleOSV:GHSA-HM37-9XH2-Q499Possible leak of key's raw field if declared length is incorrect
4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:S/C:P/I:N/A:N
7.7 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
0.001 Low
EPSS
Percentile
50.6%
Impact
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.
Patches
Upgrade to version 0.0.6, which no longer includes the raw field value in the error message.
Workarounds
N/A
References
N/A
For more information
If you have any questions or comments about this advisory:
- Open an issue in openssh_key_parser
| CPE | Name | Operator | Version |
|---|---|---|---|
| openssh-key-parser | eq | 0.0.4 | |
| openssh-key-parser | eq | 0.0.2 | |
| openssh-key-parser | eq | 0.0.5 | |
| openssh-key-parser | eq | 0.0.1 | |
| openssh-key-parser | eq | 0.0.3 |
References
github.com/pypa/advisory-database/tree/main/vulns/openssh-key-parser/PYSEC-2022-233.yaml
github.com/scottcwang/openssh_key_parser
github.com/scottcwang/openssh_key_parser/commit/26e0a471e9fdb23e635bc3014cf4cbd2323a08d3
github.com/scottcwang/openssh_key_parser/commit/274447f91b4037b7050ae634879b657554523b39
github.com/scottcwang/openssh_key_parser/commit/d5b53b4b7e76c5b666fc657019dbf864fb04076c
github.com/scottcwang/openssh_key_parser/pull/5
github.com/scottcwang/openssh_key_parser/security/advisories/GHSA-hm37-9xh2-q499
nvd.nist.gov/vuln/detail/CVE-2022-31124
Related
4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:S/C:P/I:N/A:N
7.7 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
0.001 Low
EPSS
Percentile
50.6%