SARA / Free Tools / CVE / CVE-2023-2283

CVE-2023-2283 — A vulnerability was found in libssh, where the authentication check of the conne

A vulnerability was found in libssh, where the authentication check of the connecting client can be bypassed in the`pki_verify_data_signature` function in memory allocation problems. This issue may happen if there is insufficient memory or the memory usage is limited. The problem

CVSS
— —
EPSS
0.21% (top 56.50%)
CWE
CWE-287
Published
2023-05-26T00:00:00.000Z
Last modified
2025-11-03T20:35:18.528Z
CVSS vector
—

01What is this vulnerability?

A vulnerability was found in libssh, where the authentication check of the connecting client can be bypassed in the`pki_verify_data_signature` function in memory allocation problems. This issue may happen if there is insufficient memory or the memory usage is limited. The problem is caused by the return value `rc,` which is initialized to SSH_ERROR and later rewritten to save the return value of…

02Affected products

VendorProductVersions
na / libsshlibssh-2

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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