Double Free Affecting libssh package, versions [0.10.0,0.11.2)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-LIBSSH-10753751
- published16 Jul 2025
- disclosed24 Jun 2025
- creditRonald Crane
Introduced: 24 Jun 2025
NewCVE-2025-5351 (opens in a new tab)How to fix?
Upgrade libssh to version 0.11.2 or higher.
Overview
Affected versions of this package are vulnerable to Double Free via the pki_key_to_blob() function when built with OpenSSL versions older than 3.0. The issue can lead to heap corruption or application instability during error handling in low-memory environments.
Workaround
This vulnerability can be mitigated by building the library against OpenSSL version 3.0 or later.