CVE-2025-5351

A flaw was found in the key export functionality of libssh. The issue occurs in the internal function responsible for converting cryptographic keys into serialized formats. During error handling, a memory structure is freed but not cleared, leading to a potential double free issue if an additional failure occurs later in the function. This condition may result in heap corruption or application instability in low-memory scenarios, posing a risk to system reliability where key export operations are performed.

Database specific

{
    "cwe_ids": [
        "CWE-415"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/5xxx/CVE-2025-5351.json",
    "cna_assigner": "redhat"
}

References

Affected packages

Git / git.libssh.org/projects/libssh.git

Affected ranges

Type

GIT

Repo

https://git.libssh.org/projects/libssh.git

Events

Introduced

7f6b3fab4e8d4b97e73d5ca60ddc5a3d0f5880d2

Fixed

dff6c0821ed54f6fbf5b755af43f54cbb723b1b1

Database specific

{
    "extracted_events": [
        {
            "introduced": "0.10.0"
        },
        {
            "fixed": "0.11.2"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-5351.json"

Git / gitlab.com/libssh/libssh-mirror

Affected ranges

Type

GIT

Repo

https://gitlab.com/libssh/libssh-mirror

Events

Introduced

7f6b3fab4e8d4b97e73d5ca60ddc5a3d0f5880d2

Fixed

dff6c0821ed54f6fbf5b755af43f54cbb723b1b1

Database specific

{
    "cpe": "cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0.10.0"
        },
        {
            "fixed": "0.11.2"
        }
    ],
    "source": "CPE_RANGE"
}

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-5351.json"