CVE-2025-5351

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Source
https://nvd.nist.gov/vuln/detail/CVE-2025-5351
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-5351.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-5351
Downstream
Published
2025-07-04T09:15:37Z
Modified
2025-07-08T17:01:46.739078Z
Severity
  • 4.2 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Debian:11 / libssh

Package

Name
libssh
Purl
pkg:deb/debian/libssh?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.9.5-1
0.9.5-1+deb11u1
0.9.6-1
0.9.6-2
0.9.7-0+deb11u1
0.9.8-0+deb11u1
0.10.4-1
0.10.4-2
0.10.5-1
0.10.5-2
0.10.5-3
0.10.5-3+hurd.1
0.10.6-1
0.10.6-2
0.10.6-3
0.11.1-1
0.11.1-2
0.11.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / libssh

Package

Name
libssh
Purl
pkg:deb/debian/libssh?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.10.5-2
0.10.5-3
0.10.5-3+hurd.1
0.10.6-0+deb12u1
0.10.6-1
0.10.6-2
0.10.6-3
0.11.1-1
0.11.1-2
0.11.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / libssh

Package

Name
libssh
Purl
pkg:deb/debian/libssh?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.11.2-1

Affected versions

0.*

0.10.5-2
0.10.5-3
0.10.5-3+hurd.1
0.10.6-1
0.10.6-2
0.10.6-3
0.11.1-1
0.11.1-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}