DEBIAN-CVE-2025-4877

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Source
https://security-tracker.debian.org/tracker/DEBIAN-CVE-2025-4877
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-4877.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2025-4877
Upstream
Published
2025-08-20T13:15:28Z
Modified
2025-09-18T05:18:01Z
Summary
[none]
Details

There's a vulnerability in the libssh package where when a libssh consumer passes in an unexpectedly large input buffer to sshgetfingerprinthash() function. In such cases the binto_base64() function can experience an integer overflow leading to a memory under allocation, when that happens it's possible that the program perform out of bounds write leading to a heap corruption. This issue affects only 32-bits builds of libssh.

References

Affected packages

Debian:11 / libssh

Package

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

Affected ranges

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / libssh

Package

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

Affected ranges

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

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / 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

Ecosystem specific 

{
    "urgency": "not yet assigned"
}