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CVE-2025-5987

Libssh: invalid return code for chacha20 poly1305 with openssl backend PUBLISHED

Description (CNA)

A flaw was found in libssh when using the ChaCha20 cipher with the OpenSSL library. If an attacker manages to exhaust the heap space, this error is not detected and may lead to libssh using a partially initialized cipher context. This occurs because the OpenSSL error code returned aliases with the SSH_OK code, resulting in libssh not properly detecting the error returned by the OpenSSL library. This issue can lead to undefined behavior, including compromised data confidentiality and integrity or crashes.

Affected (CNA)

Vendor / productVersions
Not supplied / Not suppliedaffected 0.10.0 before 0.11.2
Red Hat / Red Hat Enterprise Linux 10unaffected 0:0.11.1-5.el10_1 before *
Red Hat / Red Hat Enterprise Linux 10.0 Extended Update Supportunaffected 0:0.11.1-4.el10_0.1 before *
Red Hat / Red Hat Enterprise Linux 9unaffected 0:0.10.4-17.el9_7 before *
Red Hat / Red Hat Enterprise Linux 9unaffected 0:0.10.4-17.el9_7 before *
Red Hat / Red Hat Enterprise Linux 9.2 Update Services for SAP Solutionsunaffected 0:0.10.4-9.el9_2.2 before *
Red Hat / Red Hat Enterprise Linux 9.4 Extended Update Supportunaffected 0:0.10.4-13.el9_4.2 before *
Red Hat / Red Hat Enterprise Linux 9.6 Extended Update Supportunaffected 0:0.10.4-15.el9_6.1 before *
Red Hat / Red Hat OpenShift Container Platform 4.13unaffected 413.92.202602240113-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.14unaffected 414.92.202601191325-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.15unaffected 415.92.202601271320-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.16unaffected 416.94.202601160124-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.17unaffected 417.94.202601120213-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.18unaffected 418.94.202601202224-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.19unaffected 4.19.9.6.202601260820-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.20unaffected 4.20.9.6.202601211057-0 before *
Red Hat / Red Hat Enterprise Linux 6unknown
Red Hat / Red Hat Enterprise Linux 7unknown
Red Hat / Red Hat Enterprise Linux 8unaffected
Red Hat / Red Hat OpenShift Container Platform 4affected

CWE

CWE-393

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.