QwikSec

Security Database

CVE

CWE

Training

CVE Database
/

CVE-2025-5987

Back to search

CVE-2025-5987

Published: Jul 7, 2025

Modified: Mar 20, 2026

PUBLISHED

CVSS v3.1

8.1

HIGH

Description

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.

VendorProductVersions

Unknown

libssh

affected
0.10.0 - < 0.11.2

Red Hat

Red Hat Enterprise Linux 10

unaffected
0:0.11.1-5.el10_1 - < *

Red Hat

Red Hat Enterprise Linux 10.0 Extended Update Support

unaffected
0:0.11.1-4.el10_0.1 - < *

Red Hat

Red Hat Enterprise Linux 9

unaffected
0:0.10.4-17.el9_7 - < *

Red Hat

Red Hat Enterprise Linux 9

unaffected
0:0.10.4-17.el9_7 - < *

Red Hat

Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

unaffected
0:0.10.4-9.el9_2.2 - < *

Red Hat

Red Hat Enterprise Linux 9.4 Extended Update Support

unaffected
0:0.10.4-13.el9_4.2 - < *

Red Hat

Red Hat Enterprise Linux 9.6 Extended Update Support

unaffected
0:0.10.4-15.el9_6.1 - < *

Red Hat

Red Hat OpenShift Container Platform 4.13

unaffected
413.92.202602240113-0 - < *

Red Hat

Red Hat OpenShift Container Platform 4.14

unaffected
414.92.202601191325-0 - < *

Red Hat

Red Hat OpenShift Container Platform 4.15

unaffected
415.92.202601271320-0 - < *

Red Hat

Red Hat OpenShift Container Platform 4.16

unaffected
416.94.202601160124-0 - < *

Red Hat

Red Hat OpenShift Container Platform 4.17

unaffected
417.94.202601120213-0 - < *

Red Hat

Red Hat OpenShift Container Platform 4.18

unaffected
418.94.202601202224-0 - < *

Red Hat

Red Hat OpenShift Container Platform 4.19

unaffected
9.6.20260123-0 - < *

Red Hat

Red Hat OpenShift Container Platform 4.20

unaffected
4.20.9.6.202601211057-0 - < *

Red Hat

Red Hat Enterprise Linux 6

All versions

Red Hat

Red Hat Enterprise Linux 7

All versions

Red Hat

Red Hat Enterprise Linux 8

All versions

Weaknesses (CWE)

CWE-393

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

RHSA-2025:23483
vendor-advisory
x_refsource_REDHAT
RHSA-2025:23484
vendor-advisory
x_refsource_REDHAT
RHSA-2026:0427
vendor-advisory
x_refsource_REDHAT
RHSA-2026:0428
vendor-advisory
x_refsource_REDHAT
RHSA-2026:0430
vendor-advisory
x_refsource_REDHAT
RHSA-2026:0431
vendor-advisory
x_refsource_REDHAT
RHSA-2026:0702
vendor-advisory
x_refsource_REDHAT
RHSA-2026:0978
vendor-advisory
x_refsource_REDHAT
RHSA-2026:0980
vendor-advisory
x_refsource_REDHAT
RHSA-2026:0985
vendor-advisory
x_refsource_REDHAT
RHSA-2026:0996
vendor-advisory
x_refsource_REDHAT
RHSA-2026:1539
vendor-advisory
x_refsource_REDHAT
RHSA-2026:1541
vendor-advisory
x_refsource_REDHAT
RHSA-2026:3415
vendor-advisory
x_refsource_REDHAT
RHBZ#2376219
issue-tracking
x_refsource_REDHAT

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Start Training

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.

Scan Now