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Fencer Vulns
high 8.1

CVE-2025-5318 json

Libssh: out-of-bounds read in sftp_handle()

published 2025-06-24 16 mo ago modified 2026-11-05 3 d ago also EUVD-2025-23900 , JLSEC-2025-96

cvss
8.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

A flaw was found in the libssh library in versions less than 0.11.2. An out-of-bounds read can be triggered in the sftp_handle function due to an incorrect comparison check that permits the function to access memory beyond the valid handle list and to return an invalid pointer, which is used in further processing. This vulnerability allows an authenticated remote attacker to potentially read unintended memory regions, exposing sensitive information or affect service behavior.

Patch / fix

  • julia libssh_jll 0.11.3+0
  • Red Hat Red Hat Enterprise Linux 10 0:0.11.1-4.el10_0, 0:0.11.1-4.el10_1
  • Red Hat Red Hat Enterprise Linux 8 0:0.9.6-15.el8_10
  • Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support 0:0.9.0-4.el8_2.1
  • Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:0.9.4-2.el8_4.1
  • Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:0.9.4-2.el8_4.1
  • Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:0.9.6-4.el8_6.1
  • Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service 0:0.9.6-4.el8_6.1
  • Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:0.9.6-4.el8_6.1
  • Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:0.9.6-13.el8_8.1
  • Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:0.9.6-13.el8_8.1
  • Red Hat Red Hat Enterprise Linux 9 0:0.10.4-15.el9_6, 0:0.10.4-15.el9_7
  • Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions 0:0.9.6-3.el9_0.1
  • Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:0.10.4-9.el9_2.1
  • Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support 0:0.10.4-13.el9_4.1
  • Red Hat Red Hat OpenShift Container Platform 4.12 412.86.202511191939-0
  • Red Hat Red Hat OpenShift Container Platform 4.13 413.92.202511261311-0
  • Red Hat Red Hat OpenShift Container Platform 4.14 414.92.202511122212-0
  • Red Hat Red Hat OpenShift Container Platform 4.15 415.92.202601271320-0
  • Red Hat Red Hat OpenShift Container Platform 4.16 416.94.202601071926-0
  • Red Hat Red Hat OpenShift Container Platform 4.17 417.94.202510282022-0
  • Red Hat Red Hat OpenShift Container Platform 4.18 418.94.202511041748-0
  • Red Hat Red Hat OpenShift Container Platform 4.19 4.19.9.6.202510281054-0
  • Red Hat Red Hat OpenShift Container Platform 4.20 4.20.9.6.202510290321-0
  • Red Hat Red Hat AI Inference Server 3.2 3.2.2-1764871796, 3.2.2-1765379049, 3.2.2-1765379088, 1772160593, 1772160625
  • Red Hat Red Hat OpenShift distributed tracing 3.7.0 rhosdt-3.7-1762254519, rhosdt-3.7-1762254530, rhosdt-3.7-1762254545, rhosdt-3.7-1762254546, rhosdt-3.7-1762254552, rhosdt-3.7-1762255881
  • libssh Debian 12 0.10.6-0+deb12u2
  • libssh Debian 14, Debian 13 0.11.2-1

debian advisories DEBIAN-CVE-2025-5318

  • libssh Ubuntu 22.04 LTS 0.9.6-2ubuntu0.22.04.4
  • libssh Ubuntu 24.04 LTS 0.10.6-2ubuntu0.1
  • libssh Ubuntu Pro 16.04 LTS 0.6.3-4.3ubuntu0.6+esm2
  • libssh Ubuntu Pro 18.04 LTS 0.8.0~20170825.94fa1e38-1ubuntu0.7+esm4
  • libssh Ubuntu Pro 20.04 LTS 0.9.3-2ubuntu2.5+esm1

ubuntu advisories UBUNTU-CVE-2025-5318

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libssh RHEL 10.1 0.11.1-4.el10_1
  • libssh-config RHEL 10.1 0.11.1-4.el10_1
  • libssh RHEL 9 0.10.4-15.el9_7
  • libssh-config RHEL 9 0.10.4-15.el9_7
  • libssh RHEL 8 0.9.6-15.el8_10
  • libssh-config RHEL 8 0.9.6-15.el8_10
  • libssh RHEL 9 0.10.4-15.el9_6
  • libssh-config RHEL 9 0.10.4-15.el9_6

red hat advisories RHSA-2025:21013RHSA-2025:20943RHSA-2025:19472RHSA-2025:19470RHSA-2025:19401RHSA-2025:19400

  • libssh Linux Micro 6.1 0.10.6-slfo.1.1_2.1
  • libssh Linux Micro 6.0 0.10.6-2.1
  • libssh SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE Micro 5.2 +3 more 0.9.8-150200.13.9.1
  • libssh SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +10 more 0.9.8-150400.3.9.1
  • libssh SLE Module for Basesystem 15 SP7, SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 0.9.8-150600.11.3.1
  • libssh SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 0.6.3-12.15.1
  • libssh SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 0.9.8-3.15.1

suse advisories SUSE-SU-2025:20596-1SUSE-SU-2025:20557-1SUSE-SU-2025:02755-1SUSE-SU-2025:02281-1SUSE-SU-2025:02279-1SUSE-SU-2025:02278-1

  • libssh openSUSE Tumbleweed 0.11.2-1.1

opensuse advisories openSUSE-SU-2025:15243-1

  • libssh AlmaLinux 9 0.10.4-15.el9_7
  • libssh-config AlmaLinux 9 0.10.4-15.el9_7
  • libssh AlmaLinux 10 0.11.1-4.el10_1
  • libssh-config AlmaLinux 10 0.11.1-4.el10_1
  • libssh AlmaLinux 8 0.9.6-15.el8_10
  • libssh-config AlmaLinux 8 0.9.6-15.el8_10
  • libssh-config AlmaLinux 10 0.11.1-4.el10_0
  • libssh AlmaLinux 9 0.10.4-15.el9_6

almalinux advisories ALSA-2025:20943ALSA-2025:21013ALSA-2025:18286ALSA-2025:18231ALSA-2025:18275

  • libssh Rocky Linux 8 0.9.6-15.el8_10
  • libssh Rocky Linux 9 0.10.4-15.el9_6
  • libssh Rocky Linux 10 0.11.1-4.el10_0

rocky linux advisories RLSA-2025:18286RLSA-2025:20943RLSA-2025:18231RLSA-2025:18275

  • libssh Alpine 3.24, Alpine 3.23, Alpine 3.22 0.11.2-r0

alpine advisories ALPINE-CVE-2025-5318

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libssh CBL-Mariner 2.0, Azure Linux 3.0 0.10.6-2

azure linux advisories AZL-64346AZL-64358

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-5318 updated cvss 5.4

libssh: out-of-bounds read in sftp_handle()

  • Red Hat AI Inference Server 3.2 rhaiis 1772160593, rhaiis 1772160625, rhaiis 3.2.2-1764871796, rhaiis 3.2.2-1765379049, rhaiis 3.2.2-1765379088
    fixed: vendor fix RHSA-2025:23080
  • Red Hat Enterprise Linux AppStream (v. 8) libssh-devel 0.9.6-15.el8_10, libssh-debuginfo 0.9.6-15.el8_10, libssh-debugsource 0.9.6-15.el8_10
    fixed: vendor fix RHSA-2025:18286
  • Red Hat Enterprise Linux AppStream (v. 9) libssh-devel 0.10.4-15.el9_6, libssh-devel 0.10.4-15.el9_7, libssh-debuginfo 0.10.4-15.el9_6, libssh-debuginfo 0.10.4-15.el9_7, libssh-debugsource 0.10.4-15.el9_6, libssh-debugsource 0.10.4-15.el9_7
    fixed: vendor fix RHSA-2025:18275
  • Red Hat Enterprise Linux AppStream (v. 10) libssh-devel 0.11.1-4.el10_0, libssh-devel 0.11.1-4.el10_1, libssh-debuginfo 0.11.1-4.el10_0, libssh-debuginfo 0.11.1-4.el10_1, libssh-debugsource 0.11.1-4.el10_0, libssh-debugsource 0.11.1-4.el10_1
    fixed: vendor fix RHSA-2025:18231
  • Red Hat Enterprise Linux AppStream AUS (v. 8.2) libssh-devel 0.9.0-4.el8_2.1, libssh-debuginfo 0.9.0-4.el8_2.1, libssh-debugsource 0.9.0-4.el8_2.1
    fixed: vendor fix RHSA-2025:19400
  • Red Hat Enterprise Linux AppStream AUS (v.8.4) libssh-devel 0.9.4-2.el8_4.1, libssh-debuginfo 0.9.4-2.el8_4.1, libssh-debugsource 0.9.4-2.el8_4.1
    fixed: vendor fix RHSA-2025:19401
  • Red Hat Enterprise Linux AppStream AUS (v.8.6) libssh-devel 0.9.6-4.el8_6.1, libssh-debuginfo 0.9.6-4.el8_6.1, libssh-debugsource 0.9.6-4.el8_6.1 Red Hat Enterprise Linux AppStream E4S (v.8.6) libssh-devel 0.9.6-4.el8_6.1, libssh-debuginfo 0.9.6-4.el8_6.1, libssh-debugsource 0.9.6-4.el8_6.1
    fixed: vendor fix RHSA-2025:19098
  • Red Hat Enterprise Linux AppStream E4S (v.8.8) libssh-devel 0.9.6-13.el8_8.1, libssh-debuginfo 0.9.6-13.el8_8.1, libssh-debugsource 0.9.6-13.el8_8.1
    fixed: vendor fix RHSA-2025:19101
show 30 more
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) libssh-devel 0.9.6-3.el9_0.1, libssh-debuginfo 0.9.6-3.el9_0.1, libssh-debugsource 0.9.6-3.el9_0.1
    fixed: vendor fix RHSA-2025:19472
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) libssh-devel 0.10.4-9.el9_2.1, libssh-debuginfo 0.10.4-9.el9_2.1, libssh-debugsource 0.10.4-9.el9_2.1
    fixed: vendor fix RHSA-2025:19470
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) libssh-devel 0.10.4-13.el9_4.1, libssh-debuginfo 0.10.4-13.el9_4.1, libssh-debugsource 0.10.4-13.el9_4.1
    fixed: vendor fix RHSA-2025:19012
  • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) libssh-devel 0.9.4-2.el8_4.1, libssh-debuginfo 0.9.4-2.el8_4.1, libssh-debugsource 0.9.4-2.el8_4.1
    fixed: vendor fix RHSA-2025:19401
  • Red Hat Enterprise Linux AppStream TUS (v.8.6) libssh-devel 0.9.6-4.el8_6.1, libssh-debuginfo 0.9.6-4.el8_6.1, libssh-debugsource 0.9.6-4.el8_6.1
    fixed: vendor fix RHSA-2025:19098
  • Red Hat Enterprise Linux AppStream TUS (v.8.8) libssh-devel 0.9.6-13.el8_8.1, libssh-debuginfo 0.9.6-13.el8_8.1, libssh-debugsource 0.9.6-13.el8_8.1
    fixed: vendor fix RHSA-2025:19101
  • Red Hat Enterprise Linux BaseOS (v. 8) libssh 0.9.6-15.el8_10, libssh-config 0.9.6-15.el8_10
    fixed: vendor fix RHSA-2025:18286
  • Red Hat Enterprise Linux BaseOS (v. 9) libssh 0.10.4-15.el9_6, libssh 0.10.4-15.el9_7, libssh-config 0.10.4-15.el9_6, libssh-config 0.10.4-15.el9_7
    fixed: vendor fix RHSA-2025:18275
  • Red Hat Enterprise Linux BaseOS (v. 10) libssh 0.11.1-4.el10_0, libssh 0.11.1-4.el10_1, libssh-config 0.11.1-4.el10_0, libssh-config 0.11.1-4.el10_1
    fixed: vendor fix RHSA-2025:18231
  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) libssh 0.9.0-4.el8_2.1, libssh-config 0.9.0-4.el8_2.1
    fixed: vendor fix RHSA-2025:19400
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) libssh 0.9.4-2.el8_4.1, libssh-config 0.9.4-2.el8_4.1
    fixed: vendor fix RHSA-2025:19401
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) libssh 0.9.6-4.el8_6.1, libssh-config 0.9.6-4.el8_6.1 Red Hat Enterprise Linux BaseOS E4S (v.8.6) libssh 0.9.6-4.el8_6.1, libssh-config 0.9.6-4.el8_6.1
    fixed: vendor fix RHSA-2025:19098
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) libssh 0.9.6-13.el8_8.1, libssh-config 0.9.6-13.el8_8.1
    fixed: vendor fix RHSA-2025:19101
  • Red Hat Enterprise Linux BaseOS E4S (v.9.0) libssh 0.9.6-3.el9_0.1, libssh-config 0.9.6-3.el9_0.1
    fixed: vendor fix RHSA-2025:19472
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) libssh 0.10.4-9.el9_2.1, libssh-config 0.10.4-9.el9_2.1
    fixed: vendor fix RHSA-2025:19470
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) libssh 0.10.4-13.el9_4.1, libssh-config 0.10.4-13.el9_4.1
    fixed: vendor fix RHSA-2025:19012
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) libssh 0.9.4-2.el8_4.1, libssh-config 0.9.4-2.el8_4.1
    fixed: vendor fix RHSA-2025:19401
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) libssh 0.9.6-4.el8_6.1, libssh-config 0.9.6-4.el8_6.1
    fixed: vendor fix RHSA-2025:19098
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) libssh 0.9.6-13.el8_8.1, libssh-config 0.9.6-13.el8_8.1
    fixed: vendor fix RHSA-2025:19101
  • Red Hat OpenShift Container Platform 4.12 rhcos 412.86.202511191939
    fixed: vendor fix RHSA-2025:21829
  • Red Hat OpenShift Container Platform 4.13 rhcos 413.92.202511261311
    fixed: vendor fix RHSA-2025:22275
  • Red Hat OpenShift Container Platform 4.14 rhcos 414.92.202511122212
    fixed: vendor fix RHSA-2025:21329
  • Red Hat OpenShift Container Platform 4.15 rhcos 415.92.202601271320
    fixed: vendor fix RHSA-2026:1541
  • Red Hat OpenShift Container Platform 4.16 rhcos 416.94.202601071926
    fixed: vendor fix RHSA-2026:0326
  • Red Hat OpenShift Container Platform 4.17 rhcos 417.94.202510282022
    fixed: vendor fix RHSA-2025:19313
  • Red Hat OpenShift Container Platform 4.18 rhcos 418.94.202511041748
    fixed: vendor fix RHSA-2025:19864
  • Red Hat OpenShift Container Platform 4.19 rhcos 4.19.9.6.202510281054
    fixed: vendor fix RHSA-2025:19300
  • Red Hat OpenShift Container Platform 4.20 rhcos 4.20.9.6.202510290321
    fixed: vendor fix RHSA-2025:19295
  • Red Hat OpenShift distributed tracing 3.7.0 rhosdt rhosdt-3.7-1762254519, rhosdt rhosdt-3.7-1762254530, rhosdt rhosdt-3.7-1762254545, rhosdt rhosdt-3.7-1762254546, rhosdt rhosdt-3.7-1762254552, rhosdt rhosdt-3.7-1762255881
    fixed: vendor fix RHSA-2025:19807
  • Red Hat OpenShift distributed tracing 3.7.0 rhosdt rhosdt-3.7-1762257871
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
7 mo ago

Exploit prediction

1.89% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CNA 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
OSV 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Affected packages

ecosystem package affected fixed in
julia libssh_jll
<0.11.3+0
0.11.3+0

Affected products

  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support
  • Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  • Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
  • Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  • Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service
  • Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service
  • Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support
  • Red Hat Red Hat OpenShift Container Platform 4.12
  • Red Hat Red Hat OpenShift Container Platform 4.13
  • Red Hat Red Hat OpenShift Container Platform 4.14
  • Red Hat Red Hat OpenShift Container Platform 4.15
  • Red Hat Red Hat OpenShift Container Platform 4.16
  • Red Hat Red Hat OpenShift Container Platform 4.17
  • Red Hat Red Hat OpenShift Container Platform 4.18
  • Red Hat Red Hat OpenShift Container Platform 4.19
  • Red Hat Red Hat OpenShift Container Platform 4.20
  • Red Hat Red Hat AI Inference Server 3.2
  • Red Hat Red Hat OpenShift distributed tracing 3.7.0

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.