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CVE-2025-6020— Linux-pam: linux-pam directory traversal

Quick assessment

Affected
CVE-2025-6020
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux-pam是Linux团队的一款用于Linux的支持插拔式的系统身份验证软件。 Linux-pam存在安全漏洞，该漏洞源于pam_namespace模块使用用户控制路径时保护不足，可能导致本地用户通过符号链接攻击和竞争条件提升至root权限。

CVSS 7.8 · High EPSS 0.44% · P37

Affected Version Matrix 61

VendorProduct Version RangeStatus
None None < 1.7.1 affected
Red Hat cert-manager operator for Red Hat OpenShift 1.16 v1.16.5-1760515757< * unaffected
Red Hat Compliance Operator 1 1.8.0< * unaffected
Red Hat Red Hat Discovery 2 2.0.0-1752592913< * unaffected
2.2.1-1758555934< * unaffected
Red Hat Red Hat Enterprise Linux 10 0:1.6.1-8.el10< * unaffected
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support 0:1.6.1-8.el10_0< * unaffected
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support 0:1.1.8-23.el7_9.1< * unaffected
Red Hat Red Hat Enterprise Linux 8 0:1.3.1-37.el8_10< * unaffected
0:1.3.1-38.el8_10< * unaffected
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support 0:1.3.1-8.el8_2.1< * unaffected
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:1.3.1-14.el8_4.1< * unaffected
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:1.3.1-16.el8_6.2< * unaffected
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service 0:1.3.1-16.el8_6.2< * unaffected
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:1.3.1-16.el8_6.2< * unaffected
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:1.3.1-26.el8_8.1< * unaffected
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:1.3.1-26.el8_8.1< * unaffected
Red Hat Red Hat Enterprise Linux 9 0:1.5.1-26.el9_6< * unaffected
0:1.5.1-25.el9_6< * unaffected
0:1.5.1-26.el9_6< * unaffected
0:1.5.1-25.el9_6< * unaffected
Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions 0:1.5.1-9.el9_0.2< * unaffected
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:1.5.1-15.el9_2.1< * unaffected
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support 0:1.5.1-24.el9_4< * unaffected
Red Hat Red Hat Insights proxy 1.5 1.5.7-1759331989< * unaffected
Red Hat Red Hat OpenShift distributed tracing 3.6.1 rhosdt-3.6-1752046452< * unaffected
rhosdt-3.6-1752046437< * unaffected
rhosdt-3.6-1752046439< * unaffected
rhosdt-3.6-1752070865< * unaffected
rhosdt-3.6-1752070873< * unaffected
rhosdt-3.6-1751993590< * unaffected
rhosdt-3.6-1752070827< * unaffected
rhosdt-3.6-1752070833< * unaffected
… +1 more rows
Red Hat Red Hat OpenShift sandboxed containers 1.1 1.10.2-1757422110< * unaffected
1.10.2-1757421804< * unaffected
1.10.2-1757421879< * unaffected
1.10.2-1757422401< * unaffected
Red Hat Red Hat Web Terminal 1.11 on RHEL 9 1.11-19< * unaffected
1.11-8< * unaffected
Red Hat Red Hat Web Terminal 1.12 on RHEL 9 1.12-4< * unaffected
Red Hat RHEL-8 based Middleware Containers 7.13.5-4.1752066672< * unaffected
7.13.5-4.1752065732< * unaffected
7.13.5-4.1752065732< * unaffected
7.13.5-3.1752065737< * unaffected
7.13.5-4.1752065731< * unaffected
7.13.5-25< * unaffected
7.13.5-4.1752065736< * unaffected
7.13.5-2.1752065733< * unaffected
… +1 more rows
Red Hat RHOSS-1.36-RHEL-8 1.36.0-11< * unaffected
1.36.0-11< * unaffected
1.36.0-11< * unaffected
1.36.0-10< * unaffected
1.36.0-10< * unaffected
1.36.0-4< * unaffected
1.36.0-9< * unaffected
1.36.0-12< * unaffected
… +3 more rows

I. Basic Information for CVE-2025-6020

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Linux-pam: linux-pam directory traversal
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in linux-pam. The module pam_namespace may use access user-controlled paths without proper protection, allowing local users to elevate their privileges to root via multiple symlink attacks and race conditions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Linux-pam 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux-pam是Linux团队的一款用于Linux的支持插拔式的系统身份验证软件。 Linux-pam存在安全漏洞，该漏洞源于pam_namespace模块使用用户控制路径时保护不足，可能导致本地用户通过符号链接攻击和竞争条件提升至root权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- - 0 ~ 1.7.1 -
Red Hat Red Hat Enterprise Linux 10 0:1.6.1-8.el10 ~ * cpe:/o:redhat:enterprise_linux:10.1
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support 0:1.6.1-8.el10_0 ~ * cpe:/o:redhat:enterprise_linux_eus:10.0
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support 0:1.1.8-23.el7_9.1 ~ * cpe:/o:redhat:rhel_els:7
Red Hat Red Hat Enterprise Linux 8 0:1.3.1-37.el8_10 ~ * cpe:/o:redhat:enterprise_linux:8::baseos
Red Hat Red Hat Enterprise Linux 8 0:1.3.1-38.el8_10 ~ * cpe:/o:redhat:enterprise_linux:8::baseos
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support 0:1.3.1-8.el8_2.1 ~ * cpe:/o:redhat:rhel_aus:8.2::baseos
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:1.3.1-14.el8_4.1 ~ * cpe:/o:redhat:rhel_aus:8.4::baseos
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:1.3.1-16.el8_6.2 ~ * cpe:/o:redhat:rhel_aus:8.6::baseos
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service 0:1.3.1-16.el8_6.2 ~ * cpe:/o:redhat:rhel_aus:8.6::baseos
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:1.3.1-16.el8_6.2 ~ * cpe:/o:redhat:rhel_aus:8.6::baseos
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:1.3.1-26.el8_8.1 ~ * cpe:/o:redhat:rhel_e4s:8.8::baseos
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:1.3.1-26.el8_8.1 ~ * cpe:/o:redhat:rhel_e4s:8.8::baseos
Red Hat Red Hat Enterprise Linux 9 0:1.5.1-26.el9_6 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat Red Hat Enterprise Linux 9 0:1.5.1-25.el9_6 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat Red Hat Enterprise Linux 9 0:1.5.1-26.el9_6 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat Red Hat Enterprise Linux 9 0:1.5.1-25.el9_6 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions 0:1.5.1-9.el9_0.2 ~ * cpe:/a:redhat:rhel_e4s:9.0::appstream
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:1.5.1-15.el9_2.1 ~ * cpe:/a:redhat:rhel_e4s:9.2::appstream
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support 0:1.5.1-24.el9_4 ~ * cpe:/a:redhat:rhel_eus:9.4::appstream
Red Hat Red Hat Web Terminal 1.11 on RHEL 9 1.11-19 ~ * cpe:/a:redhat:webterminal:1.11::el9
Red Hat Red Hat Web Terminal 1.11 on RHEL 9 1.11-8 ~ * cpe:/a:redhat:webterminal:1.11::el9
Red Hat Red Hat Web Terminal 1.12 on RHEL 9 1.12-4 ~ * cpe:/a:redhat:webterminal:1.12::el9
Red Hat RHEL-8 based Middleware Containers 7.13.5-4.1752066672 ~ * cpe:/a:redhat:rhosemc:1.0::el8
Red Hat RHEL-8 based Middleware Containers 7.13.5-4.1752065732 ~ * cpe:/a:redhat:rhosemc:1.0::el8
Red Hat RHEL-8 based Middleware Containers 7.13.5-4.1752065732 ~ * cpe:/a:redhat:rhosemc:1.0::el8
Red Hat RHEL-8 based Middleware Containers 7.13.5-3.1752065737 ~ * cpe:/a:redhat:rhosemc:1.0::el8
Red Hat RHEL-8 based Middleware Containers 7.13.5-4.1752065731 ~ * cpe:/a:redhat:rhosemc:1.0::el8
Red Hat RHEL-8 based Middleware Containers 7.13.5-25 ~ * cpe:/a:redhat:rhosemc:1.0::el8
Red Hat RHEL-8 based Middleware Containers 7.13.5-4.1752065736 ~ * cpe:/a:redhat:rhosemc:1.0::el8

II. Public POCs for CVE-2025-6020

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 13285 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2025-6020

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Vendor Advisories for CVE-2025-6020 (14)

IV. Related Vulnerabilities

Same weakness: CWE-22

V. Comments for CVE-2025-6020

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