CVE-2018-6952

mediumpriority · track · 33EPSS 0.082 · 95 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

8.19% (95th) EPSS

CVSS 5 · medium

Is it mine?

34 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

A double free exists in the another_hunk function in pch.c in GNU patch through 2.7.6.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixedpatch-0:2.7.1-11.el7.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2019:2033
Fixedpatch-0:2.7.1-11.el7.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2019:2033
Fixedpatch-0:2.7.1-11.el7.s390x as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2019:2033
Fixedpatch-0:2.7.1-11.el7.src as a component of Red Hat Enterprise Linux Client (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2019:2033
Fixedpatch-0:2.7.1-11.el7.src as a component of Red Hat Enterprise Linux ComputeNode (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2019:2033
Fixedpatch-0:2.7.1-11.el7.src as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2019:2033
Fixedpatch-0:2.7.1-11.el7.src as a component of Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2019:2033
Fixedpatch-0:2.7.1-11.el7.x86_64 as a component of Red Hat Enterprise Linux Client (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2019:2033
Fixedpatch-0:2.7.1-11.el7.x86_64 as a component of Red Hat Enterprise Linux ComputeNode (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2019:2033
Fixedpatch-0:2.7.1-11.el7.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2019:2033
Fixedpatch-0:2.7.1-11.el7.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2019:2033
Fixedpatch-debuginfo-0:2.7.1-11.el7.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2019:2033
Fixedpatch-debuginfo-0:2.7.1-11.el7.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2019:2033
Fixedpatch-debuginfo-0:2.7.1-11.el7.s390x as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2019:2033
Fixedpatch-debuginfo-0:2.7.1-11.el7.x86_64 as a component of Red Hat Enterprise Linux Client (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2019:2033
Fixedpatch-debuginfo-0:2.7.1-11.el7.x86_64 as a component of Red Hat Enterprise Linux ComputeNode (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2019:2033
Fixedpatch-debuginfo-0:2.7.1-11.el7.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2019:2033
Fixedpatch-debuginfo-0:2.7.1-11.el7.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2019:2033
FixedFirmware < 2025.0.2 installed on AXC F 1152phoenix_contact_psirt
Update to the latest 2025.0.2 Firmware Release. PHOENIX CONTACT recommends to always use an up-to-date version of the PLCnext Engineer.
FixedFirmware < 2025.0.2 installed on AXC F 2152phoenix_contact_psirt
Update to the latest 2025.0.2 Firmware Release. PHOENIX CONTACT recommends to always use an up-to-date version of the PLCnext Engineer.
FixedFirmware < 2025.0.2 installed on AXC F 3152phoenix_contact_psirt
Update to the latest 2025.0.2 Firmware Release. PHOENIX CONTACT recommends to always use an up-to-date version of the PLCnext Engineer.
FixedFirmware < 2025.0.2 installed on BPC 9102Sphoenix_contact_psirt
Update to the latest 2025.0.2 Firmware Release. PHOENIX CONTACT recommends to always use an up-to-date version of the PLCnext Engineer.
FixedFirmware < 2025.0.2 installed on RFC 4072Sphoenix_contact_psirt
Update to the latest 2025.0.2 Firmware Release. PHOENIX CONTACT recommends to always use an up-to-date version of the PLCnext Engineer.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–high · 3.3–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Psecondary · Phoenix Contact PSIRT DE

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · Phoenix Contact PSIRT DE

v3.03.3lowCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Lsecondary · Red Hat Product Security US

v3.06.9mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-415USprimaryCWE-415USCWE-415USCWE-416US

affected products (34)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 1.7fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 11fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 10fstec_bduRU
Сообщество свободного программного обеспечения Patch≤ 2.7.6fstec_bduRU
gnu patch≤ 2.7.6nvdUScpe:2.3:a:gnu:patch:*:*:*:*:*:*:*:*
Firmware 2025.0.2 installed on AXC F 1152all versionsfixedphoenix_contact_psirtDE
Firmware 2025.0.2 installed on AXC F 2152all versionsfixedphoenix_contact_psirtDE
Firmware 2025.0.2 installed on AXC F 3152all versionsfixedphoenix_contact_psirtDE
Firmware 2025.0.2 installed on BPC 9102Sall versionsfixedphoenix_contact_psirtDE
Firmware 2025.0.2 installed on RFC 4072Sall versionsfixedphoenix_contact_psirtDE
Firmware < 2025.0.2 installed on AXC F 1152all versionsphoenix_contact_psirtDE
Firmware < 2025.0.2 installed on AXC F 2152all versionsphoenix_contact_psirtDE
Firmware < 2025.0.2 installed on AXC F 3152all versionsphoenix_contact_psirtDE
Firmware < 2025.0.2 installed on BPC 9102Sall versionsphoenix_contact_psirtDE
Firmware < 2025.0.2 installed on RFC 4072Sall versionsphoenix_contact_psirtDE
patch-0:2.7.1-11.el7.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7)all versionsfixedredhat_csafUS
patch-0:2.7.1-11.el7.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7)all versionsfixedredhat_csafUS
patch-0:2.7.1-11.el7.s390x as a component of Red Hat Enterprise Linux Server (v. 7)all versionsfixedredhat_csafUS
patch-0:2.7.1-11.el7.src as a component of Red Hat Enterprise Linux Client (v. 7)all versionsfixedredhat_csafUS

showing 20 of 34

advisories (2)

Vendor and ecosystem advisories describing this.

RHSA-2019:2033Red Hat Security Advisory: patch security and bug fix update2019-08-06csaf · redhat_csafUS
An update for patch is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
VDE-2025-053Phoenix Contact: Multiple Vulnerabilities in PLCnext Firmware2025-07-08csaf · phoenix_contact_psirtDE
Multiple Linux component vulnerabilities fixed in latest PLCnext Firmware release 2025.0.2

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd phoenix_contact_psirt redhat_csaf NVD CVE.org MITRE

published 2018-02-13modified 2026-06-17

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+1203 more

references (15)

External citations — patches, advisories, analysis.

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