Vulnerability-Lookup

RHSA-2022:0274

Vulnerability from csaf_opensuse - Published: 2022-01-25 00:00 - Updated: 2026-09-20 11:18

Summary

security update for polkit

Severity

Important

Notes

Title of the patch: security update for polkit

Description of the patch: This security update provides a functional equivalent of RHSA-2022:0274. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2022:0274.

Patchnames: RHSA-2022:0274

CVE-2021-4034

7.8 (High)


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

Affected products

Recommended 10 products

Product	Version	Remediation
Unresolved product id: SUSE Liberty Linux 7 LTSS:polkit-0:0.112-26.el7_9.1.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7 LTSS:polkit-0:0.112-26.el7_9.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7 LTSS:polkit-devel-0:0.112-26.el7_9.1.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7 LTSS:polkit-devel-0:0.112-26.el7_9.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7 LTSS:polkit-docs-0:0.112-26.el7_9.1.noarch	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:polkit-0:0.112-26.el7_9.1.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:polkit-0:0.112-26.el7_9.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:polkit-devel-0:0.112-26.el7_9.1.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:polkit-devel-0:0.112-26.el7_9.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:polkit-docs-0:0.112-26.el7_9.1.noarch	—	Vendor Fix

Threats

Impact important

References

15 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/r…	self
https://www.suse.com/security/cve/CVE-2021-4034/	self
https://www.suse.com/security/cve/CVE-2021-4034	external
https://bugzilla.suse.com/1194568	external
https://bugzilla.suse.com/1195125	external
https://bugzilla.suse.com/1195136	external
https://bugzilla.suse.com/1195246	external
https://bugzilla.suse.com/1195265	external
https://bugzilla.suse.com/1195278	external
https://bugzilla.suse.com/1195528	external
https://bugzilla.suse.com/1195541	external
https://bugzilla.suse.com/1196165	external
https://bugzilla.suse.com/1196388	external
https://bugzilla.suse.com/1225668	external

JSON

To clipboard

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  "vulnerabilities": [
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          "title": "CVE description"
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          "url": "https://bugzilla.suse.com/1225668"
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      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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      "scores": [
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            "SUSE Liberty Linux 7:polkit-0:0.112-26.el7_9.1.i686",
            "SUSE Liberty Linux 7:polkit-0:0.112-26.el7_9.1.x86_64",
            "SUSE Liberty Linux 7:polkit-devel-0:0.112-26.el7_9.1.i686",
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            "SUSE Liberty Linux 7:polkit-docs-0:0.112-26.el7_9.1.noarch"
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      "threats": [
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          "category": "impact",
          "date": "2022-01-25T00:00:00Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-4034"
    }
  ]
}

CVE-2021-4034 (GCVE-0-2021-4034)

Vulnerability from cvelistv5 – Published: 2022-01-28 00:00 – Updated: 2026-08-15 03:55

Summary

A local privilege escalation vulnerability was found on polkit's pkexec utility. The pkexec application is a setuid tool designed to allow unprivileged users to run commands as privileged users according predefined policies. The current version of pkexec doesn't handle the calling parameters count correctly and ends trying to execute environment variables as commands. An attacker can leverage this by crafting environment variables in such a way it'll induce pkexec to execute arbitrary code. When successfully executed the attack can cause a local privilege escalation given unprivileged users administrative rights on the target machine.

Severity

7.8 (High)


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

SSVC

Exploitation: active Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2022-06-27 00:00 UTC

CWE

CWE-787 - (CWE-787|CWE-125)

Assigner

redhat redhat root

References

13 references

URL	Tags
https://access.redhat.com/security/vulnerabilitie…
https://www.qualys.com/2022/01/25/cve-2021-4034/p…
https://bugzilla.redhat.com/show_bug.cgi?id=2025869
https://gitlab.freedesktop.org/polkit/polkit/-/co…
https://www.oracle.com/security-alerts/cpuapr2022.html
http://packetstormsecurity.com/files/166196/Polki…
http://packetstormsecurity.com/files/166200/Polki…
https://www.suse.com/support/kb/doc/?id=000020564
https://cert-portal.siemens.com/productcert/pdf/s…
https://www.starwindsoftware.com/security/sw-2022…
https://www.secpod.com/blog/local-privilege-escal…
https://www.vicarius.io/vsociety/posts/pwnkit-pke…
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Impacted products

1 product

Vendor	Product	Version
n/a	polkit	Affected: all

Show details on NVD website

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

RHSA-2022:0274

CVE-2021-4034 (GCVE-0-2021-4034)

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Nomenclature

Related by attack behaviour