Vulnerability-Lookup

SUSE-SU-2021:0928-1

Vulnerability from csaf_suse - Published: 2021-03-24 11:06 - Updated: 2021-03-24 11:06

Summary

Security update for sudo

Severity

Important

Notes

Title of the patch: Security update for sudo

Description of the patch: This update for sudo fixes the following issues: - Fixed a potential crash on exit as a result of the fix of CVE-2021-3156 [bsc#1181090]

Patchnames: SUSE-2021-928,SUSE-OpenStack-Cloud-7-2021-928,SUSE-SLE-SAP-12-SP2-2021-928,SUSE-SLE-SERVER-12-SP2-2021-928,SUSE-SLE-SERVER-12-SP2-BCL-2021-928

CVE-2021-3156

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 8 products

Product	Version	Remediation
Unresolved product id: SUSE Linux Enterprise Server 12 SP2-BCL:sudo-1.8.10p3-10.32.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP2-LTSS:sudo-1.8.10p3-10.32.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP2-LTSS:sudo-1.8.10p3-10.32.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP2-LTSS:sudo-1.8.10p3-10.32.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 12 SP2:sudo-1.8.10p3-10.32.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 12 SP2:sudo-1.8.10p3-10.32.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE OpenStack Cloud 7:sudo-1.8.10p3-10.32.1.s390x	—	Vendor Fix
Unresolved product id: SUSE OpenStack Cloud 7:sudo-1.8.10p3-10.32.1.x86_64	—	Vendor Fix

Threats

Impact important

References

14 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/s…	self
https://www.suse.com/support/update/announcement/…	self
https://lists.suse.com/pipermail/sle-security-upd…	self
https://bugzilla.suse.com/1181090	self
https://www.suse.com/security/cve/CVE-2021-3156/	self
https://www.suse.com/security/cve/CVE-2021-3156	external
https://bugzilla.suse.com/1180684	external
https://bugzilla.suse.com/1181090	external
https://bugzilla.suse.com/1181506	external
https://bugzilla.suse.com/1181657	external
https://bugzilla.suse.com/1183936	external
https://bugzilla.suse.com/1218863	external
https://bugzilla.suse.com/1225623	external

JSON

To clipboard

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  "vulnerabilities": [
    {
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        }
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        {
          "category": "general",
          "text": "Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via \"sudoedit -s\" and a command-line argument that ends with a single backslash character.",
          "title": "CVE description"
        }
      ],
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          "url": "https://www.suse.com/security/cve/CVE-2021-3156"
        },
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          "summary": "SUSE Bug 1180684 for CVE-2021-3156",
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          "summary": "SUSE Bug 1181090 for CVE-2021-3156",
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        {
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          "summary": "SUSE Bug 1181506 for CVE-2021-3156",
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        {
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          "url": "https://bugzilla.suse.com/1183936"
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        {
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          "summary": "SUSE Bug 1218863 for CVE-2021-3156",
          "url": "https://bugzilla.suse.com/1218863"
        },
        {
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          "summary": "SUSE Bug 1225623 for CVE-2021-3156",
          "url": "https://bugzilla.suse.com/1225623"
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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": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
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            "SUSE Linux Enterprise Server 12 SP2-LTSS:sudo-1.8.10p3-10.32.1.s390x",
            "SUSE Linux Enterprise Server 12 SP2-LTSS:sudo-1.8.10p3-10.32.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP2:sudo-1.8.10p3-10.32.1.ppc64le",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP2:sudo-1.8.10p3-10.32.1.x86_64",
            "SUSE OpenStack Cloud 7:sudo-1.8.10p3-10.32.1.s390x",
            "SUSE OpenStack Cloud 7:sudo-1.8.10p3-10.32.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2021-03-24T11:06:27Z",
          "details": "important"
        }
      ],
      "title": "CVE-2021-3156"
    }
  ]
}

CVE-2021-3156 (GCVE-0-2021-3156)

Vulnerability from cvelistv5 – Published: 2021-01-26 00:00 – Updated: 2025-10-21 23:35

Summary

Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.

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 2025-02-03 15:43 UTC

CWE

n/a
CWE-193 - Off-by-one Error

Assigner

mitre mitre root

References

35 references

URL	Tags
https://lists.debian.org/debian-lts-announce/2021…	mailing-list
http://seclists.org/fulldisclosure/2021/Jan/79	mailing-list
http://www.openwall.com/lists/oss-security/2021/01/26/3	mailing-list
https://security.gentoo.org/glsa/202101-33	vendor-advisory
https://www.debian.org/security/2021/dsa-4839	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
http://www.openwall.com/lists/oss-security/2021/01/27/1	mailing-list
http://www.openwall.com/lists/oss-security/2021/01/27/2	mailing-list
https://tools.cisco.com/security/center/content/C…	vendor-advisory
https://www.kb.cert.org/vuls/id/794544	third-party-advisory
http://seclists.org/fulldisclosure/2021/Feb/42	mailing-list
http://www.openwall.com/lists/oss-security/2021/02/15/1	mailing-list
https://www.oracle.com//security-alerts/cpujul2021.html
https://www.sudo.ws/stable.html#1.9.5p2
https://www.openwall.com/lists/oss-security/2021/…
http://packetstormsecurity.com/files/161160/Sudo-…
https://security.netapp.com/advisory/ntap-2021012…
https://security.netapp.com/advisory/ntap-2021012…
http://packetstormsecurity.com/files/161230/Sudo-…
http://packetstormsecurity.com/files/161270/Sudo-…
http://packetstormsecurity.com/files/161293/Sudo-…
https://support.apple.com/kb/HT212177
https://kc.mcafee.com/corporate/index?page=conten…
https://www.beyondtrust.com/blog/entry/security-a…
https://www.synology.com/security/advisory/Synolo…
http://www.openwall.com/lists/oss-security/2021/09/14/2	mailing-list
https://www.oracle.com/security-alerts/cpuoct2021.html
https://www.oracle.com/security-alerts/cpuapr2022.html
http://www.openwall.com/lists/oss-security/2024/01/30/8	mailing-list
http://www.openwall.com/lists/oss-security/2024/01/30/6	mailing-list
http://packetstormsecurity.com/files/176932/glibc…
http://seclists.org/fulldisclosure/2024/Feb/3	mailing-list
https://www.vicarius.io/vsociety/posts/sudoedit-p…
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Show details on NVD website

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To clipboard

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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.

Detection rules are retrieved from Rulezet.

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.