Vulnerability-Lookup

OESA-2026-4713 (CVE-2026-104029)

Vulnerability from osv_openeuler – Published: 2026-11-04 13:54 – Updated: 2026-11-04 13:54 – Source website

Summary

sssd security update

Details

Provides a set of daemons to manage access to remote directories and authentication mechanisms. It provides an NSS and PAM interface toward the system and a pluggable back end system to connect to multiple different account sources. It is also the basis to provide client auditing and policy services for projects like FreeIPA.

Security Fix(es):

A flaw was found in SSSD. A local attacker can exploit this vulnerability by sending a specially crafted request to the autofs responder UNIX socket. Due to improper buffer offset calculation during request parsing, the service performs an out-of-bounds memory read. This flaw can cause the autofs responder process to crash, resulting in a denial of service (DoS).(CVE-2026-104029)

A flaw was found in SSSD. In configurations where the autofs responder service is enabled, memory allocated during successful request processing is not released until the client connection terminates. A local attacker can exploit this vulnerability by maintaining an open connection and repeatedly submitting valid requests, leading to memory exhaustion and a Denial of Service (DoS).(CVE-2026-104031)

A flaw was found in SSSD. A local attacker can exploit this issue by sending a specially crafted request with an invalid packet length to the autofs responder UNIX socket. This causes an integer underflow and an out-of-bounds memory read, which can crash the responder process and result in a denial of service (DoS).(CVE-2026-104037)

Severity

5.5 (Medium)


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

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-104029	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-104031	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-104037	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "libipa_hbac-2.9.4-34.oe2403sp4.aarch64.rpm",
          "libipa_hbac-devel-2.9.4-34.oe2403sp4.aarch64.rpm",
          "libsss_autofs-2.9.4-34.oe2403sp4.aarch64.rpm",
          "libsss_certmap-2.9.4-34.oe2403sp4.aarch64.rpm",
          "libsss_certmap-devel-2.9.4-34.oe2403sp4.aarch64.rpm",
          "libsss_idmap-2.9.4-34.oe2403sp4.aarch64.rpm",
          "libsss_idmap-devel-2.9.4-34.oe2403sp4.aarch64.rpm",
          "libsss_nss_idmap-2.9.4-34.oe2403sp4.aarch64.rpm",
          "libsss_nss_idmap-devel-2.9.4-34.oe2403sp4.aarch64.rpm",
          "libsss_sudo-2.9.4-34.oe2403sp4.aarch64.rpm",
          "python3-libipa_hbac-2.9.4-34.oe2403sp4.aarch64.rpm",
          "python3-libsss_nss_idmap-2.9.4-34.oe2403sp4.aarch64.rpm",
          "python3-sss-2.9.4-34.oe2403sp4.aarch64.rpm",
          "python3-sss-murmur-2.9.4-34.oe2403sp4.aarch64.rpm",
          "sssd-2.9.4-34.oe2403sp4.aarch64.rpm",
          "sssd-ad-2.9.4-34.oe2403sp4.aarch64.rpm",
          "sssd-client-2.9.4-34.oe2403sp4.aarch64.rpm",
          "sssd-common-2.9.4-34.oe2403sp4.aarch64.rpm",
          "sssd-common-pac-2.9.4-34.oe2403sp4.aarch64.rpm",
          "sssd-dbus-2.9.4-34.oe2403sp4.aarch64.rpm",
          "sssd-debuginfo-2.9.4-34.oe2403sp4.aarch64.rpm",
          "sssd-debugsource-2.9.4-34.oe2403sp4.aarch64.rpm",
          "sssd-idp-2.9.4-34.oe2403sp4.aarch64.rpm",
          "sssd-ipa-2.9.4-34.oe2403sp4.aarch64.rpm",
          "sssd-kcm-2.9.4-34.oe2403sp4.aarch64.rpm",
          "sssd-krb5-2.9.4-34.oe2403sp4.aarch64.rpm",
          "sssd-krb5-common-2.9.4-34.oe2403sp4.aarch64.rpm",
          "sssd-ldap-2.9.4-34.oe2403sp4.aarch64.rpm",
          "sssd-nfs-idmap-2.9.4-34.oe2403sp4.aarch64.rpm",
          "sssd-proxy-2.9.4-34.oe2403sp4.aarch64.rpm",
          "sssd-tools-2.9.4-34.oe2403sp4.aarch64.rpm",
          "sssd-winbind-idmap-2.9.4-34.oe2403sp4.aarch64.rpm"
        ],
        "noarch": [
          "python3-sssdconfig-2.9.4-34.oe2403sp4.noarch.rpm",
          "sssd-help-2.9.4-34.oe2403sp4.noarch.rpm"
        ],
        "src": [
          "sssd-2.9.4-34.oe2403sp4.src.rpm"
        ],
        "x86_64": [
          "libipa_hbac-2.9.4-34.oe2403sp4.x86_64.rpm",
          "libipa_hbac-devel-2.9.4-34.oe2403sp4.x86_64.rpm",
          "libsss_autofs-2.9.4-34.oe2403sp4.x86_64.rpm",
          "libsss_certmap-2.9.4-34.oe2403sp4.x86_64.rpm",
          "libsss_certmap-devel-2.9.4-34.oe2403sp4.x86_64.rpm",
          "libsss_idmap-2.9.4-34.oe2403sp4.x86_64.rpm",
          "libsss_idmap-devel-2.9.4-34.oe2403sp4.x86_64.rpm",
          "libsss_nss_idmap-2.9.4-34.oe2403sp4.x86_64.rpm",
          "libsss_nss_idmap-devel-2.9.4-34.oe2403sp4.x86_64.rpm",
          "libsss_sudo-2.9.4-34.oe2403sp4.x86_64.rpm",
          "python3-libipa_hbac-2.9.4-34.oe2403sp4.x86_64.rpm",
          "python3-libsss_nss_idmap-2.9.4-34.oe2403sp4.x86_64.rpm",
          "python3-sss-2.9.4-34.oe2403sp4.x86_64.rpm",
          "python3-sss-murmur-2.9.4-34.oe2403sp4.x86_64.rpm",
          "sssd-2.9.4-34.oe2403sp4.x86_64.rpm",
          "sssd-ad-2.9.4-34.oe2403sp4.x86_64.rpm",
          "sssd-client-2.9.4-34.oe2403sp4.x86_64.rpm",
          "sssd-common-2.9.4-34.oe2403sp4.x86_64.rpm",
          "sssd-common-pac-2.9.4-34.oe2403sp4.x86_64.rpm",
          "sssd-dbus-2.9.4-34.oe2403sp4.x86_64.rpm",
          "sssd-debuginfo-2.9.4-34.oe2403sp4.x86_64.rpm",
          "sssd-debugsource-2.9.4-34.oe2403sp4.x86_64.rpm",
          "sssd-idp-2.9.4-34.oe2403sp4.x86_64.rpm",
          "sssd-ipa-2.9.4-34.oe2403sp4.x86_64.rpm",
          "sssd-kcm-2.9.4-34.oe2403sp4.x86_64.rpm",
          "sssd-krb5-2.9.4-34.oe2403sp4.x86_64.rpm",
          "sssd-krb5-common-2.9.4-34.oe2403sp4.x86_64.rpm",
          "sssd-ldap-2.9.4-34.oe2403sp4.x86_64.rpm",
          "sssd-nfs-idmap-2.9.4-34.oe2403sp4.x86_64.rpm",
          "sssd-proxy-2.9.4-34.oe2403sp4.x86_64.rpm",
          "sssd-tools-2.9.4-34.oe2403sp4.x86_64.rpm",
          "sssd-winbind-idmap-2.9.4-34.oe2403sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP4",
        "name": "sssd",
        "purl": "pkg:rpm/openEuler/sssd\u0026distro=openEuler-24.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.9.4-34.oe2403sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "Provides a set of daemons to manage access to remote directories and authentication mechanisms. It provides an NSS and PAM interface toward the system and a pluggable back end system to connect to multiple different account sources. It is also the basis to provide client auditing and policy services for projects like FreeIPA.\r\n\r\nSecurity Fix(es):\n\nA flaw was found in SSSD. A local attacker can exploit this vulnerability by sending a specially crafted request to the autofs responder UNIX socket. Due to improper buffer offset calculation during request parsing, the service performs an out-of-bounds memory read. This flaw can cause the autofs responder process to crash, resulting in a denial of service (DoS).(CVE-2026-104029)\n\nA flaw was found in SSSD. In configurations where the autofs responder service is enabled, memory allocated during successful request processing is not released until the client connection terminates. A local attacker can exploit this vulnerability by maintaining an open connection and repeatedly submitting valid requests, leading to memory exhaustion and a Denial of Service (DoS).(CVE-2026-104031)\n\nA flaw was found in SSSD. A local attacker can exploit this issue by sending a specially crafted request with an invalid packet length to the autofs responder UNIX socket. This causes an integer underflow and an out-of-bounds memory read, which can crash the responder process and result in a denial of service (DoS).(CVE-2026-104037)",
  "id": "OESA-2026-4713",
  "modified": "2026-11-04T13:54:47Z",
  "published": "2026-11-04T13:54:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4713"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104029"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104031"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-104037"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "sssd security update",
  "upstream": [
    "CVE-2026-104029",
    "CVE-2026-104031",
    "CVE-2026-104037"
  ]
}

CVE-2026-104029 (GCVE-0-2026-104029)

Vulnerability from cvelistv5 – Published: 2026-10-05 19:13 – Updated: 2026-10-31 10:02

Title

Sssd: sssd: denial of service via out-of-bounds read in autofs responder

Summary

Severity

3.3 (Low)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-07 21:43 UTC

CWE

CWE-125 - Out-of-bounds Read

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1088 records in the last 180 days details

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-104029	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2479444	issue-trackingx_refsource_REDHAT

Impacted products

7 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4
Red Hat	Red Hat OpenShift Container Platform 5	cpe:/a:redhat:openshift:5

Date Public

2026-10-05 17:11

Credits

This issue was discovered by Found by AISLE in partnership with Red Hat.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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                    "Technical Impact": "partial"
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}

CVE-2026-104031 (GCVE-0-2026-104031)

Vulnerability from cvelistv5 – Published: 2026-10-06 00:10 – Updated: 2026-10-16 10:57

Title

Sssd: sssd: denial of service via memory exhaustion in autofs responder

Summary

Severity

5.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-06 13:01 UTC

CWE

CWE-772 - Missing Release of Resource after Effective Lifetime

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1088 records in the last 180 days details

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-104031	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2479418	issue-trackingx_refsource_REDHAT

Impacted products

6 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

Date Public

2026-10-05 21:45

Credits

This issue was discovered by Found by AISLE in partnership with Red Hat.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
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                "id": "CVE-2026-104031",
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                  },
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                    "Technical Impact": "partial"
                  }
                ],
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                "timestamp": "2026-10-06T13:01:37.457324Z",
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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CVE-2026-104037 (GCVE-0-2026-104037)

Vulnerability from cvelistv5 – Published: 2026-10-06 00:12 – Updated: 2026-10-16 10:57

Title

Sssd: sssd: denial of service via packet length underflow in autofs responder

Summary

Severity

5.5 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-06 13:27 UTC

CWE

CWE-125 - Out-of-bounds Read

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1088 records in the last 180 days details

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-104037	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2479030	issue-trackingx_refsource_REDHAT

Impacted products

6 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

Date Public

2026-10-05 23:50

Credits

This issue was discovered by Found by AISLE in partnership with Red Hat.

Show details on NVD website

JSON

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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.
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CVE-2026-104037 (GCVE-0-2026-104037)

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