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CVE-2023-3758· NVD / CVE Program· CNA redhat

Sssd: race condition during authorization leads to gpo policies functioning inconsistently

Noroxi assessment

Priority: Monitor (action score 28/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 1% (FIRST EPSS); higher than 63.1% of all records.
  • Someone on the same network segment can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: sssd.io/ sssd 2.9.5.

Low priority for now. Upgrade to sssd.io/ sssd 2.9.5 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A race condition flaw was found in sssd where the GPO policy is not consistently applied for authenticated users. This may lead to improper authorization issues, granting or denying access to resources inappropriately.

HighCVSS 7.1 · v3.1—No exploit Fix available
Published
Apr 18, 2024
Updated
Jun 17, 2026
EPSS
1.0% · 63th percentile

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.0%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · redhat
7.1
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
fedoraprojectsssd
fedoraprojectfedora
redhatcodeready linux builder
redhatcodeready linux builder eus
redhatcodeready linux builder for arm64
redhatcodeready linux builder for arm64 eus
redhatcodeready linux builder for ibm z systems
redhatcodeready linux builder for ibm z systems eus
redhatcodeready linux builder for power little endian
redhatcodeready linux builder for power little endian eus
redhatvirtualization host
redhatenterprise linux

and 11 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • fedoraproject fedora38
  • fedoraproject fedora39
  • fedoraproject fedora40
  • fedoraproject sssdbefore 2.9.5
  • redhat codeready linux builder8.0
  • redhat codeready linux builder eus8.6
  • redhat codeready linux builder eus8.8
  • redhat codeready linux builder eus9.0
  • redhat codeready linux builder eus9.2
  • redhat codeready linux builder eus9.4
  • redhat codeready linux builder eus9.6
  • redhat codeready linux builder for arm648.0_aarch64
  • redhat codeready linux builder for arm64 eus8.6_aarch64
  • redhat codeready linux builder for arm64 eus8.8_aarch64
  • redhat codeready linux builder for arm64 eus9.0_aarch64
  • redhat codeready linux builder for arm64 eus9.2_aarch64
  • redhat codeready linux builder for arm64 eus9.4_aarch64
  • redhat codeready linux builder for arm64 eus9.6_aarch64
  • redhat codeready linux builder for ibm z systems8.0_s390x
  • redhat codeready linux builder for ibm z systems eus8.6_s390x

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • Red Hat Red Hat Enterprise Linux 6

    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 7

    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 8

    • 0:2.9.4-3.el8_10 and laternot affected · rpm
    • 0:2.9.4-3.el8_10 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support

    • 0:2.6.2-4.el8_6.3 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support

    • 0:2.8.2-4.el8_8.2 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 9

    • 0:2.9.4-6.el9_4 and laternot affected · rpm
    • 0:2.9.4-6.el9_4 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support

    • 0:2.6.2-4.el9_0.3 and laternot affected · rpm

  • Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support

    • 0:2.8.2-5.el9_2.4 and laternot affected · rpm

  • Red Hat Red Hat Virtualization 4 for Red Hat Enterprise Linux 8

    • 0:2.6.2-4.el8_6.3 and laternot affected · rpm

  • sssd.io/ sssd

    • before 2.9.5affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:8libipa_hbacbefore 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8libsss_autofsbefore 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8libsss_certmapbefore 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8libsss_idmapbefore 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8libsss_nss_idmapbefore 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8libsss_nss_idmap-develbefore 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8libsss_simpleifpbefore 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8libsss_sudobefore 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8python3-libipa_hbacbefore 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8python3-libsss_nss_idmapbefore 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8python3-sssbefore 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8python3-sss-murmurbefore 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8python3-sssdconfigbefore 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8sssdbefore 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8sssd-adbefore 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8sssd-clientbefore 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8sssd-commonbefore 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8sssd-common-pacbefore 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8sssd-dbusbefore 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8sssd-idpbefore 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8sssd-ipabefore 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8sssd-kcmbefore 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8sssd-krb5before 2.9.4-3.el8_102.9.4-3.el8_10
AlmaLinux:8sssd-krb5-commonbefore 2.9.4-3.el8_102.9.4-3.el8_10

+96

Same product

fedoraproject: all records

Other highest-scoring records for the same primary product.

  • CVE-2021-3621A flaw was found in SSSD, where the sssctl command was vulnerable to shell command injection via the logs-fetch and cache-expire subcommands
    36Monitor
  • CVE-2022-4254sssd: libsss_certmap fails to sanitise certificate data used in LDAP filters
    35Monitor
  • CVE-2012-3462A flaw was found in SSSD version 1.9.0.
    35Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2019-3811Jan 15, 2019 · A vulnerability was found in sssd.
    20Monitor
  • ← EarlierCVE-2018-16838Mar 25, 2019 · A flaw was found in sssd Group Policy Objects implementation.
    21Monitor
  • Later →CVE-2026-6245Apr 15, 2026 · Sssd: out-of-bounds read in the sssd
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
sssd.io/ sssd2.9.5Vendor (CNA)
almalinux:libipa_hbac2.9.4-6.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:libsss_autofs2.9.4-6.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:libsss_certmap2.9.4-6.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:libsss_idmap2.9.4-6.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:libsss_nss_idmap2.9.4-6.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:libsss_nss_idmap-devel2.9.4-6.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:libsss_simpleifp2.9.4-6.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:libsss_sudo2.9.4-6.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:python3-libipa_hbac2.9.4-6.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:python3-libsss_nss_idmap2.9.4-6.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:python3-sss2.9.4-6.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:python3-sss-murmur2.9.4-6.el9_4 · AlmaLinux:9Package registry (OSV)
debian:sssd2.8.2-4+deb12u1 · Debian:12Package registry (OSV)
opensuse:sssd2.5.2-150400.4.27.1 · openSUSE:Leap Micro 5.3Package registry (OSV)
red hat:libipa_hbac0:2.6.2-4.el9_0.3 · Red Hat:rhel_eus:9.0::baseosPackage registry (OSV)
red hat:libipa_hbac-debuginfo0:2.6.2-4.el9_0.3 · Red Hat:rhel_eus:9.0::baseosPackage registry (OSV)
red hat:libsss_autofs0:2.6.2-4.el9_0.3 · Red Hat:rhel_eus:9.0::baseosPackage registry (OSV)
red hat:libsss_autofs-debuginfo0:2.6.2-4.el9_0.3 · Red Hat:rhel_eus:9.0::baseosPackage registry (OSV)
red hat:libsss_certmap0:2.6.2-4.el9_0.3 · Red Hat:rhel_eus:9.0::baseosPackage registry (OSV)
red hat:libsss_certmap-debuginfo0:2.6.2-4.el9_0.3 · Red Hat:rhel_eus:9.0::baseosPackage registry (OSV)
red hat:libsss_idmap0:2.6.2-4.el9_0.3 · Red Hat:rhel_eus:9.0::baseosPackage registry (OSV)
red hat:libsss_idmap-debuginfo0:2.6.2-4.el9_0.3 · Red Hat:rhel_eus:9.0::baseosPackage registry (OSV)
red hat:libsss_nss_idmap0:2.6.2-4.el9_0.3 · Red Hat:rhel_eus:9.0::baseosPackage registry (OSV)
red hat:libsss_nss_idmap-debuginfo0:2.6.2-4.el9_0.3 · Red Hat:rhel_eus:9.0::baseosPackage registry (OSV)
red hat:libsss_simpleifp0:2.6.2-4.el9_0.3 · Red Hat:rhel_eus:9.0::baseosPackage registry (OSV)
red hat:libsss_simpleifp-debuginfo0:2.6.2-4.el9_0.3 · Red Hat:rhel_eus:9.0::baseosPackage registry (OSV)
rocky linux:sssd0:2.9.4-6.el9_4 · Rocky Linux:9Package registry (OSV)
suse:sssd1.16.1-150300.23.43.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSPackage registry (OSV)
suse:sssd2.5.2-150400.4.27.1 · SUSE:Linux Enterprise Micro 5.3Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone on the same network segment can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Adjacent
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSS vector

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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (11 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records