Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-w97f-w3hq-36g2
Advisory ID github_osv/GHSA-w97f-w3hq-36g2
Aliases CVE-2023-6841
Summary Keycloak Denial of Service vulnerability A denial of service vulnerability was found in keycloak where the amount of attributes per object is not limited, an attacker by sending repeated HTTP requests could cause a resource exhaustion when the application send back rows with long attribute values. The issue is fixed in Keycloak 24 with the introduction of the User Profile feature.
Status Published
Exploitability 0.5
Weighted Severity 6.4
Risk 3.2
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-231 Improper Handling of Extra Values
System Score Found at
cvssv3.1 6.5 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/09/GHSA-w97f-w3hq-36g2/GHSA-w97f-w3hq-36g2.json
cvssv4 7.1 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/09/GHSA-w97f-w3hq-36g2/GHSA-w97f-w3hq-36g2.json
generic_textual HIGH
Reference id Reference type URL
https://bugzilla.redhat.com/show_bug.cgi?id=2254714
https://github.com/keycloak/keycloak
https://github.com/keycloak/keycloak/issues/32837
https://github.com/keycloak/keycloak/releases/tag/24.0.0
CVE-2023-6841 https://access.redhat.com/security/cve/CVE-2023-6841
CVE-2023-6841 https://nvd.nist.gov/vuln/detail/CVE-2023-6841
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/09/GHSA-w97f-w3hq-36g2/GHSA-w97f-w3hq-36g2.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/09/GHSA-w97f-w3hq-36g2/GHSA-w97f-w3hq-36g2.json
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-10-01T20:20:35Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2023/6xxx/CVE-2023-6841.json

Source Advisory: vulnrichment/CVE-2023-6841

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'yes'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]