Bug 2228528 (CVE-2023-3900)

Summary: CVE-2023-3900 gitlab: DoS when an invalid 'start_sha' value on merge requests page
Product: [Other] Security Response Reporter: Borja Tarraso <btarraso>
Component: vulnerabilityAssignee: Nobody <nobody>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: gitlab 16.1.3, gitlab 16.2.2 Doc Type: If docs needed, set a value
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Clone Of: Environment:
Last Closed: 2023-08-02 19:06:42 UTC Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2228488    

Description Borja Tarraso 2023-08-02 14:18:38 UTC
An issue has been discovered in GitLab CE/EE affecting all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. An invalid 'start_sha' value on merge requests page may lead to Denial of Service as Changes tab would not load.