Opened 6 months ago

Closed 6 months ago

#1438 closed Bug / Defect (duplicate)

dhcp.c:154:36: runtime error: unsigned integer overflow

Reported by: swirsz Owned by:
Priority: minor Milestone: alpha 2.4
Component: Generic / unclassified Version: OpenVPN git master branch (Community Ed)
Severity: Not set (select this one, unless your'e a OpenVPN developer) Keywords: integer overflow
Cc:

Description

Crash discovered when fuzzing: ./fuzz_dhcp crash-ef4.txt

dhcp.c:154:36: runtime error: unsigned integer overflow: 22 - 268 cannot be represented in type 'unsigned long'
SUMMARY: UndefinedBehaviorSanitizer?: undefined-behavior dhcp.c:154:36 in
Executed crash-ef4.txt in 0 ms

UBSan compiled from Github repository: November 14, 2021

Change History (1)

comment:1 Changed 6 months ago by tct

Resolution: duplicate
Status: newclosed

Closing this as duplicate of #1439

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