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Lua 5.4.0 has a getobjname heap-based buffer over-read because youngcollection in lgc.c uses markold for an insufficient number of list members.

🗓️ 25 Sep 2020 07:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 1 Views

Lua 5.4.0 heap overread in getobjname due to youngcollection using markold with too few list members.

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18 Feb 2026 22:04Current
7High risk
Vulners AI Score7
CVSS 27.5
CVSS 3.19.8
EPSS0.0051
1