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GoogleOSV:BIT-LUA-2020-15945

HistoryMar 06, 2024 - 10:57 a.m.

BIT-lua-2020-15945

2024-03-0610:57:19

Google

osv.dev

lua

segmentation fault

software bug

control flow

2.1 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:N/I:N/A:P

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

9.3 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

13.0%

JSON

Lua through 5.4.0 has a segmentation fault in changedline in ldebug.c (e.g., when called by luaG_traceexec) because it incorrectly expects that an oldpc value is always updated upon a return of the flow of control to a function.

CPENameOperatorVersion
luage5.3.1
lualt5.4.0

CPE	Name	Operator	Version
	lua	ge	5.3.1
	lua	lt	5.4.0

References

lua-users.org/lists/lua-l/2020-07/msg00123.html

github.com/lua/lua/commit/a2195644d89812e5b157ce7bac35543e06db05e3

2.1 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:N/I:N/A:P

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

9.3 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

13.0%

JSON

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