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GoogleOSV:BIT-LUA-2020-15888

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

BIT-lua-2020-15888

2024-03-0610:57:40

Google

osv.dev

lua

buffer overflow

heap-based buffer

heap-based buffer over-read

use-after-free

security vulnerability

software issue

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.4

Confidence

High

EPSS

0.003

Percentile

71.0%

JSON

Lua through 5.4.0 mishandles the interaction between stack resizes and garbage collection, leading to a heap-based buffer overflow, heap-based buffer over-read, or use-after-free.

References

lua-users.org/lists/lua-l/2020-07/msg00053.html

lua-users.org/lists/lua-l/2020-07/msg00054.html

lua-users.org/lists/lua-l/2020-07/msg00071.html

lua-users.org/lists/lua-l/2020-07/msg00079.html

github.com/lua/lua/commit/6298903e35217ab69c279056f925fb72900ce0b7

github.com/lua/lua/commit/eb41999461b6f428186c55abd95f4ce1a76217d5

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.4

Confidence

High

EPSS

0.003

Percentile

71.0%

JSON

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