CVE-2019-6706

2019-01-2300:00:00

ubuntu.com

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.033 Low

EPSS

Percentile

91.2%

JSON

Lua 5.3.5 has a use-after-free in lua_upvaluejoin in lapi.c. For example, a
crash outcome might be achieved by an attacker who is able to trigger a
debug.upvaluejoin call in which the arguments have certain relationships.

Bugs

<https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=920321>

Notes

Author	Note
mdeslaur	as of 2019-02-28, proposed fix not committed per debian, 5.0, 5.1 and 5.2 aren’t affected

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlua5.3< 5.3.3-1ubuntu0.18.04.1UNKNOWN
ubuntu18.10noarchlua5.3< 5.3.3-1ubuntu0.18.10.1UNKNOWN
ubuntu16.04noarchlua5.3< 5.3.1-1ubuntu2.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	lua5.3	< 5.3.3-1ubuntu0.18.04.1	UNKNOWN
ubuntu	18.10	noarch	lua5.3	< 5.3.3-1ubuntu0.18.10.1	UNKNOWN
ubuntu	16.04	noarch	lua5.3	< 5.3.1-1ubuntu2.1	UNKNOWN