Vulnerability Monitor

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CVE-2019-6706

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.

Published

2019-01-23T19:29:00.447

Last Modified

2024-11-21T04:46:59.147

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-416

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	lua	lua	5.3.5	Yes
Operating System	canonical	ubuntu_linux	16.04	Yes
Operating System	canonical	ubuntu_linux	18.04	Yes
Operating System	canonical	ubuntu_linux	18.10	Yes

References

http://lua-users.org/lists/lua-l/2019-01/msg00039.html Broken Link ([email protected])
http://packetstormsecurity.com/files/151335/Lua-5.3.5-Use-After-Free.html Exploit, Third Party Advisory, VDB Entry ([email protected])
https://access.redhat.com/security/cve/cve-2019-6706 Third Party Advisory ([email protected])
https://github.com/Lua-Project/cve-analysis/blob/a43c9ccd00274b31fa2f24c6c8f20ce36655682d/CVE-2019-6706.pdf Exploit, Third Party Advisory ([email protected])
https://github.com/lua/lua/commit/89aee84cbc9224f638f3b7951b306d2ee8ecb71e Patch, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2023/06/msg00031.html ([email protected])
http://lua-users.org/lists/lua-l/2019-01/msg00039.html Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://packetstormsecurity.com/files/151335/Lua-5.3.5-Use-After-Free.html Exploit, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/security/cve/cve-2019-6706 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/Lua-Project/cve-analysis/blob/a43c9ccd00274b31fa2f24c6c8f20ce36655682d/CVE-2019-6706.pdf Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/lua/lua/commit/89aee84cbc9224f638f3b7951b306d2ee8ecb71e Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2023/06/msg00031.html (af854a3a-2127-422b-91ae-364da2661108)