CVE-2019-6706
Published: 23 January 2019
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.
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 |
Priority
Status
Package | Release | Status |
---|---|---|
lua5.1 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(code not present)
|
cosmic |
Not vulnerable
(code not present)
|
|
trusty |
Not vulnerable
(code not present)
|
|
upstream |
Needs triage
|
|
xenial |
Not vulnerable
(code not present)
|
|
lua5.2 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(code not present)
|
cosmic |
Not vulnerable
(code not present)
|
|
trusty |
Not vulnerable
(code not present)
|
|
upstream |
Needs triage
|
|
xenial |
Not vulnerable
(code not present)
|
|
lua5.3 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.3.3-1ubuntu0.18.04.1)
|
cosmic |
Released
(5.3.3-1ubuntu0.18.10.1)
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Released
(5.3.1-1ubuntu2.1)
|
|
lua50 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(code not present)
|
cosmic |
Not vulnerable
(code not present)
|
|
trusty |
Does not exist
(trusty was not-affected [code not present])
|
|
upstream |
Needs triage
|
|
xenial |
Not vulnerable
(code not present)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References
- http://lua.2524044.n2.nabble.com/Bug-Report-Use-after-free-in-debug-upvaluejoin-tc7685506.html
- http://lua.2524044.n2.nabble.com/CVE-2019-6706-use-after-free-in-lua-upvaluejoin-function-tc7685575.html
- https://ubuntu.com/security/notices/USN-3941-1
- https://www.cve.org/CVERecord?id=CVE-2019-6706
- NVD
- Launchpad
- Debian