CVE-2019-6706
lua5.3 - security update
7.5
HIGH
CVSS 3.1
EPSS 0.90%
Description
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.
How to fix CVE-2019-6706
To remediate CVE-2019-6706, upgrade the affected package to a fixed version below.
- Alpine/lua5.3—upgrade to 5.3.5-r2 or later
- —upgrade to 5.3.5-r2 or later
- —upgrade to 5.3.3-1.1+deb11u1 or later
- —upgrade to 5.3.3-1.1+deb10u1 or later
Is CVE-2019-6706 being exploited?
Low — EPSS is 0.9%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 5.3.5-r2
- from 0, < 5.3.5-r2
- from 0, < 5.3.3-1.1+deb11u1
- from 0, < 5.3.3-1.1+deb10u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |