CVE-2019-6706
Lua 5.3.5 - 'debug.upvaluejoin' Use After Free
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
3
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
Lua 5.3.5 tiene un uso de memoria previamente liberada en lua_upvaluejoin en lapi.c. Por ejemplo, un atacante podría lograr un cierre inesperado al desencadenar una llamada debug.upvaluejoin en la que los argumentos tienen ciertas relaciones.
Lua version 5.3.5 suffers from a use-after-free vulnerability.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2019-01-23 CVE Reserved
- 2019-01-23 CVE Published
- 2019-01-25 First Exploit
- 2024-06-15 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-416: Use After Free
CAPEC
References (9)
| URL | Tag | Source |
|---|---|---|
| http://lua-users.org/lists/lua-l/2019-01/msg00039.html | Broken Link | |
| https://access.redhat.com/security/cve/cve-2019-6706 | Third Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2023/06/msg00031.html | Mailing List |
|
| URL | Date | SRC |
|---|---|---|
| https://github.com/lua/lua/commit/89aee84cbc9224f638f3b7951b306d2ee8ecb71e | 2023-06-23 |
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2019-6706 | 2019-11-05 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1670019 | 2019-11-05 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Lua Search vendor "Lua" | Lua Search vendor "Lua" for product "Lua" | 5.3.5 Search vendor "Lua" for product "Lua" and version "5.3.5" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 18.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.10" | - |
Affected
| ||||||