High severity7.5OSV Advisory· Published Jan 23, 2019· Updated Jun 17, 2026
CVE-2019-6706
CVE-2019-6706
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
18cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*+ 2 more
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
- osv-coords12 versionspkg:apk/chainguard/lua5.4pkg:apk/chainguard/lua5.4-devpkg:apk/chainguard/lua5.4-docpkg:apk/chainguard/lua5.4-libspkg:apk/wolfi/lua5.4pkg:apk/wolfi/lua5.4-devpkg:apk/wolfi/lua5.4-docpkg:apk/wolfi/lua5.4-libspkg:rpm/almalinux/luapkg:rpm/almalinux/lua-develpkg:rpm/opensuse/lua53&distro=openSUSE%20Leap%2015.0pkg:rpm/suse/lua53&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015
< 0+ 11 more
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 5.3.4-11.el8
- (no CPE)range: < 5.3.4-11.el8
- (no CPE)range: < 5.3.4-lp150.2.3.1
- (no CPE)range: < 5.3.4-3.3.2
Patches
Vulnerability mechanics
References
6- github.com/lua/lua/commit/89aee84cbc9224f638f3b7951b306d2ee8ecb71envdPatchThird Party Advisory
- packetstormsecurity.com/files/151335/Lua-5.3.5-Use-After-Free.htmlnvdExploitThird Party AdvisoryVDB Entry
- github.com/Lua-Project/cve-analysis/blob/a43c9ccd00274b31fa2f24c6c8f20ce36655682d/CVE-2019-6706.pdfnvdExploitThird Party Advisory
- access.redhat.com/security/cve/cve-2019-6706nvdThird Party Advisory
- lua-users.org/lists/lua-l/2019-01/msg00039.htmlnvdBroken Link
- lists.debian.org/debian-lts-announce/2023/06/msg00031.htmlnvd
News mentions
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