Description
LuaJit through 2.1.0-beta3 has an out-of-bounds read because __gc handler frame traversal is mishandled.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | luajit | 2.1.0~beta3+git20210112+dfsg-2 | — |
| Debian 13 | luajit | 2.1.0~beta3+git20210112+dfsg-2 | — |
| Debian 12 | luajit | 2.1.0~beta3+git20210112+dfsg-2 | — |
| Debian 11 | luajit | 2.1.0~beta3+dfsg-5.3+deb11u1 | DLA-4283-1 |
| Debian 9 | luajit | 2.0.4+dfsg-1+deb9u1 | DLA-2296-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | luajit | No fix yet | — |
| Ubuntu 16.04 LTS | luajit | 2.0.4+dfsg-1+deb9u1build0.16.04.1 | USN-4501-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | luajit | No fix yet | — |
| Ubuntu Pro 18.04 LTS | luajit | No fix yet | — |
| Ubuntu Pro 14.04 LTS | luajit | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | SLOF | 20191022-3.git899d9883.module+el8.2.0+5449+efc036dd | RHBA-2020:3172 |
| RHEL 8 | hivex +6 | 1.3.18-20.module+el8.2.0+5588+63a201c3 | RHBA-2020:3172 |
| RHEL 8 | libguestfs-winsupport | 8.2-1.module+el8.2.0+5590+82cd80df | RHBA-2020:3172 |
| RHEL 8 | libiscsi +2 | 1.18.0-8.module+el8.2.0+4793+b09dd2fb | RHBA-2020:3172 |
| RHEL 8 | libnbd +5 | 1.2.2-1.module+el8.2.0+5644+32ac38d4 | RHBA-2020:3172 |
| RHEL 8 | libtpms +1 | 0.7.0-1.20191018gitdc116933b7.module+el8.2.0+4793+b09dd2fb | RHBA-2020:3172 |
| RHEL 8 | libvirt +28 | 6.0.0-25.module+el8.2.1+7154+47ffd890 | RHBA-2020:3172 |
| RHEL 8 | libvirt-dbus | 1.3.0-2.module+el8.2.0+4793+b09dd2fb | RHBA-2020:3172 |
| RHEL 8 | libvirt-python +1 | 6.0.0-1.module+el8.2.0+5453+31b2b136 | RHBA-2020:3172 |
| RHEL 8 | nbdkit +13 | 1.16.2-4.module+el8.2.1+6710+effcb1df | RHBA-2020:3172 |
| RHEL 8 | netcf +2 | 0.2.8-12.module+el8.2.0+4793+b09dd2fb | RHBA-2020:3172 |
| RHEL 8 | perl-Sys-Virt | 6.0.0-1.module+el8.2.0+5488+267def79 | RHBA-2020:3172 |
| RHEL 8 | python-pyvmomi +1 | 6.7.1-7.module+el8.2.0+4793+b09dd2fb | RHBA-2020:3172 |
| RHEL 8 | qemu-img +10 | 15:4.2.0-29.module+el8.2.1+7297+a825794d | RHBA-2020:3172 |
| RHEL 8 | seabios +2 | 1.13.0-2.module+el8.2.1+7284+aa32a2c4 | RHBA-2020:3172 |
| RHEL 8 | sgabios +1 | 1:0.20170427git-3.module+el8.2.0+4793+b09dd2fb | RHBA-2020:3172 |
| RHEL 8 | supermin +1 | 5.1.19-10.module+el8.2.0+4793+b09dd2fb | RHBA-2020:3172 |
| RHEL 8 | swtpm +3 | 0.2.0-2.20200127gitff5a83b.module+el8.2.0+5579+d71178e0 | RHBA-2020:3172 |
| RHEL 8 | virglrenderer +2 | 0.8.2-1.module+el8.2.0+5777+d9c2af8c | RHBA-2020:3172 |
| RHEL 8 | virt-dib +25 | 1:1.40.2-24.module+el8.2.1+7154+47ffd890 | RHBA-2020:3172 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.13 | luajit | 2.2.0-r3 | — |
Advisories 4
- RHBA-2020:3172 Red Hat Bug Fix Advisory: Advanced Virtualization bug fix and enhancement update Red Hat Security Advisories (RHSA) · Aug 6, 2026
- USN-4501-1 luajit vulnerability Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-4283-1 luajit - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2296-1 luajit - security update Debian Security (DSA / DLA) · Mar 9, 2026