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CVE-2020-15945
Low priorityLua through 5.4.0 has a segmentation fault in changedline in ldebug.c (e.g., when called by luaG_traceexec) because it incorrectly expects that an oldpc value is always updated upon a return of the flow of control to a function.
5 affected packages
lua5.1, lua5.2, lua5.3, lua5.4, lua50
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| lua5.1 | — | Not affected | Not affected | Not affected | Not affected |
| lua5.2 | — | Not affected | Not affected | Not affected | Not affected |
| lua5.3 | — | Not affected | Not affected | Not affected | Not affected |
| lua5.4 | — | Not affected | Not in release | Not in release | Not in release |
| lua50 | — | Not in release | Not affected | Not affected | Not affected |
CVE-2020-15889
Low priorityLua 5.4.0 has a getobjname heap-based buffer over-read because youngcollection in lgc.c uses markold for an insufficient number of list members.
5 affected packages
lua5.1, lua5.2, lua5.3, lua5.4, lua50
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| lua5.1 | — | — | Not affected | Not affected | Not affected |
| lua5.2 | — | — | Not affected | Not affected | Not affected |
| lua5.3 | — | — | Not affected | Not affected | Not affected |
| lua5.4 | — | — | Not in release | Not in release | Not in release |
| lua50 | — | — | Not affected | Not affected | Not affected |
CVE-2020-15888
Low priorityLua through 5.4.0 mishandles the interaction between stack resizes and garbage collection, leading to a heap-based buffer overflow, heap-based buffer over-read, or use-after-free.
5 affected packages
lua5.1, lua5.2, lua5.3, lua5.4, lua50
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| lua5.1 | — | Not affected | Not affected | Not affected | Not affected |
| lua5.2 | — | Not affected | Not affected | Not affected | Not affected |
| lua5.3 | — | Not affected | Not affected | Not affected | Not affected |
| lua5.4 | — | Not affected | Not in release | Not in release | Not in release |
| lua50 | — | Not in release | Not affected | Not affected | Not affected |
CVE-2019-6706
Medium priorityLua 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.
4 affected packages
lua5.1, lua5.2, lua5.3, lua50
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| lua5.1 | — | — | — | Not affected | Not affected |
| lua5.2 | — | — | — | Not affected | Not affected |
| lua5.3 | — | — | — | Fixed | Fixed |
| lua50 | — | — | — | Not affected | Not affected |