lgc.c in Lua 5.4.0 mishandles the interaction between barriers and the sweep phase, leading to a memory access violation involving collectgarbage.
CVSS Score
5.3
EPSS Score
0.005
Published
2020-08-17
Lua through 5.4.0 allows a stack redzone cross in luaO_pushvfstring because a protection mechanism wrongly calls luaD_callnoyield twice in a row.
CVSS Score
7.8
EPSS Score
0.003
Published
2020-08-13
Lua 5.4.0 (fixed in 5.4.1) 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.
CVSS Score
5.5
EPSS Score
0.001
Published
2020-07-24
Lua 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.
CVSS Score
8.8
EPSS Score
0.012
Published
2020-07-21
Lua 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.
CVSS Score
9.8
EPSS Score
0.005
Published
2020-07-21
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.
CVSS Score
7.5
EPSS Score
0.012
Published
2019-01-23
Buffer overflow in the vararg functions in ldo.c in Lua 5.1 through 5.2.x before 5.2.3 allows context-dependent attackers to cause a denial of service (crash) via a small number of arguments to a function with a large number of fixed arguments.
CVSS Score
5.0
EPSS Score
0.222
Published
2014-09-04
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