slides - PDOS - MIT

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ClamAV signed division vulnerabilityCloudBytecodesignature%a"="load"i64*"inttoptr"i64"0"to"i64*%b"="load"i64*"inttoptr"i64"8"to"i64*%r"="sdiv"i64"%a,"%b...suspicioussuspiciousSuspicious fileslocalfilesfile10000000"0000000011111111"11111111..."...
ClamAV signed division vulnerabilityCloudBytecodesignature%a"="load"i64*"inttoptr"i64"0"to"i64*%b"="load"i64*"inttoptr"i64"8"to"i64*%r"="sdiv"i64"%a,"%b...suspicioussuspiciousSuspicious fileslocalfilesfile10000000"0000000011111111"11111111..."...switch"(opcode)"{ Interpreter code....case"OP_SDIV:{""""int64_t"a"="BINOPS(0);"//"dividend""""int64_t"b"="BINOPS(1);"//"divisor""""if"(b"=="0"||"(a"=="P1"&&"b"=="INT64_MIN))""""""""return"CL_EBYTECODE;""""valueP>v"="a"/"b;}}
Page 1 and 2:
Security Bugs inEmbedded Interprete
Page 3 and 4:
Embedded interpretersHost systemByt
Page 5 and 6:
Embedded interpretersHost systemByt
Page 7 and 8: Prevalence of embedded interpreters
Page 15 and 16: Our contributions• Studies of 10
Page 17 and 18: A packet filtering example• Monit
Page 19 and 20: A packet filtering example• Monit
Page 21 and 22: A packet filtering example• Straw
Page 23 and 24: A packet filtering example• Straw
Page 25 and 26: Solution: Berkeley Packet Filter (B
Page 39 and 40: Security of embedded interpreters
Page 45 and 46: INET DIAG infinite loop vulnerabili
Page 51: INET DIAG infinite loop vulnerabili
Page 56 and 57: ClamAV signed division vulnerabilit
Page 64 and 65: FreeType arbitrary code executionJa
Page 66 and 67: FreeType arbitrary code executionpu
Page 74 and 75: Security guidelines
Page 76 and 77: Security guidelines• A better sol
Page 78 and 79: Pitfall 1: complex feature sets•
Page 80 and 81: Pitfall 1: complex feature sets•
Page 82 and 83: Pitfall 2: resource consumption•
Page 84 and 85: Pitfall 3: calls to the host system
Page 86 and 87: Research Opportunities
Page 88 and 89: Research Opportunities• Testing e
Page 90 and 91: Research Opportunities• Testing e
Page 92 and 93: References• BPF: S. McCanne and V
Page 94: Q & ASecurity Bugs inEmbedded Inter
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