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GT-3241: Better handling of stripped ELF section headers (fixes #1119).

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This commit is contained in:
Ryan Kurtz
2019-10-17 10:20:47 -04:00
parent ed098ca34f
commit e6358b5939
1 changed files with 6 additions and 0 deletions
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Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/elf/ElfHeader.java
+6
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@@ -159,8 +159,14 @@ public class ElfHeader implements StructConverter, Writeable {
e_ehsize = reader.readNextShort(); e_ehsize = reader.readNextShort();
e_phentsize = reader.readNextShort(); e_phentsize = reader.readNextShort();
e_phnum = reader.readNextShort(); e_phnum = reader.readNextShort();
if (e_phnum < 0) {
e_phnum = 0; // protect against stripped program headers
}
e_shentsize = reader.readNextShort(); e_shentsize = reader.readNextShort();
e_shnum = reader.readNextShort(); e_shnum = reader.readNextShort();
if (e_shnum < 0) {
e_shnum = 0; // protect against stripped section headers (have seen -1)
}
e_shstrndx = reader.readNextShort(); e_shstrndx = reader.readNextShort();
} }
catch (IOException e) { catch (IOException e) {