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Overview
The *_get_synthetic_symtab functions in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29, do not ensure a unique PLT entry for a symbol, which allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted ELF file, related to elf32-i386.c and elf64-x86-64.c.
References
- Debian Security Tracker
- https://blogs.gentoo.org/ago/2017/09/25/binutils-heap-based-buffer-overflow-in-_bfd_x86_elf_get_synthetic_symtab-elfxx-x86-c/
- https://sourceware.org/bugzilla/show_bug.cgi?id=22170
- https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=56933f9e3e90eebf1018ed7417d6c1184b91db6b
- https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=61e3bf5f83f7e505b6bc51ef65426e5b31e6e360
CVSS Score
7.8
high severity
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Attack VectorLocal
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Attack ComplexityLow
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Privileges RequiredNone
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User InteractionRequired
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ScopeUnchanged
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ConfidentialityHigh
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IntegrityHigh
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AvailabilityHigh
- CVE
- CVE-2017-14729
- CWE
- CWE-119
- Snyk ID
- SNYK-DEBIAN9-BINUTILS-404153
- Disclosed
- 25 Sep, 2017
- Published
- 25 Sep, 2017