Fedora 29: FEDORA-2018-32c8599fe1 Critical: Elfutils Double-Free Issue

Elfutils is a collection of utilities, including stack (to show

backtraces), nm (for listing symbols from object files), size

(for listing the section sizes of an object or archive file),

strip (for discarding symbols), readelf (to see the raw ELF file

structures), elflint (to check for well-formed ELF files) and

elfcompress (to compress or decompress ELF sections).

Fixes CVE-2018-16062, CVE-2018-16402 and CVE-2018-16403. unstrip: Handle

SHT_GROUP sections. strip: Handle mixed (out of order) allocated/non-allocated

sections. elfcompress: Don't rewrite input file if no section data needs

updating. Try harder to keep same file mode bits (suid) on rewrite. libelf,

libdw and all tools now handle extended shnum and shstrndx correctly.

[ 1 ] Bug #1625050 - CVE-2018-16402 elfutils: Double-free due to double decompression of sections in crafted ELF causes crash

https://bugzilla.redhat.com/show_bug.cgi?id=1625050

[ 2 ] Bug #1625055 - CVE-2018-16403 elfutils: Heap-based buffer over-read in libdw/dwarf_getabbrev.c and libwd/dwarf_hasattr.c causes crash

https://bugzilla.redhat.com/show_bug.cgi?id=1625055

[ 3 ] Bug #1623752 - CVE-2018-16062 elfutils: Heap-based buffer over-read in libdw/dwarf_getaranges.c:dwarf_getaranges() via crafted file

https://bugzilla.redhat.com/show_bug.cgi?id=1623752

su -c 'dnf upgrade --advisory FEDORA-2018-32c8599fe1' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

All packages are signed with the Fedora Project GPG key. More details on the

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https://fedoraproject.org/security/

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