REDHAT-BUG-1646477

First published: Mon Nov 05 2018(Updated: )

A flaw was found in elfutils through v0.174. An Invalid Memory Address Dereference exists in the function elf_end in libelf. Although eu-size is intended to support ar files inside ar files, handle_ar in size.c closes the outer ar file before handling all inner entries. The vulnerability allows attackers to cause a denial of service (application crash) with a crafted ELF file. References: <a href="https://sourceware.org/bugzilla/show_bug.cgi?id=23787">https://sourceware.org/bugzilla/show_bug.cgi?id=23787</a> <a href="https://sourceware.org/ml/elfutils-devel/2018-q4/msg00057.html">https://sourceware.org/ml/elfutils-devel/2018-q4/msg00057.html</a> Upstream Patch: <a href="https://sourceware.org/git/?p=elfutils.git;a=commit;h=22d2d082d57a7470fadc0eae67179553f4919209">https://sourceware.org/git/?p=elfutils.git;a=commit;h=22d2d082d57a7470fadc0eae67179553f4919209</a>

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