A flaw was found in elfutils through v0.174. An Invalid Memory Address Dereference exists in the function elfend in libelf. Although eu-size is intended to support ar files inside ar files, handlear 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: https://sourceware.org/bugzilla/showbug.cgi?id=23787 https://sourceware.org/ml/elfutils-devel/2018-q4/msg00057.html

Upstream Patch: https://sourceware.org/git/?p=elfutils.git;a=commit;h=22d2d082d57a7470fadc0eae67179553f4919209

A flaw was found in elfutils 0.174. A Divide-by-zero vulnerabilities in the function arlibaddsymbols() in arlib.c allow remote attackers to cause a denial of service (application crash) with a crafted ELF file, as demonstrated by eu-ranlib, because a zero shentsize is mishandled.

References: https://sourceware.org/bugzilla/showbug.cgi?id=23786 https://sourceware.org/ml/elfutils-devel/2018-q4/msg00055.html

Upstream Patch: https://sourceware.org/git/?p=elfutils.git;a=commit;h=2b16a9be69939822dcafe075413468daac98b327

A flaw was found in elfutils through v0.174. An invalid memory address dereference was discovered in dwflsegmentreportmodule.c in libdwfl. The vulnerability allows attackers to cause a denial of service (application crash) with a crafted ELF file, as demonstrated by considernotes.

References: https://sourceware.org/bugzilla/showbug.cgi?id=23752 https://sourceware.org/ml/elfutils-devel/2018-q4/msg00022.html