PublicDateAtUSN: 2018-10-19
Candidate: CVE-2018-18520
PublicDate: 2018-10-19 17:29:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18520
 https://sourceware.org/ml/elfutils-devel/2018-q4/msg00057.html
 https://ubuntu.com/security/notices/USN-4012-1
Description:
 An Invalid Memory Address Dereference exists in the function elf_end in
 libelf in elfutils through v0.174. 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.
Ubuntu-Description:
Notes:
Bugs:
 https://sourceware.org/bugzilla/show_bug.cgi?id=23787
 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=911414
Priority: low
Discovered-by:
Assigned-to: mdeslaur
CVSS:
 nvd: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H [6.5 MEDIUM]
 nvd: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H [6.5 MEDIUM]


Patches_elfutils:
 upstream: https://sourceware.org/git/?p=elfutils.git;a=commit;h=22d2d082d57a7470fadc0eae67179553f4919209
upstream_elfutils: released (0.175-1)
precise/esm_elfutils: ignored (end of ESM support, was needs-triage)
trusty_elfutils: ignored (reached end-of-life)
trusty/esm_elfutils: needs-triage
xenial_elfutils: released (0.165-3ubuntu1.2)
esm-infra/xenial_elfutils: released (0.165-3ubuntu1.2)
bionic_elfutils: released (0.170-0.4ubuntu0.1)
cosmic_elfutils: released (0.170-0.5.0ubuntu1.1)
disco_elfutils: not-affected (0.176-1)
eoan_elfutils: not-affected (0.176-1.1)
focal_elfutils: not-affected (0.176-1.1)
groovy_elfutils: not-affected (0.176-1.1)
hirsute_elfutils: not-affected (0.176-1.1)
impish_elfutils: not-affected (0.176-1.1)
jammy_elfutils: not-affected (0.176-1.1)
devel_elfutils: not-affected (0.176-1.1)