| Name | CVE-2018-18520 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-1689-1, DLA-2802-1, ELA-85-1 |
| Debian Bugs | 911414 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| elfutils (PTS) | jessie, jessie (lts) | 0.159-4.2+deb8u2 | fixed |
| stretch (security) | 0.168-1+deb9u1 | fixed | |
| stretch (lts), stretch | 0.168-1+deb9u2 | fixed | |
| buster (security), buster, buster (lts) | 0.176-1.1+deb10u1 | fixed | |
| bullseye | 0.183-1 | fixed | |
| bookworm | 0.188-2.1 | fixed | |
| sid, trixie | 0.192-4 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| elfutils | source | wheezy | 0.152-1+wheezy2 | ELA-85-1 | ||
| elfutils | source | jessie | 0.159-4.2+deb8u1 | DLA-1689-1 | ||
| elfutils | source | stretch | 0.168-1+deb9u1 | DLA-2802-1 | ||
| elfutils | source | (unstable) | 0.175-1 | low | 911414 |
https://sourceware.org/bugzilla/show_bug.cgi?id=23787
https://sourceware.org/ml/elfutils-devel/2018-q4/msg00057.html
https://sourceware.org/git/?p=elfutils.git;a=commit;h=22d2d082d57a7470fadc0eae67179553f4919209
[wheezy] - elfutils <no-dsa> (Minor issue)