CVE-2018-18520: Buffer Overflow
First published: Fri Oct 19 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>
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Elfutils Project Elfutils | <=0.174 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =18.10 | |
| openSUSE Leap | =15.0 | |
| openSUSE Leap | =15.1 | |
| Redhat Enterprise Linux Desktop | =7.0 | |
| Redhat Enterprise Linux Server | =7.0 | |
| Redhat Enterprise Linux Workstation | =7.0 | |
| debian/elfutils | 0.183-1 0.188-2.1 0.192-4 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00052.html
- https://access.redhat.com/errata/RHSA-2019:2197
- https://lists.debian.org/debian-lts-announce/2019/02/msg00036.html
- https://lists.debian.org/debian-lts-announce/2021/10/msg00030.html
- https://sourceware.org/bugzilla/show_bug.cgi?id=23787
- https://sourceware.org/ml/elfutils-devel/2018-q4/msg00057.html
- https://usn.ubuntu.com/4012-1/
- https://launchpad.net/bugs/cve/CVE-2018-18520
- https://sourceware.org/git/?p=elfutils.git;a=commit;h=22d2d082d57a7470fadc0eae67179553f4919209
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1646478
- https://access.redhat.com/support/policy/updates/errata/
- https://access.redhat.com/security/cve/cve-2018-18520
- https://bugzilla.redhat.com/show_bug.cgi?id=1646477
- https://security-tracker.debian.org/tracker/CVE-2018-18520
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18520
- https://nvd.nist.gov/vuln/detail/CVE-2018-18520
- https://ubuntu.com/security/CVE-2018-18520
- collector/nvd-index
- agent/type
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- collector/mitre-cve
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- vendor/elfutils project
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- version/elfutils project elfutils/0.174
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- vendor/redhat
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