Out-of-Bounds The advisory has been revoked - it doesn't affect any version of package elfutils (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1904-ELFUTILS-649914
- published19 Oct 2018
- disclosed19 Oct 2018
Introduced: 19 Oct 2018
CVE-2018-18520 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:19.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream elfutils package and not the elfutils package as distributed by Ubuntu.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-18520
- https://lists.debian.org/debian-lts-announce/2019/02/msg00036.html
- https://security-tracker.debian.org/tracker/CVE-2018-18520
- https://sourceware.org/bugzilla/show_bug.cgi?id=23787
- https://sourceware.org/ml/elfutils-devel/2018-q4/msg00057.html
- https://access.redhat.com/errata/RHSA-2019:2197
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00052.html
- https://usn.ubuntu.com/4012-1/
- https://lists.debian.org/debian-lts-announce/2021/10/msg00030.html