Vulnerability Description
Divide-by-zero vulnerabilities in the function arlib_add_symbols() in arlib.c in elfutils 0.174 allow remote attackers to cause a denial of service (application crash) with a crafted ELF file, as demonstrated by eu-ranlib, because a zero sh_entsize is mishandled.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Elfutils Project | Elfutils | 0.174 |
| Debian | Debian Linux | 8.0 |
| Redhat | Enterprise Linux Desktop | 7.0 |
| Redhat | Enterprise Linux Server | 7.0 |
| Redhat | Enterprise Linux Workstation | 7.0 |
| Opensuse | Leap | 15.0 |
| Canonical | Ubuntu Linux | 16.04 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00052.htmlMailing ListThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2197Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/02/msg00036.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/10/msg00030.htmlMailing ListThird Party Advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=23786ExploitIssue TrackingThird Party Advisory
- https://sourceware.org/ml/elfutils-devel/2018-q4/msg00055.htmlMailing ListPatchThird Party Advisory
- https://usn.ubuntu.com/4012-1/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00052.htmlMailing ListThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2197Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/02/msg00036.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/10/msg00030.htmlMailing ListThird Party Advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=23786ExploitIssue TrackingThird Party Advisory
- https://sourceware.org/ml/elfutils-devel/2018-q4/msg00055.htmlMailing ListPatchThird Party Advisory
- https://usn.ubuntu.com/4012-1/Third Party Advisory
FAQ
What is CVE-2018-18521?
CVE-2018-18521 is a vulnerability with a CVSS score of 5.5 (MEDIUM). Divide-by-zero vulnerabilities in the function arlib_add_symbols() in arlib.c in elfutils 0.174 allow remote attackers to cause a denial of service (application crash) with a crafted ELF file, as demo...
How severe is CVE-2018-18521?
CVE-2018-18521 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-18521?
Check the references section above for vendor advisories and patch information. Affected products include: Elfutils Project Elfutils, Debian Debian Linux, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation.