Vulnerability Details : CVE-2018-18521
Potential exploit
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.
Vulnerability category: Denial of service
Products affected by CVE-2018-18521
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
- cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
- cpe:2.3:a:elfutils_project:elfutils:0.174:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-18521
0.14%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 31 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-18521
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2018-18521
-
The product divides a value by zero.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-18521
-
https://access.redhat.com/errata/RHSA-2019:2197
RHSA-2019:2197 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00052.html
[security-announce] openSUSE-SU-2019:1590-1: moderate: Security update fMailing List;Third Party Advisory
-
https://sourceware.org/bugzilla/show_bug.cgi?id=23786
23786 – Divide-by-zero Problem in function arlib_add_symbols() in arlib.c in elfutils-0.174Exploit;Issue Tracking;Third Party Advisory
-
https://usn.ubuntu.com/4012-1/
USN-4012-1: elfutils vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://sourceware.org/ml/elfutils-devel/2018-q4/msg00055.html
Mark Wielaard - [PATCH] arlib: Check that sh_entsize isn't zero.Mailing List;Patch;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2019/02/msg00036.html
[SECURITY] [DLA 1689-1] elfutils security updateMailing List;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2021/10/msg00030.html
[SECURITY] [DLA 2802-1] elfutils security updateMailing List;Third Party Advisory
Jump to