Vulnerability Details : CVE-2018-18520
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.
Vulnerability category: OverflowDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2018-18520
Probability of exploitation activity in the next 30 days: 0.28%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 64 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2018-18520
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
---|---|---|---|---|---|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
[email protected] |
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
[email protected] |
CWE ids for CVE-2018-18520
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The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.Assigned by: [email protected] (Primary)
References for CVE-2018-18520
-
https://access.redhat.com/errata/RHSA-2019:2197
Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00052.html
Mailing List;Third Party Advisory
-
https://sourceware.org/ml/elfutils-devel/2018-q4/msg00057.html
Mailing List;Patch;Third Party Advisory
-
https://sourceware.org/bugzilla/show_bug.cgi?id=23787
Exploit;Issue Tracking;Third Party Advisory
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https://usn.ubuntu.com/4012-1/
Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2019/02/msg00036.html
Mailing List;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2021/10/msg00030.html
Mailing List;Third Party Advisory
Products affected by CVE-2018-18520
- 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:*:*:*:*:*:*:*:*