CVE-2018-18520

CVSS V2 Medium 4.3 CVSS V3 Medium 6.5
Description
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.
Overview
  • CVE ID
  • CVE-2018-18520
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2018-10-19T17:29:00
  • Last Modified Date
  • 2021-11-30T21:59:46
Weakness Enumerations
CWE URL
CWE-119 http://cwe.mitre.org/data/definitions/119.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:elfutils_project:elfutils:*:*:*:*:*:*:*:* 1 OR 0.174
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 6.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
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
https://lists.debian.org/debian-lts-announce/2019/02/msg00036.html Mailing List Third Party Advisory
https://usn.ubuntu.com/4012-1/ Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00052.html Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2197 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/10/msg00030.html Mailing List Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-18520
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18520
History
Created Old Value New Value Data Type Notes
2022-05-10 06:44:05 Added to TrackCVE
2022-12-03 13:40:19 2018-10-19T17:29Z 2018-10-19T17:29:00 CVE Published Date updated
2022-12-03 13:40:19 2021-11-30T21:59:46 CVE Modified Date updated
2022-12-03 13:40:19 Analyzed Vulnerability Status updated