CVE-2018-20002

Exp

The _bfd_generic_read_minisymbols function in syms.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31, has a memory leak via a crafted ELF file, leading to a denial of service (memory consumption), as demonstrated by nm.

Published: 2018-12-09 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-20002 is rated High Exploit Risk (65.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.82%). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.50% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2018-20002

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2018-20002

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.32% 1.82% +1.50%
2 2025-11-21 0.20% 0.32% +0.11%
3 2025-11-18 — 0.20% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-20002

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.0 MEDIUM
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2018-20002

OS Trackers for CVE-2018-20002

vendor priority summary link
alpine medium CVE-2018-20002: 1 source package rows (binutils); 10 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 10, open 0. https://security.alpinelinux.org/vuln/CVE-2018-20002
debian unimportant CVE-2018-20002 unimportant priority: Debian including 1 source packages (binutils), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2018-20002
gentoo normal CVE-2018-20002: 1 GLSA(s) (201908-01), 1 atom(s) (sys-devel/binutils); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2018-20002
redhat low — https://access.redhat.com/security/cve/CVE-2018-20002
suse low — https://www.suse.com/security/cve/CVE-2018-20002/
ubuntu low CVE-2018-20002 low priority: Ubuntu including 1 source packages (binutils), 19 status rows across 19 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 14, released 2, ignored 1, needed 1, needs-triage 1. https://ubuntu.com/security/CVE-2018-20002

Affected software / configurations for CVE-2018-20002

Vendor Product Version Raw CPE
gnu binutils 2.31 cpe:2.3:a:gnu:binutils:2.31:*:*:*:*:*:*:*
netapp vasa_provider >= 7.2 cpe:2.3:a:netapp:vasa_provider:*:*:*:*:*:*:*:*
f5 traffix_signaling_delivery_controller >= 5.0.0, <= 5.1.0 cpe:2.3:a:f5:traffix_signaling_delivery_controller:*:*:*:*:*:*:*:*
f5 traffix_signaling_delivery_controller 4.4.0 cpe:2.3:a:f5:traffix_signaling_delivery_controller:4.4.0:*:*:*:*:*:*:*

References for CVE-2018-20002

cvelogic Threat Intelligence