CVE-2018-8975

Exp

The pm_mallocarray2 function in lib/util/mallocvar.c in Netpbm through 10.81.03 allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted image file, as demonstrated by pbmmask.

Published: 2018-03-25 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-8975 is rated High Exploit Risk (64.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.72%). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.26% 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-2018-8975

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

Exploit prediction scoring system (EPSS) score for CVE-2018-8975

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 0.45% 1.72% +1.26%
2 2025-11-21 0.24% 0.45% +0.21%
3 2025-11-18 — 0.24% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-8975

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-2018-8975

OS Trackers for CVE-2018-8975

vendor priority summary link
alpine medium CVE-2018-8975: 1 source package rows (netpbm); 1 state rows across 1 repos (3.17-community); fixed 0, open 1. https://security.alpinelinux.org/vuln/CVE-2018-8975
debian unimportant CVE-2018-8975 unimportant priority: Debian including 1 source packages (netpbm-free), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2018-8975
redhat low — https://access.redhat.com/security/cve/CVE-2018-8975
suse low CVE-2018-8975 severity low: SUSE including 28 source package names (libnetpbm-devel, libnetpbm-devel-10.66.3-8.7.2, …), 90 product×package rows across 47 product lines (SUSE Linux Enterprise Desktop 12 SP3, SUSE Linux Enterprise Desktop 12 SP4, … (47 product lines)): Fixed 81, Known Not Affected 9. https://www.suse.com/security/cve/CVE-2018-8975/
ubuntu medium CVE-2018-8975 medium priority: Ubuntu including 1 source packages (netpbm-free), 4 status rows across 4 suites (artful, trusty, upstream, xenial): not-affected 2, DNE 1, needs-triage 1. https://ubuntu.com/security/CVE-2018-8975

Affected software / configurations for CVE-2018-8975

Vendor Product Version Raw CPE
netpbm_project netpbm <= 10.81.03 cpe:2.3:a:netpbm_project:netpbm:*:*:*:*:*:*:*:*

References for CVE-2018-8975

cvelogic Threat Intelligence