CVE-2020-35538

A crafted input file could cause a null pointer dereference in jcopy_sample_rows() when processed by libjpeg-turbo.

Published: 2022-08-31 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-35538 is rated Low Risk (22.7/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.02%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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

Exploit prediction scoring system (EPSS) score for CVE-2020-35538

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 2025-03-17 0.05% 0.02% -0.03%
2 2023-10-03 0.04% 0.05% +0.01%
3 2023-03-07 — 0.04% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-35538

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/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]

Weakness enumeration for CVE-2020-35538

OS Trackers for CVE-2020-35538

vendor priority summary link
alpine medium CVE-2020-35538: 1 source package rows (libjpeg-turbo); 42 state rows across 8 repos (3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, 3.23-main, edge-main); fixed 42, open 0. https://security.alpinelinux.org/vuln/CVE-2020-35538
debian not yet assigned CVE-2020-35538 not yet assigned priority: Debian including 1 source packages (libjpeg-turbo), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2020-35538
redhat low — https://access.redhat.com/security/cve/CVE-2020-35538
suse medium — https://www.suse.com/security/cve/CVE-2020-35538/
ubuntu medium CVE-2020-35538 medium priority: Ubuntu including 1 source packages (libjpeg-turbo), 8 status rows across 8 suites (bionic, focal, jammy, kinetic, lunar, trusty, upstream, xenial): not-affected 5, released 2, needs-triage 1. https://ubuntu.com/security/CVE-2020-35538

Affected software / configurations for CVE-2020-35538

Vendor Product Version Raw CPE
libjpeg-turbo libjpeg-turbo 2.0.5 cpe:2.3:a:libjpeg-turbo:libjpeg-turbo:2.0.5:*:*:*:*:*:*:*

References for CVE-2020-35538

cvelogic Threat Intelligence