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CVE-2021-29390

22
FAUCET Score

CVE-2021-29390 describes a heap-based buffer over-read vulnerability in libjpeg-turbo version 2.0.90, specifically within the decompress_smooth_data function in jdcoefct.c, affecting various Fedora and libjpeg-turbo distributions. Rated 7.1 HIGH, this vulnerability can be triggered remotely with low attack complexity and user interaction, potentially leading to a high impact on availability and a low impact on confidentiality. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.0.90CPE matchmatch criteria
cpe:2.3:a:libjpeg-turbo:libjpeg-turbo:2.0.90:*:*:*:*:*:*:*
37CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
38CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
39CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.1HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.71%
Probability of exploitation in next 30 days
EPSS Percentile
49.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0072 is in the 52nd percentile among its peer group of 14,855 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: libjpeg-turbo-0:2.0.90-7.el9
View patch

Vendor Advisories (1)

redhatCVE-2021-29390Moderate

libjpeg-turbo: heap-buffer-overflow vulnerability in decompress_smooth_data in jdcoefct.c

Aug 22, 2023

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingPermissions Required
github.com / libjpeg-turbo/libjpeg-turbo/blob/4e52b66f342a803d3b8099b79607e3158d3a241c/jdcoefct.c
Issue Tracking
github.com / libjpeg-turbo/libjpeg-turbo/commits/main/jdcoefct.c
Patch
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/27NR3KG553CG6LGPMP6SHWEVHTYPL6RC
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/6T655QF7CQ3DYAMPFV7IECQYGDEUIVVT
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/KUQ7CTX3W372X3UY56VVNAHCH6H2F4X3