6.5

CVE-2021-38115: libgd Out-of-bounds Read

Modified
AliasesALPINE-CVE-2021-38115UBUNTU-CVE-2021-38115DEBIAN-CVE-2021-38115
Published 04-08-2021Last modified 04-08-2024

Vulnerability summary

CVE-2021-38115 is a medium (CVSS 6.5) Out-of-bounds Read vulnerability in libgd. EPSS estimates a 1.87% chance of exploitation in the next 30 days, higher than 79.3% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Routine

Not severe (CVSS 6.5, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
1.87%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 4 · Related 1
DLA-3781-1DLA-4411-1MGASA-2021-0433USN-5068-1

Timeline

  1. 04-08-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

read_header_tga in gd_tga.c in the GD Graphics Library (aka LibGD) through 2.3.2 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted TGA file.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

1.87%

Chance of exploitation in the next 30 days

Percentile

79%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.87% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • githubUnverified

    Libgd

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Alpine1 product
  • gd< 2.2.5-r4 | < 2.3.0-r1
Debian1 product
  • libgd2< 2.3.3-1
Libgd1 product
Ubuntu1 product
  • libgd2< 2.1.0-3ubuntu0.11+esm2 | < 2.1.1-4ubuntu0.16.04.12+esm1 | < 2.2.5-4ubuntu0.5 | < 2.2.5-5.2ubuntu2.1 | < 2.3.0-2ubuntu1

4 vendors · 4 products

References

10 links