5.5

CVE-2021-37529: debian debian_linux Double Free

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2021-37529DEBIAN-CVE-2021-37529
Published 12-01-2022Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-37529 is a medium (CVSS 5.5) Double Free vulnerability in debian debian_linux. EPSS estimates a 0.75% chance of exploitation in the next 30 days, higher than 54.3% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.75%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 12-01-2022
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

A double-free vulnerability exists in fig2dev through 3.28a is affected by: via the free_stream function in readpics.c, which could cause a denial of service (context-dependent).

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.75%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

0.00 pp

From 0.75% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.75%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (sourceforge.net)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Debian2 products
Fig2dev_project1 product
Ubuntu1 product
  • fig2dev< 1:3.2.8b-1 | < 1:3.2.9-3build2 | < 1:3.2.9a-3

3 vendors · 4 products

References

4 links