5.5

CVE-2021-27815: fedoraproject fedora NULL Pointer Dereference

CVSS: 5.5v3.1MediumModified
AliasesMGASA-2021-0252UBUNTU-CVE-2021-27815DEBIAN-CVE-2021-27815
Published 14-04-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-27815 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in fedoraproject fedora. EPSS estimates a 1.27% chance of exploitation in the next 30 days, higher than 69.3% 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
1.27%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 14-04-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

NULL Pointer Deference in the exif command line tool, when printing out XML formatted EXIF data, in exif v0.6.22 and earlier allows attackers to cause a Denial of Service (DoS) by uploading a malicious JPEG file, causing the application to crash.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.27%

Chance of exploitation in the next 30 days

Percentile

69%

Versus all other CVEs

30-day change

0.00 pp

From 1.27% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.27%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Exif

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Mageia2 products
  • exif< 0.6.22-1.1.mga7
  • exif< 0.6.22-1.1.mga8
Debian1 product
  • exif< 0.6.22-3
Fedoraproject1 product
Libexif_project1 product
Ubuntu1 product
  • exifAll versions (No fix recorded)

5 vendors · 6 products

References

13 links
Show all 13 references