Executive Summary

Title libexif vulnerabilities
Name USN-4358-1 First vendor Publication 2020-05-13
Vendor Ubuntu Last vendor Modification 2020-05-13
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 7.8 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS - Ubuntu 19.10 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 ESM - Ubuntu 12.04 ESM


Several security issues were fixed in libexif.

Software Description: - libexif: library to parse EXIF files


It was discovered that libexif incorrectly handled certain tags. An attacker could possibly use this issue to cause a denial of service. (CVE-2018-20030)

It was discovered that libexif incorrectly handled certain inputs. An attacker could possibly use this issue to cause a crash. (CVE-2020-12767)

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 20.04 LTS:
libexif12 0.6.21-6ubuntu0.1

Ubuntu 19.10:
libexif12 0.6.21-5.1ubuntu0.2

Ubuntu 18.04 LTS:
libexif12 0.6.21-4ubuntu0.2

Ubuntu 16.04 LTS:
libexif12 0.6.21-2ubuntu0.2

Ubuntu 14.04 ESM:
libexif12 0.6.21-1ubuntu1+esm2

Ubuntu 12.04 ESM:
libexif12 0.6.20-2ubuntu0.3

After a standard system update you need to restart your session to effect the necessary changes.

CVE-2018-20030, CVE-2020-12767

Package Information:

Original Source

Url : http://www.ubuntu.com/usn/USN-4358-1

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')
50 % CWE-369 Divide By Zero

CPE : Common Platform Enumeration

Application 1
Os 1

Alert History

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Date Informations
2020-05-13 21:18:22
  • First insertion