1. Ubuntu Security Notices
  2. USN-6584-1

USN-6584-1: Libspf2 vulnerabilities

Publication date

15 January 2024

Overview

Several security issues were fixed in Libspf2.

Releases

Packages

  • libspf2 - Sender Policy Framework for SMTP authorization

Details

Philipp Jeitner and Haya Shulman discovered that Libspf2 incorrectly handled
certain inputs. If a user or an automated system were tricked into opening a
specially crafted input file, a remote attacker could possibly use this issue
to cause a denial of service or execute arbitrary code. (CVE-2021-20314)

It was discovered that Libspf2 incorrectly handled certain inputs. If a user or
an automated system were tricked into opening a specially crafted input file, a
remote attacker could possibly use this issue to cause a denial of service or
execute arbitrary code. This issue only affected Ubuntu 18.04 LTS and
Ubuntu 20.04 LTS. (CVE-2021-33912, CVE-2021-33913)

Philipp Jeitner and Haya Shulman discovered that Libspf2 incorrectly handled
certain inputs. If a user or an automated system were tricked into opening a
specially crafted input file, a remote attacker could possibly use this issue
to cause a denial of service or execute arbitrary code. (CVE-2021-20314)

It was discovered that Libspf2 incorrectly handled certain inputs. If a user or
an automated system were tricked into opening a specially crafted input file, a
remote attacker could possibly use this issue to cause a denial of service or
execute arbitrary code. This issue only affected Ubuntu 18.04 LTS and
Ubuntu 20.04 LTS. (CVE-2021-33912, CVE-2021-33913)

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
20.04 focal libmail-spf-xs-perl –  1.2.10-7+deb9u2build0.20.04.1
libspf2-2 –  1.2.10-7+deb9u2build0.20.04.1
libspf2-dev –  1.2.10-7+deb9u2build0.20.04.1
spfquery –  1.2.10-7+deb9u2build0.20.04.1
18.04 bionic libmail-spf-xs-perl –  1.2.10-7ubuntu0.18.04.1~esm1  
libspf2-2 –  1.2.10-7ubuntu0.18.04.1~esm1  
libspf2-dev –  1.2.10-7ubuntu0.18.04.1~esm1  
spfquery –  1.2.10-7ubuntu0.18.04.1~esm1  
16.04 xenial libmail-spf-xs-perl –  1.2.10-6ubuntu0.1~esm1  
libspf2-2 –  1.2.10-6ubuntu0.1~esm1  
libspf2-dev –  1.2.10-6ubuntu0.1~esm1  
spfquery –  1.2.10-6ubuntu0.1~esm1  

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References

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