Packages
- libyaml-perl - Perl interface to libyaml, a YAML implementation
Details
Dominique Dumont discovered that YAML-LibYAML did not correctly handle
certain reflection operations. If a user or system were tricked into
opening a specially crafted file, an attacker could possibly use this issue
to delete files. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04
LTS. (CVE-2017-20285)
It was discovered that YAML-LibYAML did not correctly handle parsing
certain documents. If a user or automated system were tricked into opening
a specially crafted file, an attacker could possibly use this issue to
execute arbitrary code. This issue only affected Ubuntu 16.04 LTS and
Ubuntu 18.04 LTS. (CVE-2019-25777)
It was discovered that YAML-LibYAML contained a regular expression
susceptible to catastrophic backtracking. If a user or automated system
were tricked into opening a specially crafted file, an attacker could
possibly use...
Dominique Dumont discovered that YAML-LibYAML did not correctly handle
certain reflection operations. If a user or system were tricked into
opening a specially crafted file, an attacker could possibly use this issue
to delete files. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04
LTS. (CVE-2017-20285)
It was discovered that YAML-LibYAML did not correctly handle parsing
certain documents. If a user or automated system were tricked into opening
a specially crafted file, an attacker could possibly use this issue to
execute arbitrary code. This issue only affected Ubuntu 16.04 LTS and
Ubuntu 18.04 LTS. (CVE-2019-25777)
It was discovered that YAML-LibYAML contained a regular expression
susceptible to catastrophic backtracking. If a user or automated system
were tricked into opening a specially crafted file, an attacker could
possibly use this issue to cause a denial of service. (CVE-2026-63676)
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 | ||
|---|---|---|---|
| 26.04 LTS resolute | libyaml-perl – 1.31-1ubuntu0.26.04.1~esm1 | ||
| 24.04 LTS noble | libyaml-perl – 1.31-1ubuntu0.24.04.1 | ||
| 22.04 LTS jammy | libyaml-perl – 1.30-1ubuntu0.22.04.1 | ||
| 20.04 LTS focal | libyaml-perl – 1.30-1ubuntu0.20.04.1~esm1 | ||
| 18.04 LTS bionic | libyaml-perl – 1.24-1ubuntu0.1~esm1 | ||
| 16.04 LTS xenial | libyaml-perl – 1.15-1ubuntu0.1~esm1 | ||
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