CVE-2020-1740

NameCVE-2020-1740
DescriptionA flaw was found in Ansible Engine when using Ansible Vault for editing encrypted files. When a user executes "ansible-vault edit", another user on the same computer can read the old and new secret, as it is created in a temporary file with mkstemp and the returned file descriptor is closed and the method write_data is called to write the existing secret in the file. This method will delete the file before recreating it insecurely. All versions in 2.7.x, 2.8.x and 2.9.x branches are believed to be vulnerable.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-2202-1
NVD severitylow

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ansible (PTS)stretch (security), stretch2.2.1.0-2+deb9u1vulnerable
buster2.7.7+dfsg-1vulnerable
bullseye, sid2.9.13+dfsg-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ansiblesourcejessie1.7.2+dfsg-2+deb8u3DLA-2202-1
ansiblesource(unstable)2.9.7+dfsg-1

Notes

https://bugzilla.redhat.com/show_bug.cgi?id=1802193
https://github.com/ansible/ansible/issues/67798
https://github.com/ansible/ansible/pull/68644

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