CVE-2017-7481
Ansible before versions 2.3.1.0 and 2.4.0.0 fails to properly mark lookup-plugin results as unsafe.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.78%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Ansible before versions 2.3.1.0 and 2.4.0.0 fails to properly mark lookup-plugin results as unsafe. If an attacker could control the results of lookup() calls, they could inject Unicode strings to be parsed by the jinja2 templating system, resulting in code execution. By default, the jinja2 templating language is now marked as 'unsafe' and is not evaluated.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 4.78% probability · 92th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- redhat/openshift container platform · redhat/openstack · redhat/storage console · redhat/virtualization · redhat/virtualization manager · redhat/gluster storage · redhat/ansible engine · canonical/ubuntu linux · debian/debian linux
- Source
- secalert@redhat.com
EPSS 4.8% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/98492Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1244Vendor Advisory
- https://access.redhat.com/errata/RHSA-2017:1334Vendor Advisory
- https://access.redhat.com/errata/RHSA-2017:1476Vendor Advisory
- https://access.redhat.com/errata/RHSA-2017:1499Vendor Advisory
- https://access.redhat.com/errata/RHSA-2017:1599Vendor Advisory
- https://access.redhat.com/errata/RHSA-2017:2524Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7481Issue Tracking, Patch, Vendor Advisory
- https://github.com/ansible/ansible/commit/ed56f51f185a1ffd7ea57130d260098686fcc7c2Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/01/msg00023.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/4072-1/Third Party Advisory
- http://www.securityfocus.com/bid/98492Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1244Vendor Advisory
- https://access.redhat.com/errata/RHSA-2017:1334Vendor Advisory
- https://access.redhat.com/errata/RHSA-2017:1476Vendor Advisory
- https://access.redhat.com/errata/RHSA-2017:1499Vendor Advisory
- https://access.redhat.com/errata/RHSA-2017:1599Vendor Advisory
- https://access.redhat.com/errata/RHSA-2017:2524Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7481Issue Tracking, Patch, Vendor Advisory
- https://github.com/ansible/ansible/commit/ed56f51f185a1ffd7ea57130d260098686fcc7c2Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/01/msg00023.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/4072-1/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.