GHSA-462w-v97r-4m45
Suggest an improvement- Source
- https://github.com/advisories/GHSA-462w-v97r-4m45
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2019/04/GHSA-462w-v97r-4m45/GHSA-462w-v97r-4m45.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-462w-v97r-4m45
- Aliases
- Published
- 2019-04-10T14:30:24Z
- Modified
- 2024-09-24T21:03:59.802687Z
- Severity
-
- 8.6 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
- 7.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N CVSS Calculator
- Summary
- Jinja2 sandbox escape via string formatting
- Details
-
In Pallets Jinja before 2.10.1,
str.format_mapallows a sandbox escape.The sandbox is used to restrict what code can be evaluated when rendering untrusted, user-provided templates. Due to the way string formatting works in Python, the
str.format_mapmethod could be used to escape the sandbox.This issue was previously addressed for the
str.formatmethod in Jinja 2.8.1, which discusses the issue in detail. However, the less-commonstr.format_mapmethod was overlooked. This release applies the same sandboxing to both methods.If you cannot upgrade Jinja, you can override the
is_safe_attributemethod on the sandbox and explicitly disallow theformat_mapmethod on string objects. - References
-
- https://nvd.nist.gov/vuln/detail/CVE-2019-10906
- https://usn.ubuntu.com/4011-2
- https://usn.ubuntu.com/4011-1
- https://palletsprojects.com/blog/jinja-2-10-1-released
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TS7IVZAJBWOHNRDMFJDIZVFCMRP6YIUQ
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QCDYIS254EJMBNWOG4S5QY6AOTOR4TZU
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DSW3QZMFVVR7YE3UT4YRQA272TYAL5AF
- https://lists.apache.org/thread.html/f0c4a03418bcfe70c539c5dbaf99c04c98da13bfa1d3266f08564316@%3Ccommits.airflow.apache.org%3E
- https://lists.apache.org/thread.html/b2380d147b508bbcb90d2cad443c159e63e12555966ab4f320ee22da@%3Ccommits.airflow.apache.org%3E
- https://lists.apache.org/thread.html/7f39f01392d320dfb48e4901db68daeece62fd60ef20955966739993@%3Ccommits.airflow.apache.org%3E
- https://lists.apache.org/thread.html/57673a78c4d5c870d3f21465c7e2946b9f8285c7c57e54c2ae552f02@%3Ccommits.airflow.apache.org%3E
- https://lists.apache.org/thread.html/46c055e173b52d599c648a98199972dbd6a89d2b4c4647b0500f2284@%3Cdevnull.infra.apache.org%3E
- https://lists.apache.org/thread.html/320441dccbd9a545320f5f07306d711d4bbd31ba43dc9eebcfc602df@%3Cdevnull.infra.apache.org%3E
- https://lists.apache.org/thread.html/2b52b9c8b9d6366a4f1b407a8bde6af28d9fc73fdb3b37695fd0d9ac@%3Cdevnull.infra.apache.org%3E
- https://lists.apache.org/thread.html/09fc842ff444cd43d9d4c510756fec625ef8eb1175f14fd21de2605f@%3Cdevnull.infra.apache.org%3E
- https://github.com/pypa/advisory-database/tree/main/vulns/jinja2/PYSEC-2019-217.yaml
- https://github.com/pallets/jinja
- https://github.com/advisories/GHSA-462w-v97r-4m45
- https://access.redhat.com/errata/RHSA-2019:1329
- https://access.redhat.com/errata/RHSA-2019:1237
- https://access.redhat.com/errata/RHSA-2019:1152
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00030.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00064.html
Affected packages
PyPI / jinja2
Package
- Name
- jinja2
- View open source insights on deps.dev
- Purl
- pkg:pypi/jinja2