CVE-2020-14001
The kramdown gem before 2.3.0 for Ruby processes the template option inside Kramdown documents by default, which allows unintended read access (such as template="/etc/passwd") or unintended embedded Ruby code execution (such as a string that begins with…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.56%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The kramdown gem before 2.3.0 for Ruby processes the template option inside Kramdown documents by default, which allows unintended read access (such as template="/etc/passwd") or unintended embedded Ruby code execution (such as a string that begins with template="string://<%= `). NOTE: kramdown is used in Jekyll, GitLab Pages, GitHub Pages, and Thredded Forum.
- 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
- 4.56% probability · 91th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-862
- Affected
- kramdown project/kramdown · debian/debian linux · fedoraproject/fedora · canonical/ubuntu linux
- Source
- cve@mitre.org
References
- https://github.com/gettalong/kramdownThird Party Advisory
- https://github.com/gettalong/kramdown/commit/1b8fd33c3120bfc6e5164b449e2c2fc9c9306fdePatch, Third Party Advisory
- https://github.com/gettalong/kramdown/compare/REL_2_2_1...REL_2_3_0Patch, Third Party Advisory
- https://kramdown.gettalong.orgVendor Advisory
- https://kramdown.gettalong.org/news.htmlRelease Notes, Vendor Advisory
- https://lists.apache.org/thread.html/r96df7899fbb456fe2705882f710a0c8e8614b573fbffd8d12e3f54d2%40%3Cnotifications.fluo.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2020/08/msg00014.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ENMMGKHRQIZ3QKGOMBBBGB6B4LB5I7NQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KBLTGBYU7NKOUOHDKVCU4GFZMGA6BP4L/
- https://rubygems.org/gems/kramdownThird Party Advisory
- https://security.netapp.com/advisory/ntap-20200731-0004/Third Party Advisory
- https://usn.ubuntu.com/4562-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4743Third Party Advisory
- https://github.com/gettalong/kramdownThird Party Advisory
- https://github.com/gettalong/kramdown/commit/1b8fd33c3120bfc6e5164b449e2c2fc9c9306fdePatch, Third Party Advisory
- https://github.com/gettalong/kramdown/compare/REL_2_2_1...REL_2_3_0Patch, Third Party Advisory
- https://kramdown.gettalong.orgVendor Advisory
- https://kramdown.gettalong.org/news.htmlRelease Notes, Vendor Advisory
- https://lists.apache.org/thread.html/r96df7899fbb456fe2705882f710a0c8e8614b573fbffd8d12e3f54d2%40%3Cnotifications.fluo.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2020/08/msg00014.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ENMMGKHRQIZ3QKGOMBBBGB6B4LB5I7NQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KBLTGBYU7NKOUOHDKVCU4GFZMGA6BP4L/
- https://rubygems.org/gems/kramdownThird Party Advisory
- https://security.netapp.com/advisory/ntap-20200731-0004/Third Party Advisory
- https://usn.ubuntu.com/4562-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4743Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.