RCE in Oracle Graalvm
CVE-2019-16255
Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 allows code injection if the first argument (aka the "command" argument) to Shell#[] or Shell#test in lib/shell.rb is untrusted data. An attacker can exploit this to call an arbitrary Ruby method.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.042 (90.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.042 · newest: 0.042 · change: 0.000
Affected products
- Oracle Graalvm — versions 19.3.0.2
- Ruby-Lang Ruby
- Debian Linux — versions 8.0, 9.0
- openSUSE Leap — versions 15.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- hackerone.com/reports/327512 (Exploit, Patch, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2019/11/msg00025.html (Mailing List, Third Party Advisory)
- www.ruby-lang.org/ja/news/2019/10/01/ruby-2-6-5-released/ (Release Notes)
- www.ruby-lang.org/ja/news/2019/10/01/ruby-2-5-7-released/ (Release Notes)
- www.ruby-lang.org/ja/news/2019/10/01/ruby-2-4-8-released/ (Release Notes)
- www.ruby-lang.org/ja/news/2019/10/01/code-injection-shell-test-cve-2019-16255/ (Vendor Advisory)
- lists.debian.org/debian-lts-announce/2019/12/msg00009.html (mailing-list, Mailing List, Third Party Advisory)
- seclists.org/bugtraq/2019/Dec/31 (mailing-list, Mailing List, Third Party Advisory, Broken Link)
- seclists.org/bugtraq/2019/Dec/32 (mailing-list, Mailing List, Third Party Advisory, Broken Link)
- www.debian.org/security/2019/dsa-4587 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-16255?
- CVE-2019-16255 is a high-severity vulnerability in Oracle Graalvm, classified under Code Injection. CVSS score: 8.1/10. Published 2019-11-26.
- How severe is CVE-2019-16255?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2019-16255 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.