Improper input validation in Apple Mac OS X
CVE-2015-7551
The Fiddle::Handle implementation in ext/fiddle/handle.c in Ruby before 2.0.0-p648, 2.1 before 2.1.8, and 2.2 before 2.2.4, as distributed in Apple OS X before 10.11.4 and other products, mishandles tainting, which allows context-dependent attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted string, related to the DL module and the libffi library. NOTE: this vulnerability exists because of a CVE-2009-5147 regression.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.4 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (41.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Apple Mac OS X
- Ruby-Lang Ruby — versions 2.1.0, 2.1.1, 2.1.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.apple.com/archives/security-announce/2016/Mar/msg00004.html (vendor-advisory)
- people.canonical.com/~ubuntu-security/cve/2015/CVE-2015-7551.html
- support.apple.com/HT206167 (Vendor Advisory)
- github.com/ruby/ruby/commit/339e11a7f178312d937b7c95dd3115ce7236597a
- bugs.debian.org/cgi-bin/bugreport.cgi
- www.ruby-lang.org/en/news/2015/12/16/unsafe-tainted-string-usage-in-fiddle-and-… (Patch, Vendor Advisory)
- bugs.debian.org/cgi-bin/bugreport.cgi
- www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- puppet.com/security/cve/ruby-dec-2015-security-fixes
- access.redhat.com/errata/RHSA-2018:0583 (vendor-advisory)
Frequently asked questions
- What is CVE-2015-7551?
- CVE-2015-7551 is a high-severity vulnerability in Apple Mac OS X, classified under Improper Input Validation. CVSS score: 8.4/10. Published 2016-03-24.
- How severe is CVE-2015-7551?
- High severity. CVSS v3 base score is 8.4 out of 10.
- Is CVE-2015-7551 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.