CVE-2015-7551: apple mac_os_x Improper Input Validation
Vulnerability summary
CVE-2015-7551 is a high (CVSS 8.4) Improper Input Validation vulnerability in apple mac_os_x. EPSS estimates a 0.50% chance of exploitation in the next 30 days, higher than 42.8% of scored vulnerabilities.
Not severe (CVSS 8.4, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 8 · Related 4Timeline
- 24-03-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
3 scores · 2 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated8.4HighCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.50%
Chance of exploitation in the next 30 days
Percentile
43%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.50% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Apple1 product
- mac_os_x≤ 10.11.3
Mageia1 product
- ruby< 2.0.0.p648-1.mga5
Ruby-lang1 product
- rubyEOL≤ 2.0.0-p647 | 2.1.0 | 2.1.1 | 2.1.2 | 2.1.3 | 2.1.4 | 2.1.5 | 2.1.6 | 2.1.7 | 2.2.0 | 2.2.1 | 2.2.2 | 2.2.3
Ubuntu1 product
- ruby2.0< 2.0.0.484-1ubuntu2.4
4 vendors · 4 products
References
17 links- people.canonical.com/~ubuntu-security/cve/2015/CVE-2015-7551.htmlX Refsource CONFIRM
- github.com/ruby/ruby/commit/339e11a7f178312d937b7c95dd3115ce7236597aX Refsource CONFIRM
bugs.debian.org/cgi-bin/bugreport.cgi?bug=796344X Refsource CONFIRM- www.ruby-lang.org/en/news/2015/12/16/unsafe-tainted-string-usage-in-fiddle-and-dl-cve-2015-7551/X Refsource CONFIRMPatchVendor AdvisoryWEBREPORT
- bugs.debian.org/cgi-bin/bugreport.cgi?bug=796551X Refsource CONFIRM
- www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlX Refsource CONFIRM
- puppet.com/security/cve/ruby-dec-2015-security-fixesX Refsource CONFIRM