Buffer overflow in Apple Safari
CVE-2017-5949
JavaScriptCore in WebKit, as distributed in Safari Technology Preview Release 22, allows remote attackers to cause a denial of service (heap-based out-of-bounds write and application crash) or possibly have unspecified other impact via crafted JavaScript code that triggers access to red-zone memory locations, related to jit/ThunkGenerators.cpp, llint/LowLevelInterpreter32_64.asm, and llint/LowLevelInterpreter64.asm.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.018 (78.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- Apple Safari — versions 22
Weakness classification (CWE)
References
- www.securityfocus.com/bid/97298 (VDB Entry, Third Party Advisory, vdb-entry)
- trac.webkit.org/changeset/211479 (Third Party Advisory, Issue Tracking)
- bugs.webkit.org/show_bug.cgi (Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2017-5949?
- CVE-2017-5949 is a critical-severity vulnerability in Apple Safari, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2017-04-03.
- How severe is CVE-2017-5949?
- Critical severity. CVSS v3 base score is 9.8 out of 10.