9.8crit
CVE-2017-5949
JavaScriptCore in WebKit, as distributed in Safari Technology Preview Release 22, allows remote attackers to cause a denial of service (hea…
Published 9 y ago · modified 4 mo ago · JSON
CVSS
9.8
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.8%
percentile 79%
Public exploits
0
none known
Summary
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.
Exploit prediction (EPSS)
1.82% probability of exploitation in the next 30 days, higher than 79% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
- CWE-787 Out-of-bounds Write
References
- securityfocus.com /bid/97298 · vdb-entry, x_refsource_BID, x_transferred
- trac.webkit.org /changeset/211479 · x_refsource_CONFIRM, x_transferred
- bugs.webkit.org /show_bug.cgi?id=167239 · x_refsource_CONFIRM, x_transferred
Sources
- CVE List: CVE-2017-5949
- NVD: CVE-2017-5949
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