cbcvebase.
CVE-2017-7018
published 2017-07-20

CVE-2017-7018: An issue was discovered in certain Apple products. iOS before 10.3.3 is affected. Safari before 10.1.2 is affected. iCloud before 6.2.2 on Windows is affected…

PriorityP263high8.8CVSS 3.0
AVNACLPRNUIRSUCHIHAH
EXPLOIT
EPSS
7.04%
93.5th percentile
An issue was discovered in certain Apple products. iOS before 10.3.3 is affected. Safari before 10.1.2 is affected. iCloud before 6.2.2 on Windows is affected. iTunes before 12.6.2 on Windows is affected. tvOS before 10.2.2 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Affected

11 ranges
VendorProductVersion rangeFixed in
appleicloud< 6.2.26.2.2
appleicloud_for_windows
appleios
appleiphone_os< 10.3.310.3.3
appleitunes< 12.6.212.6.2
appleitunes_12.6.2_for_windows
applesafari< 10.1.210.1.2
applesafari
appletvos< 10.2.210.2.2
appletvos
debianwebkit2gtk< webkit2gtk 2.16.6-1 (bookworm)webkit2gtk 2.16.6-1 (bookworm)

Detection & IOCsextracted from sources · hover to see the quote

commandfunction f() { (function () { eval('1'); f(); }()); throw 1; } f();
  • The vulnerability is triggered via a crafted web page targeting WebKit's DFG JIT ByteCodeParser — specifically incorrect scope register handling in 'DFG::ByteCodeParser::flush(InlineStackEntry* inlineStackEntry)'. Monitor for JavaScript patterns combining recursive inline functions, eval(), and exception throwing as a PoC fingerprint.
  • The root cause is that the scope register of an inline stack entry's code block may have an incorrect offset during the stack layout phase. Detection should focus on WebKit/JSC DFG JIT crashes or memory corruption triggered by maliciously crafted web content.
  • Exploitation vector is remote via a crafted web site — monitor web proxy/browser telemetry for crashes or unexpected process termination in Safari, WebKit-based browsers, iTunes, iCloud, or tvOS WebKit components on unpatched versions (iOS < 10.3.3, Safari < 10.1.2, iCloud for Windows < 6.2.2, iTunes for Windows < 12.6.2, tvOS < 10.2.2).
  • ·Multiple Apple products are affected; patched versions are iOS 10.3.3, Safari 10.1.2, iCloud for Windows 6.2.2, iTunes for Windows 12.6.2, and tvOS 10.2.2. Ensure all are updated before relying on version-based detection exclusions.
  • ·On Debian-based Linux systems (webkit2gtk), the vulnerability is resolved in version 2.16.6-1 across all tracked branches (bookworm, bullseye, forky, sid, trixie).

CVSS provenance

nvdv3.08.8HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
osv8.8HIGH
vendor_debian8.8LOW
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