cbcvebase.
CVE-2017-13784
published 2017-11-13

CVE-2017-13784: An issue was discovered in certain Apple products. iOS before 11.1 is affected. Safari before 11.0.1 is affected. iCloud before 7.1 on Windows is affected…

PriorityP260high8.8CVSS 3.0
AVNACLPRNUIRSUCHIHAH
EXPLOIT
EPSS
5.79%
92.3th percentile
An issue was discovered in certain Apple products. iOS before 11.1 is affected. Safari before 11.0.1 is affected. iCloud before 7.1 on Windows is affected. iTunes before 12.7.1 on Windows is affected. tvOS before 11.1 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< 7.17.1
appleicloud_for_windows
appleios
appleiphone_os< 11.111.1
appleitunes< 12.7.112.7.1
appleitunes_12.7.1_for_windows
applesafari< 11.0.111.0.1
applesafari
appletvos< 11.111.1
appletvos
debianwebkit2gtk< webkit2gtk 2.18.1-1 (bookworm)webkit2gtk 2.18.1-1 (bookworm)

Detection & IOCsextracted from sources · hover to see the quote

  • Trigger requires DOM manipulation via element.before() followed by document.caretRangeFromPoint(0,0) call, which causes out-of-bounds read in WebCore::SimpleLineLayout::RunResolver::runForPoint
  • PoC HTML uses universal CSS rule '* { border-bottom: green solid; margin: 0px; }' combined with SVG SMIL event dispatch to trigger the vulnerable code path
  • ·Vulnerability is in WebKit's SimpleLineLayout subsystem; only triggered when SimpleLineLayout is active (affected by CSS properties like border-bottom and margin on all elements)
  • ·Affected products span multiple Apple platforms; patched versions are iOS 11.1, Safari 11.0.1, iCloud for Windows 7.1, iTunes 12.7.1 for Windows, tvOS 11.1; Debian webkit2gtk fixed in 2.18.1-1

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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