cbcvebase.
CVE-2017-13792
published 2017-11-13

CVE-2017-13792: 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

  • The vulnerability is triggered via a use-after-free in WebCore::InputType::element() — monitor for crashes or memory corruption originating from this call path in WebKit-based browsers
  • The PoC trigger sequence involves setting input.selectionDirection, dynamically appending a form element, and then changing input.type to an unsupported MIME type ('image/x-unsupported') — look for DOM manipulation patterns combining selectionDirection assignment with dynamic form/input type changes in JavaScript
  • The crash occurs in WebCore::TextFieldInputType::forwardEvent called from WebCore::HTMLInputElement::defaultEventHandler — heap-use-after-free on the InputType element pointer; useful for crash triage and ASan/fuzzer signature matching
  • ·The PoC was confirmed only on an ASan (AddressSanitizer) build of WebKit nightly; exploitation reliability on production/hardened builds may differ

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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