cbcvebase.
CVE-2017-2454
published 2017-04-02

CVE-2017-2454: An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. tvOS before 10.2 is affected. The issue…

PriorityP264high8.8CVSS 3.0
AVNACLPRNUIRSUCHIHAH
EXPLOIT
EPSS
6.77%
93.2th percentile
An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. tvOS before 10.2 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

7 ranges
VendorProductVersion rangeFixed in
appleios
appleiphone_os<= 10.2.1
applesafari<= 10.0.3
applesafari
appletvos<= 10.1.1
appletvos
debianwebkit2gtk< webkit2gtk 2.14.6-1 (bookworm)webkit2gtk 2.14.6-1 (bookworm)

Detection & IOCsextracted from sources · hover to see the quote

  • The vulnerability is triggered via a crafted web page using HTMLInputElement Use-After-Free: setting input.type to an invalid value followed by accessing input.selectionStart triggers the memory corruption in WebKit.
  • The crash originates in WebCore's setAttribute path when processing the selectionStart property after a type change on an HTMLInputElement — look for WebCore setAttribute calls following an input type mutation event in WebKit-based browsers.
  • Exploitation is delivered via a crafted web site — network-level detection should flag malicious web content targeting WebKit-based browsers (iOS <10.3, Safari <10.1, tvOS <10.2).
  • ·The exploit PoC targets Apple WebKit 10.0.2 specifically; the Use-After-Free is triggered through event handlers manipulating HTMLInputElement.type and selectionStart — the primitive may behave differently across WebKit versions or sandboxed renderer configurations.
  • ·Debian's webkit2gtk package resolves this CVE in version 2.14.6-1 across all tracked branches; detections targeting Linux/Debian WebKitGTK should verify the installed package version.

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
CVEs like this are exactly what “Exploited This Week” covers.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.