cbcvebase.
CVE-2017-6984
published 2017-05-22

CVE-2017-6984: An issue was discovered in certain Apple products. iOS before 10.3.2 is affected. Safari before 10.1.1 is affected. iTunes before 12.6.1 on Windows is…

PriorityP263high8.8CVSS 3.0
AVNACLPRNUIRSUCHIHAH
EXPLOIT
EPSS
7.66%
93.9th percentile
An issue was discovered in certain Apple products. iOS before 10.3.2 is affected. Safari before 10.1.1 is affected. iTunes before 12.6.1 on Windows is affected. tvOS before 10.2.1 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

9 ranges
VendorProductVersion rangeFixed in
appleios
appleiphone_os<= 10.3.1
appleitunes<= 12.4.3
appleitunes_12.6.1_for_windows
applesafari<= 10.1
applesafari
appletvos<= 10.2
appletvos
debianwebkit2gtk< webkit2gtk 2.16.3-2 (bookworm)webkit2gtk 2.16.3-2 (bookworm)

Detection & IOCsextracted from sources · hover to see the quote

commandObject.prototype.__defineGetter__(1000, () => 2);
commandIntl.getCanonicalLocales(locales);
  • Trigger is a call to Intl.getCanonicalLocales() with a large locale array (>= BASE_ARRAY_STORAGE_VECTOR_LEN entries) combined with a poisoned Object.prototype getter on a numeric index (e.g., index 1000), causing a heap buffer overflow in WebKit JSC's intlObjectFuncGetCanonicalLocales.
  • The vulnerable code path is intlObjectFuncGetCanonicalLocales in WebKit JSC; monitor for crashes or memory corruption originating from this function when processing web content.
  • ·Exploit requires the victim to process a crafted web page; affected products are iOS < 10.3.2, Safari < 10.1.1, iTunes < 12.6.1 on Windows, and tvOS < 10.2.1 — all using the vulnerable WebKit 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
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