CVE-2017-2531
published 2017-05-22CVE-2017-2531: An issue was discovered in certain Apple products. iOS before 10.3.2 is affected. Safari before 10.1.1 is affected. tvOS before 10.2.1 is affected. The issue…
PriorityP263high8.8CVSS 3.0
AVNACLPRNUIRSUCHIHAH
EXPLOIT
EPSS
6.57%
93.0th percentile
An issue was discovered in certain Apple products. iOS before 10.3.2 is affected. Safari before 10.1.1 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
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios | — | — |
| apple | iphone_os | <= 10.3.1 | — |
| apple | safari | <= 10.1 | — |
| apple | safari | — | — |
| apple | tvos | <= 10.2 | — |
| apple | tvos | — | — |
| debian | webkit2gtk | < webkit2gtk 2.16.3-2 (bookworm) | webkit2gtk 2.16.3-2 (bookworm) |
Detection & IOCsextracted from sources · hover to see the quote
- →Exploit triggers an OOB write in WebKit JSC via a crafted JavaScript class hierarchy using arrow functions, super expressions, and deeply nested class constructors. Look for JS with large argument arrays (0x10000 entries), nested class definitions with arrow functions referencing `super`, and repeated `.trigger()` calls in a loop. ↗
- →The vulnerability is triggered when a class context (`m_codeBlock->isClassContext()`) causes `emitPutDerivedConstructorToArrowFunctionContextScope` to call `emitPutToScope` without a secured slot, resulting in an out-of-bounds write. Detection should focus on WebKit JSC bytecode generation paths involving `derivedConstructorPrivateName` in arrow function scope contexts. ↗
- →Exploit loop calls `gun.trigger()` 0x10000 (65536) times to reliably achieve memory corruption. High-frequency repeated method calls on a nested class instance in JavaScript may indicate exploitation attempts. ↗
- ·Vulnerability is in WebKit JSC (JavaScript Core) bytecode generator; affected products are iOS before 10.3.2, Safari before 10.1.1, and tvOS before 10.2.1. Detection is only relevant for unpatched versions of these products. ↗
- ·The Debian WebKit package resolved this issue in version 2.16.3-2 across all tracked branches (bookworm, bullseye, forky, sid, trixie). Scope is listed as local in the Debian tracker, which may affect detection priority in network-based monitoring. ↗
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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GHSA
GHSA-vmp6-jq25-g6qc: An issue was discovered in certain Apple products
ghsa_unreviewed·2022-05-14
CVE-2017-2531 [HIGH] CWE-119 GHSA-vmp6-jq25-g6qc: An issue was discovered in certain Apple products
An issue was discovered in certain Apple products. iOS before 10.3.2 is affected. Safari before 10.1.1 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.
OSV
CVE-2017-2531: An issue was discovered in certain Apple products
osv·2017-05-22·CVSS 8.8
CVE-2017-2531 [HIGH] CVE-2017-2531: An issue was discovered in certain Apple products
An issue was discovered in certain Apple products. iOS before 10.3.2 is affected. Safari before 10.1.1 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.
Apple
CVE-2017-2531: iOS 10.3.2
vendor_apple·2017-05-15·CVSS 8.8
CVE-2017-2531 [HIGH] CVE-2017-2531: iOS 10.3.2
Apple Security Update: About the security content of iOS 10.3.2
Product: iOS
Version: 10.3.2
CVE: CVE-2017-2531
Component: WebKit
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed with improved memory handling.
Apple
CVE-2017-2531: tvOS 10.2.1
vendor_apple·2017-05-15·CVSS 8.8
CVE-2017-2531 [HIGH] CVE-2017-2531: tvOS 10.2.1
Apple Security Update: About the security content of tvOS 10.2.1
Product: tvOS
Version: 10.2.1
CVE: CVE-2017-2531
Component: WebKit
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed with improved memory handling.
Apple
CVE-2017-2531: Safari 10.1.1
vendor_apple·2017-05-15·CVSS 8.8
CVE-2017-2531 [HIGH] CVE-2017-2531: Safari 10.1.1
Apple Security Update: About the security content of Safari 10.1.1
Product: Safari
Version: 10.1.1
CVE: CVE-2017-2531
Component: WebKit
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed with improved memory handling.
Debian
CVE-2017-2531: webkit2gtk - An issue was discovered in certain Apple products. iOS before 10.3.2 is affected...
vendor_debian·2017·CVSS 8.8
CVE-2017-2531 [HIGH] CVE-2017-2531: webkit2gtk - An issue was discovered in certain Apple products. iOS before 10.3.2 is affected...
An issue was discovered in certain Apple products. iOS before 10.3.2 is affected. Safari before 10.1.1 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.
Scope: local
bookworm: resolved (fixed in 2.16.3-2)
bullseye: resolved (fixed in 2.16.3-2)
forky: resolved (fixed in 2.16.3-2)
sid: resolved (fixed in 2.16.3-2)
trixie: resolved (fixed in 2.16.3-2)
No detection rules found.
No writeups or analysis indexed.
http://www.securityfocus.com/bid/98473http://www.securitytracker.com/id/1038487https://security.gentoo.org/glsa/201706-15https://support.apple.com/HT207798https://support.apple.com/HT207801https://support.apple.com/HT207804https://www.exploit-db.com/exploits/42104/http://www.securityfocus.com/bid/98473http://www.securitytracker.com/id/1038487https://security.gentoo.org/glsa/201706-15https://support.apple.com/HT207798https://support.apple.com/HT207801https://support.apple.com/HT207804https://www.exploit-db.com/exploits/42104/
2017-05-22
Published