CVE-2015-5134

published 2015-08-14

CVE-2015-5134: Use-after-free vulnerability in Adobe Flash Player before 18.0.0.232 on Windows and OS X and before 11.2.202.508 on Linux, Adobe AIR before 18.0.0.199, Adobe…

Priority P2 65 critical 10 CVSS 2.0

AV N AC L Au N C C I C A C

EXPLOIT

Use-after-free vulnerability in Adobe Flash Player before 18.0.0.232 on Windows and OS X and before 11.2.202.508 on Linux, Adobe AIR before 18.0.0.199, Adobe AIR SDK before 18.0.0.199, and Adobe AIR SDK & Compiler before 18.0.0.199 allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2015-5127, CVE-2015-5130, CVE-2015-5539, CVE-2015-5540, CVE-2015-5550, CVE-2015-5551, CVE-2015-5556, CVE-2015-5557, CVE-2015-5559, CVE-2015-5561, CVE-2015-5563, CVE-2015-5564, and CVE-2015-5565.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
adobe	air	<= 18.0.0.180	—
adobe	air_sdk	<= 18.0.0.180	—
adobe	air_sdk_compiler	<= 18.0.0.180	—
adobe	flash_player	<= 11.2.202.491	—
adobe	flash_player	<= 18.0.0.209	—
opensuse	evergreen	—	—

Detection & IOCs extracted from sources · hover to see the quote

url https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/37852.zip↗

filename donotdelete.swf↗

filename loadswf.swf↗

filename donotdelete.fla↗

filename loadswf.as↗

• → Detect AS2 abuse of ASnative(2100, 200) to instantiate a NetConnection object from SharedObject data, which is the trigger for the use-after-free. ↗
• → Detect AS2 abuse of ASnative(252, 1) called on a freed object (Array push on dangling pointer) as the post-UAF exploitation primitive. ↗
• → Detect SWF files that use ASSetPropFlags to strip all property flags (0xff) on SharedObject and SharedObject.data, a common obfuscation/exploitation pattern preceding the UAF trigger. ↗
• → Detect heap spray pattern using large BitmapData allocations (100x1000 pixels) in a loop of 100 iterations, used to set up the heap for exploitation after the UAF. ↗
• → Detect SWF files that assign a complex object to NetConnection.contentType via SharedObject.data, which is the specific property setter that triggers the UAF in AS2 native class handling. ↗
• → Exploit PoC requires two SWF files (loadswf.swf and donotdelete.swf) served from the same web directory; detect co-hosted SWF pairs with these filenames on web servers. ↗

• · The PoC is confirmed to work only on 64-bit systems with this specific heap setup; 32-bit exploitation would require a different heap arrangement. ↗
• · The PoC may not trigger reliably when loaded from a local filesystem due to Flash network sandboxing; it requires files to be served from a web server. ↗
• · The UAF condition is not limited to NetConnection.contentType; it also affects multiple properties of the Sound and NetStream AS2 classes. ↗

CVSS provenance

nvd v2.0 10.0 CRITICAL AV:N/AC:L/Au:N/C:C/I:C/A:C

osv 10.0 CRITICAL

vendor_redhat 10.0 CRITICAL

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