CVE-2015-5556

published 2015-08-14

CVE-2015-5556: 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 64 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-2015-5134, CVE-2015-5539, CVE-2015-5540, CVE-2015-5550, CVE-2015-5551, 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/37873.zip↗

• → Look for SWF files invoking createTextField() with a non-string object (e.g., an object with overridden toString/valueOf) as the first argument, which is the trigger condition for the use-after-free. ↗
• → Detect SWF files containing a MovieClip hierarchy where createTextField is called on a child clip and a callback (toString/valueOf override) removes a parent or sibling MovieClip during the call, indicating UAF exploitation of CVE-2015-5556. ↗
• → Flag ActionScript patterns where removeMovieClip() is called from within a toString or valueOf callback triggered during createTextField execution. ↗

• · The vulnerability affects Adobe Flash Player before 18.0.0.232 on Windows/OS X and before 11.2.202.508 on Linux, as well as Adobe AIR before 18.0.0.199 and its SDK variants. Detection should be scoped to these version ranges. ↗
• · CVE-2015-5556 is one of multiple use-after-free CVEs sharing the same affected version range and attack surface in Adobe Flash; detections based solely on version may produce overlapping results with related CVEs (CVE-2015-5127, CVE-2015-5130, CVE-2015-5134, CVE-2015-5539, CVE-2015-5540, CVE-2015-5550, CVE-2015-5551, CVE-2015-5557, CVE-2015-5559, CVE-2015-5561, CVE-2015-5563, CVE-2015-5564, CVE-2015-5565). ↗

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

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.