#VU45338 Buffer overflow in Shockwave Player - CVE-2011-0556

Vulnerability identifier: #VU45338

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2011-0556

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Shockwave Player
Client/Desktop applications / Plugins for browsers, ActiveX components

Vendor: Adobe

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The Font Xtra.x32 module in Adobe Shockwave Player before 11.5.9.620 allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted PFR1 chunk that leads to an unexpected sign extension and an invalid pointer dereference, a different vulnerability than CVE-2011-0569.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Shockwave Player: 1.0 - 11.5.8.612

---

External links
https://dvlabs.tippingpoint.com/advisory/TPTI-11-03
https://www.adobe.com/support/security/bulletins/apsb11-01.html
https://www.securityfocus.com/archive/1/516336/100/0/threaded
https://www.securityfocus.com/bid/46328
https://www.securitytracker.com/id?1025056
https://www.vupen.com/english/advisories/2011/0335
https://exchange.xforce.ibmcloud.com/vulnerabilities/65258

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.