Cisco Unified IP Phone DNS response buffer overflow
| cisco-unifiedipphone-dns-bo (40485) |  High Risk |
Description:
Cisco Unified IP Phones running SCCP and SIP firmware are vulnerable to a buffer overflow, caused by improper bounds checking. By sending a specially-crafted DNS response, a remote attacker could overflow a buffer and execute arbitrary code on the phone.
Platforms Affected:
- Cisco, Unified IP Phone 7940
- Cisco, Unified IP Phone 7940G
- Cisco, Unified IP Phone 7960
- Cisco, Unified IP Phone 7960G
Remedy:
Refer to cisco-sa-20080213-phone for patch, upgrade or suggested workaround information. See References.
Consequences:
Gain Access
References:
- cisco-sa-20080213-phone, Cisco Security Advisory: Cisco Unified IP Phone Overflow and Denial of Service Vulnerabilities at http://www.cisco.com/warp/public/707/cisco-sa-20080213-phone.shtml.
- BID-27774: Cisco Unified IP Phone SCCP and SIP Protocol Multiple Remote Vulnerabilities
- CVE-2008-0530: Buffer overflow in Cisco Unified IP Phone 7940, 7940G, 7960, and 7960G running SCCP and SIP firmware might allow remote attackers to execute arbitrary code via a crafted DNS response.
- FrSIRT/ADV-2008-0543: Cisco Unified IP Phones Overflow and Denial of Service Vulnerabilities
- SA28935: Cisco Unified IP Phone Multiple Vulnerabilities
- SECTRACK ID: 1019406: Cisco Unified IP Phone Buffer Overflow in Parsing DNS Responses Lets Remote Users Execute Arbitrary Code
Reported:
Feb 13, 2008
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