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CVE-2012-5958: Libupnp Project: Buffer overflow

CVE-2012-5958 has a CVSS v2 base score of 10.0 (the maximum on that scale) and affects Libupnp Project. Per its scoring, it can be exploited over the network, without authentication. The scored impact on confidentiality, integrity and availability is the highest available.

Vulnerability description

Stack-based buffer overflow in the unique_service_name function in ssdp/ssdp_server.c in the SSDP parser in the portable SDK for UPnP Devices (aka libupnp, formerly the Intel SDK for UPnP devices) before 1.6.18 allows remote attackers to execute arbitrary code via a UDP packet with a crafted string that is not properly handled after a certain pointer subtraction.

Severity breakdown

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

Access vector: Network. Exploitable remotely over the network.
Access complexity: Low. No special conditions are required.
Authentication: None. No authentication is needed.
Confidentiality impact: Complete. Total information disclosure.
Integrity impact: Complete. Total loss of integrity.
Availability impact: Complete. Total shutdown of the component.

Underlying weakness

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.

Affected products

Libupnp Project: up to and including 1.6.17; 1.4.0; 1.4.1; 1.4.2; 1.4.3; 1.4.4; 1.4.5; 1.4.6; 1.4.7; 1.6.0; 1.6.1; 1.6.2