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| Vigil@nce: Linux kernel, denial of service via rtl8169 |
| June 2009 by Vigil@nce |
| An attacker can send a long packet in order to stop systems with the rtl8169 driver. |
| Severity: 2/4 Consequences: denial of service of computer Provenance: LAN Means of attack: 1 attack Ability of attacker: technician (2/4) Confidence: confirmed by the editor (5/5) Diffusion of the vulnerable configuration: high (3/3) Creation date: 10/06/2009 IMPACTED PRODUCTS
DESCRIPTION OF THE VULNERABILITY The rtl8169 driver implements the support of network adapters of the Realtek RTL81xx suite. These adapters can receive Ethernet frames with a size of 16383 bytes (jumbo frames). However, the rtl8169 driver only supports 1500 bytes. Longer frames generate an overflow. An attacker located on a network supporting jumbo frames can therefore send a long frame in order to generate a denial of service, and eventually to execute code. CHARACTERISTICS Identifiers: BID-35281, CVE-2009-1389, VIGILANCE-VUL-8786 http://vigilance.fr/vulnerability/Linux-kernel-denial-of-service-via-rtl8169-8786 |
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