The NE2000 emulator in QEMU 0.8.2 allows local users to execute arbitrary code by writing Ethernet frames with a size larger than the MTU to the EN0_TCNT register, which triggers a heap-based buffer overflow in the slirp library, aka NE2000 "mtu" heap overflow.  NOTE: some sources have used CVE-2007-1321 to refer to this issue as part of "NE2000 network driver and the socket code," but this is the correct identifier for the mtu overflow vulnerability.
                
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References
        History
                    No history.
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: mitre
Published: 2007-10-30T22:00:00
Updated: 2024-08-07T15:39:13.675Z
Reserved: 2007-10-30T00:00:00
Link: CVE-2007-5729
 Vulnrichment
                        Vulnrichment
                    No data.
 NVD
                        NVD
                    Status : Deferred
Published: 2007-10-30T22:46:00.000
Modified: 2025-04-09T00:30:58.490
Link: CVE-2007-5729
 Redhat
                        Redhat
                    No data.