A vulnerability was found in RIOT (affected version unknown). It has been classified as critical. Affected is the function ipv6_addr_from_str of the file sys/net/network_layer/ipv6/addr/ipv6_addr_from_str.c of the component IPv6 Address Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Stack-based buffer overflow in the ipv6_addr_from_str function in sys/net/network_layer/ipv6/addr/ipv6_addr_from_str.c in RIOT prior to 2017-04-25 allows local attackers, and potentially remote attackers, to cause a denial of service or possibly have unspecified other impact via a malformed IPv6 address.

The bug was discovered 04/26/2017. The weakness was released 04/27/2017 (GitHub Repository). The advisory is available at github.com. This vulnerability is traded as CVE-2017-8289 since 04/26/2017. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

Entries connected to this vulnerability are available at VDB-1093, VDB-158859, VDB-165799 and VDB-193832.

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• RIOT

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