PT-2013-5645 · Cisco · Cisco Ios Xr
Publicado
2013-11-07
·
Atualizado
2013-11-14
·
CVE-2013-5565
CVSS v2.0
4.3
Média
| Vetor | AV:N/AC:M/Au:N/C:N/I:N/A:P |
Name of the Vulnerable Software and Affected Versions
Cisco IOS XR version 5.1
Description
The issue is related to the OSPFv3 functionality, which allows remote attackers to cause a denial of service (process crash) via a malformed LSA Type-1 packet. This is due to improper parsing of malformed type 1 link-state advertisement (LSA) packets. An attacker could exploit this by sending a malformed type 1 LSA packet to a vulnerable device, potentially leading to a crash of the OSPFv3 process and a denial of service (DoS) condition. The vulnerability can be exploited by an unauthenticated, remote attacker, but it may require access to trusted, internal networks.
Recommendations
For Cisco IOS XR version 5.1, update to a newer version that includes the fix for this issue, as confirmed by Cisco in their security notice. As a temporary workaround, consider restricting access to the OSPFv3 process to minimize the risk of exploitation. Avoid using the
LSA Type-1 packet in the affected API endpoint until the issue is resolved.Correção
DoS
Buffer Overflow
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Identificadores relacionados
Produtos afetados
Cisco Ios Xr