HIGH✓ PATCH🇵🇱 Wersja polska

CVE-2023-20049

CVSS 8.6v3.1pub. 2023-03-09upd. 2024-11-21

A vulnerability in the bidirectional forwarding detection (BFD) hardware offload feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers, ASR 9902 Compact High-Performance Routers, and ASR 9903 Compact High-Performance Routers could allow an unauthenticated, remote attacker to cause a line card to reset, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of malformed BFD packets that are received on line cards where the BFD hardware offload feature is enabled. An attacker could exploit this vulnerability by sending a crafted IPv4 BFD packet to an affected device. A successful exploit could allow the attacker to cause line card exceptions or a hard reset, resulting in loss of traffic over that line card while the line card reloads.

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

  • Cisco Asr 9000v V2

    HW
    Cisco
    wszystkie wersje

  • Cisco Asr 9001

    HW
    Cisco
    wszystkie wersje

  • Cisco Asr 9006

    HW
    Cisco
    wszystkie wersje

  • Cisco Asr 9010

    HW
    Cisco
    wszystkie wersje

  • Cisco Asr 9901

    HW
    Cisco
    wszystkie wersje

  • Cisco Asr 9902

    HW
    Cisco
    wszystkie wersje

  • Cisco Asr 9903

    HW
    Cisco
    wszystkie wersje

  • Cisco Asr 9904

    HW
    Cisco
    wszystkie wersje

  • Cisco Asr 9906

    HW
    Cisco
    wszystkie wersje

  • Cisco Asr 9910

    HW
    Cisco
    wszystkie wersje

  • Cisco Asr 9912

    HW
    Cisco
    wszystkie wersje

  • Cisco Asr 9922

    HW
    Cisco
    wszystkie wersje

  • Cisco IOS XR

    OS
    Cisco
    7.77.6 – 7.6.2 (bez)< 7.5.3
🟢
PATCH AVAILABLE
Vendor update available. Deploy in standard maintenance cycle.
Tags
DoS
CWE
References

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