7.8
CWE
Advisory Published
Updated

CVE-2008-2739

First published: Fri Sep 26 2008(Updated: )

The SERVICE.DNS signature engine in the Intrusion Prevention System (IPS) in Cisco IOS 12.3 and 12.4 allows remote attackers to cause a denial of service (device crash or hang) via network traffic that triggers unspecified IPS signatures, a different vulnerability than CVE-2008-1447.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco IOS=12.3xr
Cisco IOS=12.3ya
Cisco IOS=12.3xs
Cisco IOS=12.4xj
Cisco IOS=12.4xt
Cisco IOS=12.3t
Cisco IOS=12.4xf
Cisco IOS=12.4xv
Cisco IOS=12.3yd
Cisco IOS=12.3xl
Cisco IOS=12.3yk
Cisco IOS=12.3yt
Cisco IOS=12.4xk
Cisco IOS=12.3yg
Cisco IOS=12.4xa
Cisco IOS=12.3za
Cisco IOS=12.4xe
Cisco IOS=12.3xq
Cisco IOS=12.3ys
Cisco IOS=12.3yh
Cisco IOS=12.3xx
Cisco IOS=12.4xc
Cisco IOS=12.3yi

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Frequently Asked Questions

  • What is the severity of CVE-2008-2739?

    CVE-2008-2739 has been classified as a denial of service vulnerability that can result in device crashes or hangs.

  • How do I fix CVE-2008-2739?

    To fix CVE-2008-2739, upgrade to a non-vulnerable version of Cisco IOS as specified in Cisco's advisory.

  • What versions of Cisco IOS are affected by CVE-2008-2739?

    CVE-2008-2739 affects several versions of Cisco IOS, including 12.3 and 12.4 versions as detailed in the advisory.

  • Can CVE-2008-2739 be exploited remotely?

    Yes, CVE-2008-2739 can be exploited remotely through specific network traffic targeting the IPS signature engine.

  • What impact does CVE-2008-2739 have on network security?

    CVE-2008-2739 can allow attackers to disrupt network services, making devices vulnerable to denial of service conditions.

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