CVE-2010-3035: Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service Vulnerability
First published: Mon Aug 30 2010(Updated: )
Cisco IOS XR 3.4.0 through 3.9.1, when BGP is enabled, does not properly handle unrecognized transitive attributes, which allows remote attackers to cause a denial of service (peering reset) via a crafted prefix announcement, as demonstrated in the wild in August 2010 with attribute type code 99, aka Bug ID CSCti62211.
Credit: ykramarz@cisco.com ykramarz@cisco.com psirt@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS XRv 9000 | >=3.4.0<=3.9.1 | |
| Cisco IOS XRv 9000 | ||
| Cisco IOS XRv 9000 | =3.6.1 | |
| Cisco IOS XRv 9000 | =3.6.2 | |
| Cisco IOS XRv 9000 | =3.8.4 | |
| Cisco IOS XRv 9000 | =3.9.0 | |
| Cisco IOS XRv 9000 | =3.4.0 | |
| Cisco IOS XRv 9000 | =3.9.1 | |
| Cisco IOS XRv 9000 | =3.5.2 | |
| Cisco IOS XRv 9000 | =3.8.1 | |
| Cisco IOS XRv 9000 | =3.4.2 | |
| Cisco IOS XRv 9000 | =3.8.2 | |
| Cisco IOS XRv 9000 | =3.7.2 | |
| Cisco IOS XRv 9000 | =3.4.1 | |
| Cisco IOS XRv 9000 | =3.8.3 | |
| Cisco IOS XRv 9000 | =3.7.0 | |
| Cisco IOS XRv 9000 | =3.4.3 | |
| Cisco IOS XRv 9000 | =3.6.0 | |
| Cisco IOS XRv 9000 | =3.7.1 | |
| Cisco IOS XRv 9000 | =3.5.3 | |
| Cisco IOS XRv 9000 | =3.7.3 | |
| Cisco IOS XRv 9000 | =3.6.3 | |
| Cisco IOS XRv 9000 | =3.8.0 | |
| Cisco IOS XRv 9000 | =3.5.4 |
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Reference Links
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080b4411f.shtml
- http://mailman.nanog.org/pipermail/nanog/2010-August/024837.html
- http://www.vupen.com/english/advisories/2010/2227
- http://www.securitytracker.com/id?1024371
- http://secunia.com/advisories/41190
- http://osvdb.org/67696
- https://exchange.xforce.ibmcloud.com/vulnerabilities/61443
- https://nvd.nist.gov/vuln/detail/CVE-2010-3035
Frequently Asked Questions
What is the severity of CVE-2010-3035?
CVE-2010-3035 has a moderate severity rating due to its potential to cause a denial of service.
How do I fix CVE-2010-3035?
To mitigate CVE-2010-3035, upgrade Cisco IOS XR to versions beyond 3.9.1 that contain the necessary patches.
What systems are affected by CVE-2010-3035?
CVE-2010-3035 affects Cisco IOS XR versions 3.4.0 through 3.9.1 when BGP is enabled.
Can CVE-2010-3035 be exploited remotely?
Yes, CVE-2010-3035 can be exploited by remote attackers through crafted prefix announcements.
What impact does CVE-2010-3035 have on network availability?
CVE-2010-3035 can lead to peering resets, causing interruptions in network availability.
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