CVE-2011-4231: Input Validation
First published: Thu May 03 2012(Updated: )
Cisco IOS 15.1 and 15.2 and IOS XE 3.x, when configured as an IPsec hub with X.509 certificates in use, allows remote authenticated users to cause a denial of service (segmentation fault and device crash) via unspecified vectors, aka Bug ID CSCtq61128.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS | =15.1 | |
| Cisco IOS | =15.2 | |
| Cisco IOS XE | =3.2.0sg | |
| Cisco IOS XE | =3.5.0s | |
| Cisco IOS XE | =3.4.1s | |
| Cisco IOS XE | =3.3.3s | |
| Cisco IOS XE | =3.3.1s | |
| Cisco IOS XE | =3.2.0s | |
| Cisco IOS XE | =3.3.2s | |
| Cisco IOS XE | =3.5.2s | |
| Cisco IOS XE | =3.4.0as | |
| Cisco IOS XE | =3.4.3s | |
| Cisco IOS XE | =3.2.1s | |
| Cisco IOS XE | =3.1.0sg | |
| Cisco IOS XE | =3.1.2s | |
| Cisco IOS XE | =3.4.0s | |
| Cisco IOS XE | =3.1.1s | |
| Cisco IOS XE | =3.2.2s | |
| Cisco IOS XE | =3.4.2s | |
| Cisco IOS XE | =3.1.0s | |
| Cisco IOS XE | =3.1.4s | |
| Cisco IOS XE | =3.3.0s | |
| Cisco IOS XE | =3.1.3s | |
| Cisco IOS XE | =3.5.1s | |
| Cisco IOS XE | =3.1.1sg |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2011-4231?
CVE-2011-4231 has been rated as a high severity vulnerability due to its potential for causing a denial of service.
How do I fix CVE-2011-4231?
To mitigate CVE-2011-4231, update your Cisco IOS to a version that has addressed this vulnerability.
Which Cisco IOS versions are affected by CVE-2011-4231?
CVE-2011-4231 affects Cisco IOS versions 15.1, 15.2, and IOS XE 3.x.
What type of vulnerability is CVE-2011-4231?
CVE-2011-4231 is a denial of service (DoS) vulnerability that can result in a device crash.
Can remote users exploit CVE-2011-4231?
Yes, remote authenticated users can exploit CVE-2011-4231 using unspecified vectors to cause a denial of service.
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- agent/references
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- agent/first-publish-date
- collector/mitre-cve
- source/MITRE
- agent/author
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- agent/severity
- agent/tags
- agent/description
- agent/event
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- vendor/cisco
- canonical/cisco ios
- version/cisco ios/15.1
- version/cisco ios/15.2
- canonical/cisco ios xe
- version/cisco ios xe/3.2.0sg
- version/cisco ios xe/3.5.0s
- version/cisco ios xe/3.4.1s
- version/cisco ios xe/3.3.3s
- version/cisco ios xe/3.3.1s
- version/cisco ios xe/3.2.0s
- version/cisco ios xe/3.3.2s
- version/cisco ios xe/3.5.2s
- version/cisco ios xe/3.4.0as
- version/cisco ios xe/3.4.3s
- version/cisco ios xe/3.2.1s
- version/cisco ios xe/3.1.0sg
- version/cisco ios xe/3.1.2s
- version/cisco ios xe/3.4.0s
- version/cisco ios xe/3.1.1s
- version/cisco ios xe/3.2.2s
- version/cisco ios xe/3.4.2s
- version/cisco ios xe/3.1.0s
- version/cisco ios xe/3.1.4s
- version/cisco ios xe/3.3.0s
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- version/cisco ios xe/3.5.1s
- version/cisco ios xe/3.1.1sg