medium
5
CWE
20
Advisory Published
Updated

CVE-2011-2535: Input Validation

First published: Wed Jul 06 2011(Updated: )

chan_iax2.c in the IAX2 channel driver in Asterisk Open Source 1.4.x before 1.4.41.1, 1.6.2.x before 1.6.2.18.1, and 1.8.x before 1.8.4.3, and Asterisk Business Edition C.3 before C.3.7.3, accesses a memory address contained in an option control frame, which allows remote attackers to cause a denial of service (daemon crash) or possibly have unspecified other impact via a crafted frame.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Asterisk=1.8.3-rc3
Asterisk=1.8.3
Asterisk=1.8.2.4
Asterisk=1.8.0-beta2
Asterisk=1.8.3-rc1
Asterisk=1.8.1
Asterisk=1.8.1.2
Asterisk=1.8.0-beta4
Asterisk=1.8.4-rc1
Asterisk=1.8.0-rc5
Asterisk=1.8.3.1
Asterisk=1.8.0-beta3
Asterisk=1.8.0-beta5
Asterisk=1.8.4
Asterisk=1.8.3.2
Asterisk=1.8.0-rc2
Asterisk=1.8.3-rc2
Asterisk=1.8.4.2
Asterisk=1.8.2.3
Asterisk=1.8.3.3
Asterisk=1.8.4-rc2
Asterisk=1.8.2.1
Asterisk=1.8.1-rc1
Asterisk=1.8.0
Asterisk=1.8.0-rc3
Asterisk=1.8.1.1
Asterisk=1.8.2
Asterisk=1.8.2.2
Asterisk=1.8.4-rc3
Asterisk=1.8.0-beta1
Asterisk=1.8.0-rc4
Asterisk=1.8.4.1
Asterisk=1.6.2.16.2
Asterisk=1.6.2.0-rc3
Asterisk=1.6.2.0-rc2
Asterisk=1.6.2.1
Asterisk=1.6.2.0-rc4
Asterisk=1.6.2.4
Asterisk=1.6.2.6
Asterisk=1.6.2.0-rc5
Asterisk=1.6.2.0-rc7
Asterisk=1.6.2.16-rc1
Asterisk=1.6.2.17-rc1
Asterisk=1.6.2.1-rc1
Asterisk=1.6.2.16
Asterisk=1.6.2.15-rc1
Asterisk=1.6.2.17
Asterisk=1.6.2.6-rc1
Asterisk=1.6.2.17.1
Asterisk=1.6.2.2
Asterisk=1.6.2.0-rc8
Asterisk=1.6.2.3-rc2
Asterisk=1.6.2.17-rc3
Asterisk=1.6.2.16.1
Asterisk=1.6.2.0
Asterisk=1.6.2.17-rc2
Asterisk=1.6.2.18-rc1
Asterisk=1.6.2.5
Asterisk=1.6.2.17.3
Asterisk=1.6.2.18
Asterisk=1.6.2.0-rc6
Asterisk=1.6.2.6-rc2
Asterisk=1.6.2.17.2
Asterisk=1.4.37-rc1
Asterisk=1.4.26.3
Asterisk=1.4.5
Asterisk=1.4.22-rc3
Asterisk=1.4.27-rc2
Asterisk=1.4.36-rc1
Asterisk=1.4.26-rc4
Asterisk=1.4.28
Asterisk=1.4.27-rc1
Asterisk=1.4.27.1
Asterisk=1.4.26-rc5
Asterisk=1.4.0-beta4
Asterisk=1.4.0-beta2
Asterisk=1.4.35-rc1
Asterisk=1.4.26.2
Asterisk=1.4.19.2
Asterisk=1.4.26.1
Asterisk=1.4.20-rc1
Asterisk=1.4.16
Asterisk=1.4.3
Asterisk=1.4.27-rc3
Asterisk=1.4.19.1
Asterisk=1.4.30
Asterisk=1.4.38-rc1
Asterisk=1.4.38
Asterisk=1.4.4
Asterisk=1.4.33
Asterisk=1.4.23-rc4
Asterisk=1.4.22
Asterisk=1.4.0
Asterisk=1.4.32
Asterisk=1.4.31-rc2
Asterisk=1.4.22.2
Asterisk=1.4.26-rc3
Asterisk=1.4.6
Asterisk=1.4.33-rc1
Asterisk=1.4.20
Asterisk=1.4.39
Asterisk=1.4.22.1
Asterisk=1.4.39.2
Asterisk=1.4.12.1
Asterisk=1.4.41
Asterisk=1.4.2
Asterisk=1.4.19
Asterisk=1.4.29
Asterisk=1.4.20-rc3
Asterisk=1.4.18
Asterisk=1.4.34
Asterisk=1.4.21-rc2
Asterisk=1.4.22-rc1
Asterisk=1.4.40
Asterisk=1.4.10
Asterisk=1.4.41-rc1
Asterisk=1.4.35
Asterisk=1.4.24.1
Asterisk=1.4.10.1
Asterisk=1.4.16.1
Asterisk=1.4.19-rc4
Asterisk=1.4.31
Asterisk=1.4.33.1
Asterisk=1.4.25-rc1
Asterisk=1.4.25
Asterisk=1.4.11
Asterisk=1.4.23
Asterisk=1.4.39.1
Asterisk=1.4.7
Asterisk=1.4.7.1
Asterisk=1.4.26-rc2
Asterisk=1.4.29-rc1
Asterisk=1.4.22-rc2
Asterisk=1.4.15
Asterisk=1.4.34-rc2
Asterisk=1.4.31-rc1
Asterisk=1.4.28-rc1
Asterisk=1.4.40-rc1
Asterisk=1.4.19-rc3
Asterisk=1.4.23-rc1
Asterisk=1.4.27
Asterisk=1.4.25.1
Asterisk=1.4.34-rc1
Asterisk=1.4.21.1
Asterisk=1.4.19-rc2
Asterisk=1.4.9
Asterisk=1.4.12
Asterisk=1.4.37
Asterisk=1.4.20-rc2
Asterisk=1.4.19-rc1
Asterisk=1.4.13
Asterisk=1.4.21.2
Asterisk=1.4.27-rc4
Asterisk=1.4.40.2
Asterisk=1.4.33-rc2
Asterisk=1.4.17
Asterisk=1.4.40-rc2
Asterisk=1.4.29.1
Asterisk=1.4.23-rc2
Asterisk=1.4.22-rc4
Asterisk=1.4.22-rc5
Asterisk=1.4.40.1
Asterisk=1.4.21-rc1
Asterisk=1.4.26-rc1
Asterisk=1.4.26-rc6
Asterisk=1.4.1
Asterisk=1.4.32-rc1
Asterisk=1.4.39-rc1
Asterisk=1.4.14
Asterisk=1.4.20.1
Asterisk=1.4.24
Asterisk=1.4.0-beta1
Asterisk=1.4.40-rc3
Asterisk=1.4.24-rc1
Asterisk=1.4.26
Asterisk=1.4.16.2
Asterisk=1.4.23.2
Asterisk=1.4.27-rc5
Asterisk=1.4.30-rc2
Asterisk=1.4.23.1
Asterisk=1.4.23-rc3
Asterisk=1.4.8
Asterisk=1.4.30-rc3
Asterisk=1.4.36
Asterisk=1.4.0-beta3
Asterisk=1.4.21
Asterisk=c.3.1.0
Asterisk=c.3.6.2
Asterisk=c.3.1.1
Asterisk=c.3.2.2
Asterisk=c.3.6.4
Asterisk=c.3.0
Asterisk=c.3.6.3
Asterisk=c.3.2.3
Asterisk=c.3.3.2

Remedy

http://downloads.asterisk.org/pub/security/AST-2011-010-1.8.diff

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2011-2535?

    CVE-2011-2535 is classified as a high severity vulnerability due to its potential to cause denial of service attacks.

  • How do I fix CVE-2011-2535?

    To fix CVE-2011-2535, upgrade to Asterisk versions 1.4.41.1, 1.6.2.18.1, or 1.8.4.3 or later.

  • What systems are affected by CVE-2011-2535?

    CVE-2011-2535 affects Asterisk Open Source versions 1.4.x before 1.4.41.1, 1.6.2.x before 1.6.2.18.1, and 1.8.x before 1.8.4.3.

  • Can CVE-2011-2535 be exploited remotely?

    Yes, CVE-2011-2535 can be exploited by remote attackers to cause denial of service.

  • What happens if CVE-2011-2535 is exploited?

    If exploited, CVE-2011-2535 can lead to a denial of service, potentially disrupting the affected system's functionality.

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