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CVE-2008-1923

UnknownEPSS 1.40%

Last modified

CVE-2008-1923 is a vulnerability of currently unknown severity. The IAX2 channel driver (chan_iax2) in Asterisk 1.2 before revision 72630 and 1.4 before revision 65679, when configured to allow unauthenticated calls, sends "early audio" to an unverified source IP address of a NEW message, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed NEW message.. EPSS estimates a 1.40% chance of exploitation in the next 30 days.

Description

The IAX2 channel driver (chan_iax2) in Asterisk 1.2 before revision 72630 and 1.4 before revision 65679, when configured to allow unauthenticated calls, sends "early audio" to an unverified source IP address of a NEW message, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed NEW message.

Metrics

EPSS Probability
1.40%

69.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
AsteriskAsterisk Appliance Developer KitAll versions—
AsteriskAsterisk Business Edition<= b2.5.1—
AsteriskAsterisk Business Edition<= c1.8.0—
AsteriskAsterisk Business Editiona—
AsteriskAsterisk Business Editionb.1.3.2—
AsteriskAsterisk Business Editionb.1.3.3—
AsteriskAsterisk Business Editionb.2.2.0—
AsteriskAsterisk Business Editionb.2.2.1—
AsteriskAsterisk Business Editionb.2.3.1—
AsteriskAsterisk Business Editionb.2.3.2—
AsteriskAsterisk Business Editionb.2.3.3—
AsteriskAsterisk Business Editionb.2.3.4—
AsteriskAsterisk Business Editionb.2.5.0—
AsteriskAsterisk Business Editionc.1.0-beta7—
AsteriskAsterisk Business Editionc.1.0-beta8—
AsteriskAsterisk Business Editionc.1.0beta7—
AsteriskAsterisk Business Editionc.1.6.1—
AsteriskAsterisknow<= 1.0.2—
AsteriskAsterisknow1.0—
AsteriskAsterisknow1.0.1—
AsteriskOpen Source1.0—
AsteriskOpen Source1.0.0—
AsteriskOpen Source1.0.1—
AsteriskOpen Source1.0.2—
AsteriskOpen Source1.0.3—
AsteriskOpen Source1.0.4—
AsteriskOpen Source1.0.5—
AsteriskOpen Source1.0.6—
AsteriskOpen Source1.0.7—
AsteriskOpen Source1.0.8—
AsteriskOpen Source1.0.9—
AsteriskOpen Source1.0.11—
AsteriskOpen Source1.0.11.1—
AsteriskOpen Source1.0.12—
AsteriskOpen Source1.2.0—
AsteriskOpen Source1.2.1—
AsteriskOpen Source1.2.2—
AsteriskOpen Source1.2.3—
AsteriskOpen Source1.2.4—
AsteriskOpen Source1.2.5—
AsteriskOpen Source1.2.6—
AsteriskOpen Source1.2.7—
AsteriskOpen Source1.2.7.1—
AsteriskOpen Source1.2.8—
AsteriskOpen Source1.2.9—
AsteriskOpen Source1.2.9.1—
AsteriskOpen Source1.2.10—
AsteriskOpen Source1.2.11—
AsteriskOpen Source1.2.12—
AsteriskOpen Source1.2.12.1—

Showing 50 of 103 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2008-1923?
The IAX2 channel driver (chan_iax2) in Asterisk 1.2 before revision 72630 and 1.4 before revision 65679, when configured to allow unauthenticated calls, sends "early audio" to an unverified source IP address of a NEW message, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed NEW message.
How severe is CVE-2008-1923?
Severity scoring for CVE-2008-1923 is pending analysis. The EPSS model estimates a 1.40% probability of exploitation in the next 30 days.
How do I fix CVE-2008-1923?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2008-1923?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST