kbrain

CVE-2009-0871

LOW · CVSS 3.5EPSS 2.6%EU EUVD

The SIP channel driver in Asterisk Open Source 1.4.22, 1.4.23, and 1.4.23.1; 1.6.0 before 1.6.0.6; 1.6.1 before 1.6.1.0-rc2; and Asterisk Business Edition C.2.3, with the pedantic option enabled, allows remote authenticated users to cause a denial of service (crash) via a SIP INVITE request without any headers, which triggers a NULL pointer dereference in the (1) sip_uri_headers_cmp and (2) sip_uri_params_cmp functions.

Key facts

CVSS score
3.5 (v2.0)
Severity
LOW
CVSS vector
AV:N/AC:M/Au:S/C:N/I:N/A:P
Weakness (CWE)
CWE-20
EPSS score
2.6% (85th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2009-0868)
Published
March 11, 2009
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-0868 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

  • digium / asterisk
  • digium / asterisk
  • digium / asterisk
  • digium / asterisk
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  • digium / asterisk
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  • digium / asterisk
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  • digium / asterisk
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  • digium / asterisk
  • digium / asterisk
  • digium / asterisk
  • digium / asterisk
  • digium / asterisk
  • digium / asterisk
  • digium / asterisk
  • digium / asterisk
  • digium / asterisk
  • digium / asterisk

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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