CVE-2024-42491

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Source
https://nvd.nist.gov/vuln/detail/CVE-2024-42491
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-42491.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-42491
Aliases
  • GHSA-v428-g3cw-7hv9
Downstream
Published
2024-09-05T17:17:56Z
Modified
2025-10-20T20:23:42.095779Z
Severity
  • 5.7 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
A malformed Contact or Record-Route URI in an incoming SIP request can cause Asterisk to crash when res_resolver_unbound is used
Details

Asterisk is an open-source private branch exchange (PBX). Prior to versions 18.24.3, 20.9.3, and 21.4.3 of Asterisk and versions 18.9-cert12 and 20.7-cert2 of certified-asterisk, if Asterisk attempts to send a SIP request to a URI whose host portion starts with .1 or [.1], and resresolverunbound is loaded, Asterisk will crash with a SEGV. To receive a patch, users should upgrade to one of the following versions: 18.24.3, 20.9.3, 21.4.3, certified-18.9-cert12, certified-20.7-cert2. Two workarounds are available. Disable resresolverunbound by setting noload = res_resolver_unbound.so in modules.conf, or set rewrite_contact = yes on all PJSIP endpoints. NOTE: This may not be appropriate for all Asterisk configurations.

Database specific 
{
    "cwe_ids": [
        "CWE-252",
        "CWE-476"
    ]
}
References

Affected packages

Git / github.com/asterisk/asterisk

Affected ranges

Type
GIT
Repo
https://github.com/asterisk/asterisk
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
f8dddb0e3d8baa3e0649f0e878305f3f810016ac
Type
GIT
Repo
https://github.com/asterisk/asterisk
Events
Introduced
de4f63b4824c91a0cd9f3d95f3b7923bec71960c
Fixed
c5e30b7e157b67ec6dba64d3b1a3a3cac907e524
Type
GIT
Repo
https://github.com/asterisk/asterisk
Events
Introduced
12da95e53ff42287ad69d6d5922e06c3d62010ac
Fixed
489a05f269e005242027ab47d37fb6b6a1651989
Type
GIT
Repo
https://github.com/asterisk/asterisk
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
d03864911eeba347b4378fbade5e1aa3bc697855
Type
GIT
Repo
https://github.com/asterisk/asterisk
Events
Introduced
de4f63b4824c91a0cd9f3d95f3b7923bec71960c
Fixed
4ca53af6d3313f23a1755298e5de7600b8435ae7

Affected versions

18.*

18.17.0
18.17.0-rc1
18.17.1
18.18.0
18.18.0-rc1
18.18.1
18.19.0
18.19.0-rc1
18.19.0-rc2
18.20.0
18.20.0-rc1
18.20.1
18.20.2
18.21.0
18.21.0-rc1
18.21.0-rc2
18.22.0
18.22.0-rc1
18.22.0-rc2
18.23.0
18.23.0-rc1
18.23.1
18.24.0
18.24.0-rc1
18.24.1
18.24.2
18.9.0
18.9.0-rc1

21.*

21.0.0
21.0.1
21.0.2
21.1.0
21.1.0-rc1
21.1.0-rc2
21.2.0
21.2.0-rc1
21.2.0-rc2
21.3.0
21.3.0-rc1
21.3.1
21.4.0
21.4.0-rc1
21.4.1
21.4.2

certified-18.*

certified-18.9-cert10
certified-18.9-cert11
certified-18.9-cert4
certified-18.9-cert5
certified-18.9-cert6
certified-18.9-cert7
certified-18.9-cert8
certified-18.9-cert8-rc1
certified-18.9-cert8-rc2
certified-18.9-cert9

certified/18.*

certified/18.9-cert1
certified/18.9-cert1-rc1
certified/18.9-cert2
certified/18.9-cert3
certified/18.9-cert4