CVE-2021-46837

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2021-46837
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-46837.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-46837
Downstream
Published
2022-08-30T07:15:07.417Z
Modified
2026-03-14T11:18:52.243952Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

respjsipt38 in Sangoma Asterisk 16.x before 16.16.2, 17.x before 17.9.3, and 18.x before 18.2.2, and Certified Asterisk before 16.8-cert7, allows an attacker to trigger a crash by sending an m=image line and zero port in a response to a T.38 re-invite initiated by Asterisk. This is a re-occurrence of the CVE-2019-15297 symptoms but not for exactly the same reason. The crash occurs because there is an append operation relative to the active topology, but this should instead be a replace operation.

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
Last affected
d436f568583184a13aa46349af5a3f0907087b44
Introduced
a65908f83e2f17a3aca7eb39c8e06045aca02674
Fixed
e483670754ae41e94c571fb497004779c8c81fb2
Introduced
5ffe12b6ef30cd503f85d75745fd8d9c2cfafe47
Fixed
f1efd037a1fd0260d41538f331af139e2677eafe
Introduced
2c1bba3cbec008c8ce35c78a2c79f9f207ea58bc
Fixed
29ed38ff2de4e7eca8ee622588a0edc7635d49cb
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
847f753c4eda5891c4fe77dd7d0341381cb84975
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
affbc6907eb544bc6e049085de91002ca24ff930
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "16.8.0-NA"
        },
        {
            "introduced": "16.0.0"
        },
        {
            "fixed": "16.16.2"
        },
        {
            "introduced": "17.0.0"
        },
        {
            "fixed": "17.9.3"
        },
        {
            "introduced": "18.0.0"
        },
        {
            "fixed": "18.2.2"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "10.0"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "11.0"
        }
    ]
}

Database specific

unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "16.8.0-cert1"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "16.8.0-cert2"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "16.8.0-cert3"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "16.8.0-cert4"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "16.8.0-cert5"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "16.8.0-cert6"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "9.0"
            }
        ]
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-46837.json"