CVE-2023-37457

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Source
https://nvd.nist.gov/vuln/detail/CVE-2023-37457
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-37457.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-37457
Aliases
  • GHSA-98rc-4j27-74hh
Downstream
Published
2023-12-14T19:43:30.945Z
Modified
2025-11-19T20:04:57.620450Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Asterisk's PJSIP_HEADER dialplan function can overwrite memory/cause crash when using 'update'
Details

Asterisk is an open source private branch exchange and telephony toolkit. In Asterisk versions 18.20.0 and prior, 20.5.0 and prior, and 21.0.0; as well as ceritifed-asterisk 18.9-cert5 and prior, the 'update' functionality of the PJSIP_HEADER dialplan function can exceed the available buffer space for storing the new value of a header. By doing so this can overwrite memory or cause a crash. This is not externally exploitable, unless dialplan is explicitly written to update a header based on data from an outside source. If the 'update' functionality is not used the vulnerability does not occur. A patch is available at commit a1ca0268254374b515fa5992f01340f7717113fa.

Database specific 
{
    "cwe_ids": [
        "CWE-120"
    ]
}
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
5c38e52afcda9c65d422b0f7323d7dc63746dc7f
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "18.20.0"
        }
    ]
}
Type
GIT
Repo
https://github.com/asterisk/asterisk
Events
Introduced
de4f63b4824c91a0cd9f3d95f3b7923bec71960c
Last affected
c94e2b2000cd9781cd2be7b4050b7f3cde851e01
Database specific 
{
    "versions": [
        {
            "introduced": "19.0.0"
        },
        {
            "last_affected": "20.5.0"
        }
    ]
}
Type
GIT
Repo
https://github.com/asterisk/asterisk
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
12da95e53ff42287ad69d6d5922e06c3d62010ac
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "= 21.0.0"
        }
    ]
}
Type
GIT
Repo
https://github.com/asterisk/asterisk
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
b2a1aa2d1090b765d064ef8edda9118c25e2346f
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "18.9-cert5"
        }
    ]
}

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
18.9.0
18.9.0-rc1

21.*

21.0.0
21.0.0-pre1
21.0.0-rc1

certified-18.*

certified-18.9-cert4
certified-18.9-cert5

certified/18.*

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