FKIE_CVE-2023-27601

Vulnerability from fkie_nvd - Published: 2023-03-15 22:15 - Updated: 2024-11-21 07:53
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Prior to versions 3.1.7 and 3.2.4, OpenSIPS crashes when a malformed SDP body is received and is processed by the `delete_sdp_line` function in the sipmsgops module. This issue can be reproduced by calling the function with an SDP body that does not terminate by a line feed (i.e. `\n`). The vulnerability was found while performing black-box fuzzing against an OpenSIPS server running a configuration that made use of the functions `codec_delete_except_re` and `codec_delete_re`. The same issue was also discovered while performing coverage guided fuzzing on the function `codec_delete_except_re`. The crash happens because the function `delete_sdp_line` expects that an SDP line is terminated by a line feed (`\n`): By abusing this vulnerability, an attacker is able to crash the server. It affects configurations containing functions that rely on the affected code, such as the function `codec_delete_except_re`. Due to the sanity check that is performed in the `del_lump` function, exploitation of this issue will generate an `abort` in the lumps processing function, resulting in a Denial of Service. This issue has been fixed in versions 3.1.7 and 3.2.4.
References
security-advisories@github.comhttps://github.com/OpenSIPS/opensips/commit/8f87c7c03da55f9c79bd92e67fa2c94b2a7ce5cfPatch, Third Party Advisory
security-advisories@github.comhttps://github.com/OpenSIPS/opensips/security/advisories/GHSA-xj5x-g52f-548hThird Party Advisory
security-advisories@github.comhttps://opensips.org/docs/modules/3.3.x/sipmsgops.htmlVendor Advisory
security-advisories@github.comhttps://opensips.org/pub/audit-2022/opensips-audit-technical-report-full.pdfVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/OpenSIPS/opensips/commit/8f87c7c03da55f9c79bd92e67fa2c94b2a7ce5cfPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/OpenSIPS/opensips/security/advisories/GHSA-xj5x-g52f-548hThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://opensips.org/docs/modules/3.3.x/sipmsgops.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://opensips.org/pub/audit-2022/opensips-audit-technical-report-full.pdfVendor Advisory
Impacted products
Vendor Product Version
opensips opensips *
opensips opensips *
To clipboard 

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      "value": "OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Prior to versions 3.1.7 and 3.2.4, OpenSIPS crashes when a malformed SDP body is received and is processed by the `delete_sdp_line` function in the sipmsgops module. This issue can be reproduced by calling the function with an SDP body that does not terminate by a line feed (i.e. `\\n`).\n\nThe vulnerability was found while performing black-box fuzzing against an OpenSIPS server running a configuration that made use of the functions `codec_delete_except_re` and `codec_delete_re`. The same issue was also discovered while performing coverage guided fuzzing on the function `codec_delete_except_re`. The crash happens because the function `delete_sdp_line` expects that an SDP line is terminated by a line feed (`\\n`):\n\nBy abusing this vulnerability, an attacker is able to crash the server. It affects configurations containing functions that rely on the affected code, such as the function `codec_delete_except_re`. Due to the sanity check that is performed in the `del_lump` function, exploitation of this issue will generate an `abort` in the lumps processing function, resulting in a Denial of Service. This issue has been fixed in versions 3.1.7 and 3.2.4."
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  "id": "CVE-2023-27601",
  "lastModified": "2024-11-21T07:53:14.323",
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