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Linux Distros Unpatched Vulnerability : CVE-2025-12205

🗓️ 28 Oct 2025 00:00:00Reported by TenableType 
nessus
 nessus🔗 www.tenable.com👁 3 Views

Kamailio 5.5 unpatched vulnerability CVE-2025-12205 allows local use-after-free in sr_push_yy_state.

Related
Refs
Code
ReporterTitlePublishedViews
Family
Circl		CVE-2025-12205
27 Oct 202519:03
–circl
CNNVD		Kamailio 资源管理错误漏洞
27 Oct 202500:00
–cnnvd
CVE		CVE-2025-12205
27 Oct 202502:32
–cve
Cvelist		CVE-2025-12205 Kamailio Configuration File cfg.lex sr_push_yy_state use after free
27 Oct 202502:32
–cvelist
Debian CVE		CVE-2025-12205
27 Oct 202502:32
–debiancve
EUVD		EUVD-2025-36071
27 Oct 202502:32
–euvd
NVD		CVE-2025-12205
27 Oct 202503:15
–nvd
OSV		DEBIAN-CVE-2025-12205
27 Oct 202503:15
–osv
OSV		UBUNTU-CVE-2025-12205
27 Oct 202503:15
–osv
Positive Technologies		PT-2025-43865
27 Oct 202500:00
–ptsecurity
Rows per page
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(271819);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/06/02");

  script_cve_id("CVE-2025-12205");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2025-12205");

  script_set_attribute(attribute:"synopsis", value:
"The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be
patched.");
  script_set_attribute(attribute:"description", value:
"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied
patch available.

  - A vulnerability was detected in Kamailio 5.5. The affected element is the function sr_push_yy_state of the
    file src/core/cfg.lex of the component Configuration File Handler. The manipulation results in use after
    free. The attack must be initiated from a local position. The exploit is now public and may be used. The
    real existence of this vulnerability is still doubted at the moment. This attack requires manipulating
    config files which might not be a realistic scenario in many cases. The vendor was contacted early about
    this disclosure but did not respond in any way. (CVE-2025-12205)

Note that Nessus relies on the presence of the package as reported by the vendor.");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-12205");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/CVE-2025-12205");
  script_set_attribute(attribute:"solution", value:
"There is no known solution at this time.");
  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:U/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:U/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-12205");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_set_attribute(attribute:"vendor_unpatched", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/10/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/10/28");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:22.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:24.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:25.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:25.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:26.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:11.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:12.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:13.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:14.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:kamailio");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:kamailio");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2025-2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info2.nasl", "set_linux_os_id.nasl");
  script_require_keys("Host/cpu", "Host/local_checks_enabled", "global_settings/vendor_unpatched", "Host/OS/identifier");
  script_require_ports("Host/OS/Debian Linux-11", "Host/OS/Debian Linux-12", "Host/OS/Debian Linux-13", "Host/OS/Debian Linux-14", "Host/OS/Ubuntu Linux-16.04", "Host/OS/Ubuntu Linux-18.04", "Host/OS/Ubuntu Linux-20.04", "Host/OS/Ubuntu Linux-22.04", "Host/OS/Ubuntu Linux-24.04", "Host/OS/Ubuntu Linux-25.04", "Host/OS/Ubuntu Linux-25.10", "Host/OS/Ubuntu Linux-26.04");

  exit(0);
}

if (!get_kb_item("global_settings/vendor_unpatched")) exit(0, "Unpatched Vulnerabilities Detection not active.");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (empty_or_null(get_one_kb_item("Host/Debian/dpkg-l"))) audit(AUDIT_PACKAGE_LIST_MISSING);

include('linux_unpatched.inc');

var distro_constraints_array = {
  "Debian Linux-12": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "12",
        "pkgs": [
          {"reference": "kamailio"},
          {"reference": "kamailio-autheph-modules"},
          {"reference": "kamailio-berkeley-bin"},
          {"reference": "kamailio-berkeley-modules"},
          {"reference": "kamailio-cnxcc-modules"},
          {"reference": "kamailio-cpl-modules"},
          {"reference": "kamailio-erlang-modules"},
          {"reference": "kamailio-geoip-modules"},
          {"reference": "kamailio-geoip2-modules"},
          {"reference": "kamailio-ims-modules"},
          {"reference": "kamailio-json-modules"},
          {"reference": "kamailio-kazoo-modules"},
          {"reference": "kamailio-ldap-modules"},
          {"reference": "kamailio-lua-modules"},
          {"reference": "kamailio-memcached-modules"},
          {"reference": "kamailio-mongodb-modules"},
          {"reference": "kamailio-mono-modules"},
          {"reference": "kamailio-mqtt-modules"},
          {"reference": "kamailio-mysql-modules"},
          {"reference": "kamailio-outbound-modules"},
          {"reference": "kamailio-perl-modules"},
          {"reference": "kamailio-phonenum-modules"},
          {"reference": "kamailio-postgres-modules"},
          {"reference": "kamailio-presence-modules"},
          {"reference": "kamailio-python3-modules"},
          {"reference": "kamailio-rabbitmq-modules"},
          {"reference": "kamailio-radius-modules"},
          {"reference": "kamailio-redis-modules"},
          {"reference": "kamailio-ruby-modules"},
          {"reference": "kamailio-sctp-modules"},
          {"reference": "kamailio-secsipid-modules"},
          {"reference": "kamailio-snmpstats-modules"},
          {"reference": "kamailio-sqlite-modules"},
          {"reference": "kamailio-systemd-modules"},
          {"reference": "kamailio-tls-modules"},
          {"reference": "kamailio-unixodbc-modules"},
          {"reference": "kamailio-utils-modules"},
          {"reference": "kamailio-websocket-modules"},
          {"reference": "kamailio-xml-modules"},
          {"reference": "kamailio-xmpp-modules"}
        ]
      }
    ]
  },
  "Debian Linux-11": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "11",
        "pkgs": [
          {"reference": "kamailio"},
          {"reference": "kamailio-autheph-modules"},
          {"reference": "kamailio-berkeley-bin"},
          {"reference": "kamailio-berkeley-modules"},
          {"reference": "kamailio-cnxcc-modules"},
          {"reference": "kamailio-cpl-modules"},
          {"reference": "kamailio-erlang-modules"},
          {"reference": "kamailio-extra-modules"},
          {"reference": "kamailio-geoip-modules"},
          {"reference": "kamailio-geoip2-modules"},
          {"reference": "kamailio-ims-modules"},
          {"reference": "kamailio-json-modules"},
          {"reference": "kamailio-kazoo-modules"},
          {"reference": "kamailio-ldap-modules"},
          {"reference": "kamailio-lua-modules"},
          {"reference": "kamailio-memcached-modules"},
          {"reference": "kamailio-mongodb-modules"},
          {"reference": "kamailio-mono-modules"},
          {"reference": "kamailio-mqtt-modules"},
          {"reference": "kamailio-mysql-modules"},
          {"reference": "kamailio-outbound-modules"},
          {"reference": "kamailio-perl-modules"},
          {"reference": "kamailio-phonenum-modules"},
          {"reference": "kamailio-postgres-modules"},
          {"reference": "kamailio-presence-modules"},
          {"reference": "kamailio-python3-modules"},
          {"reference": "kamailio-rabbitmq-modules"},
          {"reference": "kamailio-radius-modules"},
          {"reference": "kamailio-redis-modules"},
          {"reference": "kamailio-ruby-modules"},
          {"reference": "kamailio-sctp-modules"},
          {"reference": "kamailio-snmpstats-modules"},
          {"reference": "kamailio-sqlite-modules"},
          {"reference": "kamailio-systemd-modules"},
          {"reference": "kamailio-tls-modules"},
          {"reference": "kamailio-unixodbc-modules"},
          {"reference": "kamailio-utils-modules"},
          {"reference": "kamailio-websocket-modules"},
          {"reference": "kamailio-xml-modules"},
          {"reference": "kamailio-xmpp-modules"}
        ]
      }
    ]
  },
  "Debian Linux-14": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "14",
        "pkgs": [
          {"reference": "kamailio"},
          {"reference": "kamailio-autheph-modules"},
          {"reference": "kamailio-cnxcc-modules"},
          {"reference": "kamailio-cpl-modules"},
          {"reference": "kamailio-erlang-modules"},
          {"reference": "kamailio-geoip2-modules"},
          {"reference": "kamailio-ims-modules"},
          {"reference": "kamailio-json-modules"},
          {"reference": "kamailio-kazoo-modules"},
          {"reference": "kamailio-ldap-modules"},
          {"reference": "kamailio-lua-modules"},
          {"reference": "kamailio-lwsc-modules"},
          {"reference": "kamailio-memcached-modules"},
          {"reference": "kamailio-mongodb-modules"},
          {"reference": "kamailio-mqtt-modules"},
          {"reference": "kamailio-mysql-modules"},
          {"reference": "kamailio-nats-modules"},
          {"reference": "kamailio-outbound-modules"},
          {"reference": "kamailio-perl-modules"},
          {"reference": "kamailio-phonenum-modules"},
          {"reference": "kamailio-postgres-modules"},
          {"reference": "kamailio-presence-modules"},
          {"reference": "kamailio-python3-modules"},
          {"reference": "kamailio-rabbitmq-modules"},
          {"reference": "kamailio-radius-modules"},
          {"reference": "kamailio-redis-modules"},
          {"reference": "kamailio-ruby-modules"},
          {"reference": "kamailio-sctp-modules"},
          {"reference": "kamailio-secsipid-modules"},
          {"reference": "kamailio-snmpstats-modules"},
          {"reference": "kamailio-sqlite-modules"},
          {"reference": "kamailio-systemd-modules"},
          {"reference": "kamailio-tls-modules"},
          {"reference": "kamailio-tls-wolfssl-modules"},
          {"reference": "kamailio-unixodbc-modules"},
          {"reference": "kamailio-utils-modules"},
          {"reference": "kamailio-websocket-modules"},
          {"reference": "kamailio-xml-modules"},
          {"reference": "kamailio-xmpp-modules"}
        ]
      }
    ]
  },
  "Debian Linux-13": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "13",
        "pkgs": [
          {"reference": "kamailio"},
          {"reference": "kamailio-autheph-modules"},
          {"reference": "kamailio-berkeley-bin"},
          {"reference": "kamailio-berkeley-modules"},
          {"reference": "kamailio-cnxcc-modules"},
          {"reference": "kamailio-cpl-modules"},
          {"reference": "kamailio-erlang-modules"},
          {"reference": "kamailio-geoip2-modules"},
          {"reference": "kamailio-ims-modules"},
          {"reference": "kamailio-json-modules"},
          {"reference": "kamailio-kazoo-modules"},
          {"reference": "kamailio-ldap-modules"},
          {"reference": "kamailio-lua-modules"},
          {"reference": "kamailio-lwsc-modules"},
          {"reference": "kamailio-memcached-modules"},
          {"reference": "kamailio-mongodb-modules"},
          {"reference": "kamailio-mqtt-modules"},
          {"reference": "kamailio-mysql-modules"},
          {"reference": "kamailio-outbound-modules"},
          {"reference": "kamailio-perl-modules"},
          {"reference": "kamailio-phonenum-modules"},
          {"reference": "kamailio-postgres-modules"},
          {"reference": "kamailio-presence-modules"},
          {"reference": "kamailio-python3-modules"},
          {"reference": "kamailio-rabbitmq-modules"},
          {"reference": "kamailio-radius-modules"},
          {"reference": "kamailio-redis-modules"},
          {"reference": "kamailio-ruby-modules"},
          {"reference": "kamailio-sctp-modules"},
          {"reference": "kamailio-secsipid-modules"},
          {"reference": "kamailio-snmpstats-modules"},
          {"reference": "kamailio-sqlite-modules"},
          {"reference": "kamailio-systemd-modules"},
          {"reference": "kamailio-tls-modules"},
          {"reference": "kamailio-tls-wolfssl-modules"},
          {"reference": "kamailio-unixodbc-modules"},
          {"reference": "kamailio-utils-modules"},
          {"reference": "kamailio-websocket-modules"},
          {"reference": "kamailio-xml-modules"},
          {"reference": "kamailio-xmpp-modules"}
        ]
      }
    ]
  },
  "Ubuntu Linux-16.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "16.04",
        "pkgs": [
          {"reference": "kamailio"}
        ]
      }
    ]
  },
  "Ubuntu Linux-18.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "18.04",
        "pkgs": [
          {"reference": "kamailio"}
        ]
      }
    ]
  },
  "Ubuntu Linux-20.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "20.04",
        "pkgs": [
          {"reference": "kamailio"}
        ]
      }
    ]
  },
  "Ubuntu Linux-22.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "22.04",
        "pkgs": [
          {"reference": "kamailio"}
        ]
      }
    ]
  },
  "Ubuntu Linux-24.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "24.04",
        "pkgs": [
          {"reference": "kamailio"}
        ]
      }
    ]
  },
  "Ubuntu Linux-25.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "25.04",
        "pkgs": [
          {"reference": "kamailio"}
        ]
      }
    ]
  },
  "Ubuntu Linux-25.10": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "25.10",
        "pkgs": [
          {"reference": "kamailio"}
        ]
      }
    ]
  },
  "Ubuntu Linux-26.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "26.04",
        "pkgs": [
          {"reference": "kamailio"}
        ]
      }
    ]
  }
};

var distro_constraints_values = linux_unpatched::get_distro_constraints(distro_constraints_arr:distro_constraints_array);
if (empty_or_null(distro_constraints_values)) audit(AUDIT_HOST_NOT, 'affected');
var report = linux_unpatched::check_unpatched_constraints(distro_constraints_values:distro_constraints_values);

if (!empty_or_null(report))
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_NOTE,
      extra      : report
  );
  exit(0);
}
else
{
  audit(AUDIT_HOST_NOT, 'affected');
}

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02 Jun 2026 00:00Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.15.3 - 7.8
CVSS 24.3
CVSS 44.8
CVSS 35.3
EPSS0.00021
SSVC
Kamailio 5.5unpatched vulnerabilityuse after freelocal exploitationsr_push_yy_statecfg lex fileCVE-2025-12205
3