CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
89.6%
The remote Ubuntu 23.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6422-2 advisory.
PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In affected versions if the incoming STUN message contains an ERROR-CODE attribute, the header length is not checked before performing a subtraction operation, potentially resulting in an integer underflow scenario. This issue affects all users that use STUN. A malicious actor located within the victim’s network may forge and send a specially crafted UDP (STUN) message that could remotely execute arbitrary code on the victim’s machine. Users are advised to upgrade as soon as possible. There are no known workarounds. (CVE-2021-37706)
PJSIP is a free and open source multimedia communication library written in C. A buffer overflow vulnerability in versions 2.13 and prior affects applications that use PJSIP DNS resolver. It doesn’t affect PJSIP users who do not utilise PJSIP DNS resolver. This vulnerability is related to CVE-2022-24793.
The difference is that this issue is in parsing the query record parse_query()
, while the issue in CVE-2022-24793 is in parse_rr()
. A patch is available as commit d1c5e4d
in the master
branch. A workaround is to disable DNS resolution in PJSIP config (by setting nameserver_count
to zero) or use an external resolver implementation instead. (CVE-2023-27585)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-6422-2. The text
# itself is copyright (C) Canonical, Inc. See
# <https://ubuntu.com/security/notices>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
##
include('compat.inc');
if (description)
{
script_id(183787);
script_version("1.0");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/24");
script_cve_id("CVE-2021-37706", "CVE-2023-27585");
script_xref(name:"USN", value:"6422-2");
script_name(english:"Ubuntu 23.10 : Ring vulnerabilities (USN-6422-2)");
script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote Ubuntu 23.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the
USN-6422-2 advisory.
- PJSIP is a free and open source multimedia communication library written in C language implementing
standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In affected versions if the incoming
STUN message contains an ERROR-CODE attribute, the header length is not checked before performing a
subtraction operation, potentially resulting in an integer underflow scenario. This issue affects all
users that use STUN. A malicious actor located within the victim's network may forge and send a specially
crafted UDP (STUN) message that could remotely execute arbitrary code on the victim's machine. Users are
advised to upgrade as soon as possible. There are no known workarounds. (CVE-2021-37706)
- PJSIP is a free and open source multimedia communication library written in C. A buffer overflow
vulnerability in versions 2.13 and prior affects applications that use PJSIP DNS resolver. It doesn't
affect PJSIP users who do not utilise PJSIP DNS resolver. This vulnerability is related to CVE-2022-24793.
The difference is that this issue is in parsing the query record `parse_query()`, while the issue in
CVE-2022-24793 is in `parse_rr()`. A patch is available as commit `d1c5e4d` in the `master` branch. A
workaround is to disable DNS resolution in PJSIP config (by setting `nameserver_count` to zero) or use an
external resolver implementation instead. (CVE-2023-27585)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/notices/USN-6422-2");
script_set_attribute(attribute:"solution", value:
"Update the affected jami and / or jami-daemon packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-37706");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2021/12/22");
script_set_attribute(attribute:"patch_publication_date", value:"2023/10/24");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/10/24");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:23.10");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:jami");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:jami-daemon");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Ubuntu Local Security Checks");
script_copyright(english:"Ubuntu Security Notice (C) 2023 Canonical, Inc. / NASL script (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");
exit(0);
}
include('debian_package.inc');
if ( ! get_kb_item('Host/local_checks_enabled') ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('23.10' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 23.10', 'Ubuntu ' + os_release);
if ( ! get_kb_item('Host/Debian/dpkg-l') ) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Ubuntu', cpu);
var pkgs = [
{'osver': '23.10', 'pkgname': 'jami', 'pkgver': '20230206.0~ds2-1.3ubuntu0.1'},
{'osver': '23.10', 'pkgname': 'jami-daemon', 'pkgver': '20230206.0~ds2-1.3ubuntu0.1'}
];
var flag = 0;
foreach package_array ( pkgs ) {
var osver = NULL;
var pkgname = NULL;
var pkgver = NULL;
if (!empty_or_null(package_array['osver'])) osver = package_array['osver'];
if (!empty_or_null(package_array['pkgname'])) pkgname = package_array['pkgname'];
if (!empty_or_null(package_array['pkgver'])) pkgver = package_array['pkgver'];
if (osver && pkgname && pkgver) {
if (ubuntu_check(osver:osver, pkgname:pkgname, pkgver:pkgver)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : ubuntu_report_get()
);
exit(0);
}
else
{
var tested = ubuntu_pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'jami / jami-daemon');
}
Vendor | Product | Version | CPE |
---|---|---|---|
canonical | ubuntu_linux | 23.10 | cpe:/o:canonical:ubuntu_linux:23.10 |
canonical | ubuntu_linux | jami | p-cpe:/a:canonical:ubuntu_linux:jami |
canonical | ubuntu_linux | jami-daemon | p-cpe:/a:canonical:ubuntu_linux:jami-daemon |
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
89.6%