According to the versions of the expat packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large     nesting depth in the DTD element. (CVE-2022-25313)

  - In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames. (CVE-2022-25315)

  - libexpat before 2.4.9 has a use-after-free in the doContent function in xmlparse.c. (CVE-2022-40674)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Debian 10 / 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5085 advisory.

  - xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks     for whether a UTF-8 character is valid in a certain context. (CVE-2022-25235)

  - xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters     into namespace URIs. (CVE-2022-25236)

  - In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large     nesting depth in the DTD element. (CVE-2022-25313)

  - In Expat (aka libexpat) before 2.4.5, there is an integer overflow in copyString. (CVE-2022-25314)

  - In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames. (CVE-2022-25315)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Debian 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-2935 advisory.

  - Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with     a nonzero XML_CONTEXT_BYTES. (CVE-2022-23852)

  - xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks     for whether a UTF-8 character is valid in a certain context. (CVE-2022-25235)

  - xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters     into namespace URIs. (CVE-2022-25236)

  - In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large     nesting depth in the DTD element. (CVE-2022-25313)

  - In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames. (CVE-2022-25315)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

According to its self-reported version, the Tenable Nessus application running on the remote host is 8.x prior to 8.15.5. It is, therefore, affected by multiple vulnerabilities in third-party libraries, including:

  - An integer overflow in storeRawNames in Expat (aka libexpat) before 2.4.5. (CVE-2022-25315)

  - Expat (aka libexpat) before 2.4.4 has an integer overflow in the doProlog function. (CVE-2022-23990)

  - Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_CONTEXT_BYTES. (CVE-2022-23852)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version   number.

The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0698-1 advisory.

  - xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks     for whether a UTF-8 character is valid in a certain context. (CVE-2022-25235)

  - xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters     into namespace URIs. (CVE-2022-25236)

  - In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large     nesting depth in the DTD element. (CVE-2022-25313)

  - In Expat (aka libexpat) before 2.4.5, there is an integer overflow in copyString. (CVE-2022-25314)

  - In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames. (CVE-2022-25315)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 16.04 ESM / 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5320-1 advisory.

    USN-5288-1 fixed several vulnerabilities in Expat. For CVE-2022-25236 it caused a regression and an     additional patch was required. This update address this regression and several other vulnerabilities.

    It was discovered that Expat incorrectly handled certain files. An attacker could possibly use this issue     to cause a denial of service. (CVE-2022-25313)

    It was discovered that Expat incorrectly handled certain files. An attacker could possibly use this issue     to cause a crash or execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS,     and Ubuntu 21.10. (CVE-2022-25314)

    It was discovered that Expat incorrectly handled certain files. An attacker could possibly use this issue     to cause a crash or execute arbitrary code. (CVE-2022-25315)



Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the expat package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks     for whether a UTF-8 character is valid in a certain context. (CVE-2022-25235)

  - xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters     into namespace URIs. (CVE-2022-25236)

  - In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large     nesting depth in the DTD element. (CVE-2022-25313)

  - In Expat (aka libexpat) before 2.4.5, there is an integer overflow in copyString. (CVE-2022-25314)

  - In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames. (CVE-2022-25315)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the expat package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in     xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory).
    (CVE-2021-45960)

  - In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for     m_groupSize. (CVE-2021-46143)

  - addBinding in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow. (CVE-2022-22822)

  - build_model in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow. (CVE-2022-22823)

  - defineAttribute in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
    (CVE-2022-22824)

  - lookup in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow. (CVE-2022-22825)

  - nextScaffoldPart in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
    (CVE-2022-22826)

  - storeAtts in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow. (CVE-2022-22827)

  - Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with     a nonzero XML_CONTEXT_BYTES. (CVE-2022-23852)

  - Expat (aka libexpat) before 2.4.4 has an integer overflow in the doProlog function. (CVE-2022-23990)

  - xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks     for whether a UTF-8 character is valid in a certain context. (CVE-2022-25235)

  - xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters     into namespace URIs. (CVE-2022-25236)

  - In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large     nesting depth in the DTD element. (CVE-2022-25313)

  - In Expat (aka libexpat) before 2.4.5, there is an integer overflow in copyString. (CVE-2022-25314)

  - In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames. (CVE-2022-25315)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the expat packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in     xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory).
    (CVE-2021-45960)

  - In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for     m_groupSize. (CVE-2021-46143)

  - addBinding in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow. (CVE-2022-22822)

  - build_model in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow. (CVE-2022-22823)

  - defineAttribute in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
    (CVE-2022-22824)

  - lookup in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow. (CVE-2022-22825)

  - nextScaffoldPart in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
    (CVE-2022-22826)

  - storeAtts in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow. (CVE-2022-22827)

  - Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with     a nonzero XML_CONTEXT_BYTES. (CVE-2022-23852)

  - Expat (aka libexpat) before 2.4.4 has an integer overflow in the doProlog function. (CVE-2022-23990)

  - xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks     for whether a UTF-8 character is valid in a certain context. (CVE-2022-25235)

  - xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters     into namespace URIs. (CVE-2022-25236)

  - In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large     nesting depth in the DTD element. (CVE-2022-25313)

  - In Expat (aka libexpat) before 2.4.5, there is an integer overflow in copyString. (CVE-2022-25314)

  - In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames. (CVE-2022-25315)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2022:5314 advisory.

  - In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large     nesting depth in the DTD element. (CVE-2022-25313)

  - In Expat (aka libexpat) before 2.4.5, there is an integer overflow in copyString. (CVE-2022-25314)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2022:5244 advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the expat packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large     nesting depth in the DTD element. (CVE-2022-25313)

  - In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames. (CVE-2022-25315)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large     nesting depth in the DTD element. (CVE-2022-25313)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Published	Updated	Severity
178871	EulerOS Virtualization 3.0.6.6 : expat (EulerOS-SA-2023-2422)	Nessus	Huawei Local Security Checks	7/26/2023	7/26/2023	critical
158270	Debian DSA-5085-1 : expat - security update	Nessus	Debian Local Security Checks	2/23/2022	11/7/2023	critical
158676	Debian DLA-2935-1 : expat - LTS security update	Nessus	Debian Local Security Checks	3/7/2022	11/6/2023	critical
161617	Tenable Nessus 8.x < 8.15.5 Third-Party Vulnerabilities (TNS-2022-12)	Nessus	Misc.	5/27/2022	10/26/2023	critical
158601	SUSE SLES12 Security Update : expat (SUSE-SU-2022:0698-1)	Nessus	SuSE Local Security Checks	3/5/2022	7/14/2023	critical
158789	Ubuntu 16.04 ESM / 18.04 LTS / 20.04 LTS : Expat vulnerabilities and regression (USN-5320-1)	Nessus	Ubuntu Local Security Checks	3/10/2022	8/29/2024	critical
161870	EulerOS 2.0 SP10 : expat (EulerOS-SA-2022-1786)	Nessus	Huawei Local Security Checks	6/6/2022	10/26/2023	critical
163220	EulerOS Virtualization 2.10.0 : expat (EulerOS-SA-2022-2022)	Nessus	Huawei Local Security Checks	7/15/2022	10/17/2023	critical
165976	EulerOS Virtualization 3.0.6.0 : expat (EulerOS-SA-2022-2555)	Nessus	Huawei Local Security Checks	10/10/2022	10/10/2023	critical
163349	AlmaLinux 8 : expat (5314) (ALSA-2022:5314)	Nessus	Alma Linux Local Security Checks	7/21/2022	7/21/2022	high
167709	AlmaLinux 9 : expat (ALSA-2022:5244)	Nessus	Alma Linux Local Security Checks	11/16/2022	11/17/2022	high
177008	EulerOS 2.0 SP5 : expat (EulerOS-SA-2023-2143)	Nessus	Huawei Local Security Checks	6/9/2023	6/9/2023	critical
224493	Linux Distros Unpatched Vulnerability : CVE-2022-25313	Nessus	Misc.	3/5/2025	3/5/2025	medium

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