The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2025-2673 advisory.

    - Fix CVE-2024-56171  [Orabug: 37694105]
    - Fix CVE-2025-24928  [Orabug: 37694105]
    - Fix CVE-2016-4658 (#1966916)
    - Fix CVE-2019-19956 (#1793000)
    - Fix CVE-2019-20388 (#1810057)
    - Fix CVE-2020-7595 (#1810073)
    - Fix CVE-2015-8035 (#1595697)
    - Fix CVE-2018-14404 (#1602817)
    - Fix CVE-2017-15412 (#1729857)
    - Fix CVE-2016-5131 (#1714050)
    - Fix CVE-2017-18258 (#1579211)
    - Fix CVE-2018-1456 (#1622715)
    - Heap-based buffer overread in xmlNextChar (CVE-2016-1762)
    - Bug 763071: Heap-buffer-overflow in xmlStrncat <https://bugzilla.gnome.org/show_bug.cgi?id=763071>     (CVE-2016-1834)
    - Bug 757711: Heap-buffer-overflow in xmlFAParsePosCharGroup     <https://bugzilla.gnome.org/show_bug.cgi?id=757711> (CVE-2016-1840)
    - Bug 758588: Heap-based buffer overread in xmlParserPrintFileContextInternal     <https://bugzilla.gnome.org/show_bug.cgi?id=758588> (CVE-2016-1838)
    - Bug 758605: Heap-based buffer overread in xmlDictAddString     <https://bugzilla.gnome.org/show_bug.cgi?id=758605> (CVE-2016-1839)
    - Bug 759398: Heap use-after-free in xmlDictComputeFastKey     <https://bugzilla.gnome.org/show_bug.cgi?id=759398> (CVE-2016-1836)
    - Fix inappropriate fetch of entities content (CVE-2016-4449)
    - Heap use-after-free in htmlParsePubidLiteral and htmlParseSystemiteral (CVE-2016-1837)
    - Heap use-after-free in xmlSAX2AttributeNs (CVE-2016-1835)
    - Heap-based buffer-underreads due to xmlParseName (CVE-2016-4447)
    - Heap-based buffer overread in htmlCurrentChar (CVE-2016-1833)
    - Add missing increments of recursion depth counter to XML parser. (CVE-2016-3705)
    - Avoid building recursive entities (CVE-2016-3627)
    - Fix some format string warnings with possible format string vulnerability (CVE-2016-4448)
    - More format string warnings with possible format string vulnerability (CVE-2016-4448)
    - CVE-2015-7941 Stop parsing on entities boundaries errors
    - CVE-2015-7941 Cleanup conditional section error handling
    - CVE-2015-8317 Fail parsing early on if encoding conversion failed
    - CVE-2015-7942 Another variation of overflow in Conditional sections
    - CVE-2015-7942 Fix an error in previous Conditional section patch
    - CVE-2015-7498 Avoid processing entities after encoding conversion failures
    - CVE-2015-7497 Avoid an heap buffer overflow in xmlDictComputeFastQKey
    - CVE-2015-5312 Another entity expansion issue
    - CVE-2015-7499 Add xmlHaltParser() to stop the parser
    - CVE-2015-7499 Detect incoherency on GROW
    - CVE-2015-7500 Fix memory access error due to incorrect entities boundaries
    - CVE-2015-8242 Buffer overead with HTML parser in push mode
    - CVE-2015-1819 Enforce the reader to run in constant memory
    - Fix missing entities after CVE-2014-3660 fix
    - CVE-2014-0191 Do not fetch external parameter entities (rhbz#1195650)
    - Fix regressions introduced by CVE-2014-0191 patch
    - CVE-2014-3660 denial of service via recursive entity expansion (rhbz#1149087)
    - fix a double free in XPath CVE-2010-4494 bug 665965
    - two patches for parsing problems CVE-2009-2414 and CVE-2009-2416
    - two patches for size overflows problems CVE-2008-4225 and CVE-2008-4226

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

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

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2025:2679 advisory.

    * libxml2: Use-After-Free in libxml2 (CVE-2024-56171)

    * libxml2: Stack-based buffer overflow in xmlSnprintfElements of libxml2 (CVE-2025-24928)

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

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

The Rocky Linux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ ciqsa-2026_1130 advisory.

    This advisory aggregates security fixes for the libxml2 SRPM in CIQ LTS 9.2. It addresses 2 CVEs:
    CVE-2025-24928, CVE-2024-56171.

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

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

The Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-2025_2679 advisory.

    * libxml2: Use-After-Free in libxml2 (CVE-2024-56171)

    * libxml2: Stack-based buffer overflow in xmlSnprintfElements of libxml2 (CVE-2025-24928)

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

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

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4064 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-4064-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                         Tobias Frost     February 22, 2025                             https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : libxml2     Version        : 2.9.10+dfsg-6.7+deb11u6     CVE ID         : CVE-2022-49043 CVE-2023-39615 CVE-2023-45322 CVE-2024-25062                      CVE-2024-56171 CVE-2025-24928 CVE-2025-27113     Debian Bug     : 1051230 1053629 1063234 1094238 1098320 1098321 1098322

    Multiple vulnerabilities have been found in libxml2, a library providing     support to read, modify and write XML and HTML files. These     vulnerabilities could potentially lead to denial of servie or other     unintended behaviors.

    CVE-2022-49043

        xmlXIncludeAddNode in xinclude.c in libxml2 before 2.11.0 has a         use-after-free.

    CVE-2023-39615

        libxml2 v2.11.0 was discovered to contain an out-of-bounds read via         the xmlSAX2StartElement() function at /libxml2/SAX2.c. This         vulnerability allows attackers to cause a Denial of Service (DoS)         via supplying a crafted XML file. NOTE: the vendor's position is         that the product does not support the legacy SAX1 interface with         custom callbacks; there is a crash even without crafted input.

    CVE-2023-45322

        libxml2 through 2.11.5 has a use-after-free that can only occur         after a certain memory allocation fails. This occurs in         xmlUnlinkNode in tree.c. NOTE: the vendor's position is I don't         think these issues are critical enough to warrant a CVE ID ...
        because an attacker typically can't control when memory allocations         fail.

    CVE-2024-25062

        An issue was discovered in libxml2 before 2.11.7 and 2.12.x before         2.12.5. When using the XML Reader interface with DTD validation and         XInclude expansion enabled, processing crafted XML documents can         lead to an xmlValidatePopElement use-after-free.

    CVE-2024-56171

        libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a use-after-free         in xmlSchemaIDCFillNodeTables and xmlSchemaBubbleIDCNodeTables in         xmlschemas.c. To exploit this, a crafted XML document must be         validated against an XML schema with certain identity constraints,         or a crafted XML schema must be used.

    CVE-2025-24928

        libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a stack-based         buffer overflow in xmlSnprintfElements in valid.c. To exploit this,         DTD validation must occur for an untrusted document or untrusted         DTD. NOTE: this is similar to CVE-2017-9047.

    CVE-2025-27113

        libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a NULL pointer         dereference in xmlPatMatch in pattern.c.

    For Debian 11 bullseye, these problems have been fixed in version     2.9.10+dfsg-6.7+deb11u6.

    We recommend that you upgrade your libxml2 packages.

    For the detailed security status of libxml2 please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/libxml2

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS     Attachment:
    signature.asc     Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian 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 its self-reported version, the Tenable Nessus application running on the remote host is prior to 10.8.4. It is, therefore, affected by multiple vulnerabilities as referenced in the TNS-2025-05 advisory.

  - libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a NULL pointer dereference in xmlPatMatch in     pattern.c. (CVE-2025-27113)

  - In libxml2 2.11 before 2.11.9, 2.12 before 2.12.9, and 2.13 before 2.13.3, the SAX parser can produce     events for external entities even if custom SAX handlers try to override entity content (by setting     checked). This makes classic XXE attacks possible. (CVE-2024-40896)

  - An issue was discovered in libexpat before 2.6.4. There is a crash within the XML_ResumeParser function     because XML_StopParser can stop/suspend an unstarted parser. (CVE-2024-50602)

  - libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a use-after-free in xmlSchemaIDCFillNodeTables and     xmlSchemaBubbleIDCNodeTables in xmlschemas.c. To exploit this, a crafted XML document must be validated     against an XML schema with certain identity constraints, or a crafted XML schema must be used.
    (CVE-2024-56171)

  - A stack overflow vulnerability exists in the libexpat library due to the way it handles recursive entity     expansion in XML documents. When parsing an XML document with deeply nested entity references, libexpat     can be forced to recurse indefinitely, exhausting the stack space and causing a crash. This issue could     lead to denial of service (DoS) or, in some cases, exploitable memory corruption, depending on the     environment and library usage. (CVE-2024-8176)

  - libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a stack-based buffer overflow in xmlSnprintfElements     in valid.c. To exploit this, DTD validation must occur for an untrusted document or untrusted DTD. NOTE:
    this is similar to CVE-2017-9047. (CVE-2025-24928)

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

The remote NewStart CGSL host, running version MAIN 7.02, has libxml2 packages installed that are affected by multiple vulnerabilities:

  - In libxml2 before 2.13.8 and 2.14.x before 2.14.2, out-of-bounds memory access can occur in the Python API     (Python bindings) because of an incorrect return value. This occurs in xmlPythonFileRead and     xmlPythonFileReadRaw because of a difference between bytes and characters. (CVE-2025-32414)

  - libxml2 through 2.11.5 has a use-after-free that can only occur after a certain memory allocation fails.
    This occurs in xmlUnlinkNode in tree.c. NOTE: the vendor's position is I don't think these issues are     critical enough to warrant a CVE ID ... because an attacker typically can't control when memory     allocations fail. (CVE-2023-45322)

  - An issue was discovered in libxml2 before 2.11.7 and 2.12.x before 2.12.5. When using the XML Reader     interface with DTD validation and XInclude expansion enabled, processing crafted XML documents can lead to     an xmlValidatePopElement use-after-free. (CVE-2024-25062)

  - In libxml2 2.11 before 2.11.9, 2.12 before 2.12.9, and 2.13 before 2.13.3, the SAX parser can produce     events for external entities even if custom SAX handlers try to override entity content (by setting     checked). This makes classic XXE attacks possible. (CVE-2024-40896)

  - libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a use-after-free in xmlSchemaIDCFillNodeTables and     xmlSchemaBubbleIDCNodeTables in xmlschemas.c. To exploit this, a crafted XML document must be validated     against an XML schema with certain identity constraints, or a crafted XML schema must be used.
    (CVE-2024-56171)

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

ID	Name	Product	Family	Published	Updated	Severity
233181	Oracle Linux 7 : libxml2 (ELSA-2025-2673)	Nessus	Oracle Linux Local Security Checks	3/21/2025	9/11/2025	high
243070	RockyLinux 9 : libxml2 (RLSA-2025:2679)	Nessus	Rocky Linux Local Security Checks	7/30/2025	7/30/2025	high
357118	Rocky Linux 9.2 [CIQ] Security Update: libxml2 / libxml2-debuginfo / libxml2-debugsource / libxml2-devel / etc Multiple Vulnerabilities (ciqsa-2026_1130)	Nessus	Rocky Linux Local Security Checks	10/1/2026	10/1/2026	critical
357271	Rocky Linux 9 [CIQ] Security Update: libxml2 / libxml2-debuginfo / libxml2-debugsource / libxml2-devel / etc Multiple Vulnerabilities (crlsa-2025_2679)	Nessus	Rocky Linux Local Security Checks	10/1/2026	10/1/2026	critical
216663	Debian dla-4064 : libxml2 - security update	Nessus	Debian Local Security Checks	2/22/2025	10/17/2025	critical
234837	Tenable Nessus < 10.8.4 Multiple Vulnerabilities (TNS-2025-05)	Nessus	Misc.	4/25/2025	1/21/2026	high
242784	NewStart CGSL MAIN 7.02 : libxml2 Multiple Vulnerabilities (NS-SA-2025-0106)	Nessus	NewStart CGSL Local Security Checks	7/25/2025	7/25/2025	high

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