XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in st_serial_stack. In the case (stackptr == stacksize - 1), the stack will NOT be expanded. Then the new value will be written at location (++stackptr), which equals stacksize and therefore falls just outside the allocated buffer. The bug can be observed when parsing an XML file with very deep element nesting

The remote openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20459-1 advisory.

    - CVE-2006-10002: heap buffer overflow in `parse_stream` when processing UTF-8 input streams     (bsc#1259901).
    - CVE-2006-10003: off-by-one heap buffer overflow in `st_serial_stack` (bsc#1259902).

Tenable has extracted the preceding description block directly from the SUSE 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 a package installed that is affected by multiple vulnerabilities as referenced in the dla-4522 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-4522-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                       Guilhem Moulin     April 04, 2026                                https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : libxml-parser-perl     Version        : 2.46-2+deb11u1     CVE ID         : CVE-2006-10003     Debian Bug     : 378412

    It was discovered that libxml-parser-perl, a Perl module for parsing XML     files, was prone to an off-by-one heap buffer overflow in `st_serial_stack()`.

    This update also includes a follow-up improvement change for     CVE-2006-10002 (buffer overwrite in `parse_stream()`.)

    For Debian 11 bullseye, these problems have been fixed in version     2.46-2+deb11u1.

    We recommend that you upgrade your libxml-parser-perl packages.

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

    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.

The remote SUSE Linux SLES12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1152-1 advisory.

    - CVE-2006-10002: heap buffer overflow in `parse_stream` when processing UTF-8 input streams     (bsc#1259901).
    - CVE-2006-10003: off-by-one heap buffer overflow in `st_serial_stack` (bsc#1259902).

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1153-1 advisory.

    - CVE-2006-10002: heap buffer overflow in `parse_stream` when processing UTF-8 input streams     (bsc#1259901).
    - CVE-2006-10003: off-by-one heap buffer overflow in `st_serial_stack` (bsc#1259902).

Tenable has extracted the preceding description block directly from the SUSE 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 Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-dcb80f8e23 advisory.

    2.51 bump - Fix CVE-2006-10002, CVE-2006-10003


Tenable has extracted the preceding description block directly from the Fedora 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 Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-b7182d65b7 advisory.

    2.51 bump - Fix CVE-2006-10002, CVE-2006-10003


Tenable has extracted the preceding description block directly from the Fedora 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 Fedora 45 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-7d5754535f advisory.

    Automatic update for perl-XML-Parser-2.51-1.fc45.

    ##### **Changelog**

    ```
    * Mon Mar 23 2026 Jitka Plesnikova <jplesnik@redhat.com> - 2.51-1
    - 2.51 bump (rhbz#2448965)
      - Fix CVE-2006-10002 (rhbz#2449269), CVE-2006-10003 (rhbz#2449278)

    ```

Tenable has extracted the preceding description block directly from the Fedora 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 Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in st_serial_stack. In     the case (stackptr == stacksize - 1), the stack will NOT be expanded. Then the new value will be written     at location (++stackptr), which equals stacksize and therefore falls just outside the allocated buffer.
    The bug can be observed when parsing an XML file with very deep element nesting (CVE-2006-10003)

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

ID	Name	Product	Family	Severity
305036	openSUSE 16 Security Update : perl-XML-Parser (openSUSE-SU-2026:20459-1)	Nessus	SuSE Local Security Checks	critical
305018	Debian dla-4522 : libxml-parser-perl - security update	Nessus	Debian Local Security Checks	critical
304494	SUSE SLES12 Security Update : perl-XML-Parser (SUSE-SU-2026:1152-1)	Nessus	SuSE Local Security Checks	critical
304482	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : perl-XML-Parser (SUSE-SU-2026:1153-1)	Nessus	SuSE Local Security Checks	critical
304035	Fedora 44 : perl-XML-Parser (2026-dcb80f8e23)	Nessus	Fedora Local Security Checks	critical
304026	Fedora 43 : perl-XML-Parser (2026-b7182d65b7)	Nessus	Fedora Local Security Checks	critical
303354	Fedora 45 : perl-XML-Parser (2026-7d5754535f)	Nessus	Fedora Local Security Checks	critical
303057	Linux Distros Unpatched Vulnerability : CVE-2006-10003	Nessus	Misc.	critical

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