A stack-based buffer over-read in the PdfEncryptMD5Base::ComputeEncryptionKey() function in PdfEncrypt.cpp in PoDoFo 0.9.6-rc1 could be leveraged by remote attackers to cause a denial-of-service via a crafted pdf file.

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

  - A stack-based buffer over-read in the PdfEncryptMD5Base::ComputeEncryptionKey() function in PdfEncrypt.cpp     in PoDoFo 0.9.6-rc1 could be leveraged by remote attackers to cause a denial-of-service via a crafted pdf     file. (CVE-2018-12983)

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

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7217-1 advisory.

    It was discovered that the PoDoFo library could dereference a NULL pointer when getting the number of     pages in a PDF. If a user or application were tricked into opening a crafted PDF file, an attacker could     possibly use this issue to cause a denial of service. This issue only affected

    Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2018-11255)

    It was discovered that PoDoFo library incorrectly handled memory when computing an encryption key, which     could lead to a buffer overflow. If a user or application were tricked into opening a crafted PDF file, an     attacker could possibly use this issue to cause a denial of service. (CVE-2018-12983)

    It was discovered that the PoDoFo library incorrectly handled memory allocation. If a user or application     were tricked into opening a crafted PDF file, an attacker could possibly use this issue to cause a denial     of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS.
    (CVE-2018-20797)

    It was discovered that the PoDoFo library did not properly validate memcpy arguments. If a user or     application were tricked into opening a crafted PDF file, an attacker could possibly use this issue to     cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 14.04 LTS and Ubuntu     16.04 LTS. (CVE-2018-5308)

    It was discovered that the PoDoFo library incorrectly handled memory in the GetNextToken function, which     could lead to a buffer overflow. If a user or application were tricked into opening a crafted PDF file, an     attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04     LTS. (CVE-2017-5886)

    It was discovered that the PoDoFo library could enter an infinite loop, which could lead to a stack     overflow. If a user or application were tricked into opening a crafted PDF file, an attacker could     possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected     Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2018-8002, CVE-2020-18971, CVE-2021-30471, CVE-2021-30470)

    It was discovered that the PoDoFo library incorrectly handled memory allocation due to nInitialSize not     being validated. If a user or application were tricked into opening a crafted PDF file, an attacker could     possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu     16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2019-10723)

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.

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

  - Heap-based buffer overflow in the PdfParser::ReadObjects function in base/PdfParser.cpp in PoDoFo 0.9.5
    allows remote attackers to cause a denial of service (application crash) or possibly have unspecified
    other impact via vectors related to m_offsets.size. (CVE-2017-8378)

  - The PoDoFo::PdfXObject::PdfXObject function in PdfXObject.cpp in PoDoFo 0.9.5 allows remote attackers to
    cause a denial of service (NULL pointer dereference) via a crafted file. (CVE-2017-6848)

  - The PoDoFo::PdfPainter::ExpandTabs function in PdfPainter.cpp in PoDoFo 0.9.5 allows remote attackers to
    cause a denial of service (heap-based buffer over-read and application crash) via a crafted PDF document.
    (CVE-2017-7378)

  - The PoDoFo::PdfSimpleEncoding::ConvertToEncoding function in PdfEncoding.cpp in PoDoFo 0.9.5 allows remote
    attackers to cause a denial of service (heap-based buffer over-read and application crash) via a crafted
    PDF document. (CVE-2017-7379)

  - The doc/PdfPage.cpp:614:20 code in PoDoFo 0.9.5 allows remote attackers to cause a denial of service (NULL
    pointer dereference and application crash) via a crafted PDF document. (CVE-2017-7380)

The remote openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE- SU-2022:3833-1 advisory.

    - CVE-2018-12983: Fixed a stack overrun (bsc#1099719).

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

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 SLED12 / SLED_SAP12 / SLES12 / SLES_SAP12 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2022:3385-1 advisory.

    - CVE-2018-12983: Fixed a stack overrun (bsc#1099719).

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

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

This update applies a proposed fix for CVE-2018-12983.

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

ID	Name	Product	Family	Severity
222090	Linux Distros Unpatched Vulnerability : CVE-2018-12983	Nessus	Misc.	high
214391	Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS : PoDoFo library vulnerabilities (USN-7217-1)	Nessus	Ubuntu Local Security Checks	high
406434	Alpine: multiple podofo packages: security update to 0.9.6-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	critical
406434	Alpine: multiple podofo packages: security update to 0.9.6-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	critical
170216	openSUSE 15 Security Update : podofo (SUSE-SU-2022:3833-1)	Nessus	SuSE Local Security Checks	high
165493	SUSE SLED12 / SLES12 Security Update : podofo (SUSE-SU-2022:3385-1)	Nessus	SuSE Local Security Checks	high
138404	Fedora 31 : mingw-podofo / podofo (2020-71e2092ebc)	Nessus	Fedora Local Security Checks	high
138400	Fedora 32 : mingw-podofo / podofo (2020-2d80e03190)	Nessus	Fedora Local Security Checks	high

Detections

Analytics

CVE-2018-12983

high

Tenable Plugins

high

high

critical

critical

high

high

high

high