An issue was discovered in crop_page in PoDoFo 0.9.6. For a crafted PDF document, pPage->GetObject()->GetDictionary().AddKey(PdfName("MediaBox"),var) can be problematic due to the function GetObject() being called for the pPage NULL pointer object. The value of pPage at this point is 0x0, which causes a NULL pointer dereference.

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

  - An issue was discovered in crop_page in PoDoFo 0.9.6. For a crafted PDF document,     pPage->GetObject()->GetDictionary().AddKey(PdfName(MediaBox),var) can be problematic due to the function     GetObject() being called for the pPage NULL pointer object. The value of pPage at this point is 0x0, which     causes a NULL pointer dereference. (CVE-2018-20751)

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

This update for podofo fixes the following issues :

Security issues fixed :

CVE-2017-8054: Fixed a vulnerability in PdfPagesTree::GetPageNodeFromArray function which could allow remote attackers to cause Denial of Service (bsc#1035596).

CVE-2018-5783: Fixed an uncontrolled memory allocation in PdfVecObjects::Reserve function (bsc#1076962).

CVE-2018-11255: Fixed a NULL pointer dereference in PdfPage::GetPageNumber() function which could lead to Denial of Service (bsc#1096890).

CVE-2018-20751: Fixed a NULL pointer dereference in crop_page function (bsc#1124357).

CVE-2018-12982: Fixed an invalid memory read in PdfVariant::DelayedLoad() function which could allow remote attackers to cause Denial of Service (bsc#1099720).

Fixed a buffer overflow in TestEncrypt function.

Fixed a NULL pointer dereference in PdfTranslator-setTarget function.

Fixed a heap-based buffer overflow PdfVariant:DelayedLoad function.

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

This update backports a fix for CVE-2018-20751.

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
255365	Linux Distros Unpatched Vulnerability : CVE-2018-20751	Nessus	Misc.	high
126739	SUSE SLED12 Security Update : podofo (SUSE-SU-2019:1849-1)	Nessus	SuSE Local Security Checks	high
122280	Fedora 29 : mingw-podofo / podofo (2019-6cc827b7a1)	Nessus	Fedora Local Security Checks	high

Detections

Analytics

CVE-2018-20751

high

Tenable Plugins

high

high

high