PoDoFo 0.9.5 PDF File base/PdfOutputStream.cpp Write Argument null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in PoDoFo 0.9.5. This vulnerability affects the function PdfMemoryOutputStream::Write of the file base/PdfOutputStream.cpp of the component PDF File Handler. The manipulation as part of Argument leads to null pointer dereference. This vulnerability is documented as CVE-2018-5308. The attack needs to be performed locally. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in PoDoFo 0.9.5 (Document Reader Software). This issue affects the function PdfMemoryOutputStream::Write of the file base/PdfOutputStream.cpp of the component PDF File Handler. The manipulation as part of a Argument leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

PoDoFo 0.9.5 does not properly validate memcpy arguments in the PdfMemoryOutputStream::Write function (base/PdfOutputStream.cpp). Remote attackers could leverage this vulnerability to cause a denial-of-service or possibly unspecified other impact via a crafted pdf file.

The bug was discovered 01/08/2018. The weakness was released 01/09/2018 by Agostino Sarubbo as Bug 1532390 as confirmed bug report (Bugzilla). The advisory is shared at bugzilla.redhat.com. The identification of this vulnerability is CVE-2018-5308 since 01/08/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 112081 (SUSE SLED12 Security Update : podofo (SUSE-SU-2018:2481-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 172000 (OpenSUSE Security Update for podofo (openSUSE-SU-2019:0066-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 9 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (112081) and SecurityFocus (BID 97296†). Entries connected to this vulnerability are available at VDB-97430, VDB-97431, VDB-97432 and VDB-97433. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 112081
Nessus Name: SUSE SLED12 Security Update : podofo (SUSE-SU-2018:2481-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

04/01/2017 🔍
01/08/2018 +282 days 🔍
01/08/2018 +0 days 🔍
01/09/2018 +1 days 🔍
01/09/2018 +0 days 🔍
01/09/2018 +0 days 🔍
08/22/2018 +225 days 🔍
08/23/2018 +1 days 🔍
05/26/2020 +642 days 🔍

Sourcesinfo

Advisory: Bug 1532390
Researcher: Agostino Sarubbo
Status: Confirmed

CVE: CVE-2018-5308 (🔍)
GCVE (CVE): GCVE-0-2018-5308
GCVE (VulDB): GCVE-100-111521
SecurityFocus: 97296 - podofo Null Pointer Dereference Denial of Service and Heap Based Buffer Overflow Vulnerabilities

See also: 🔍

Entryinfo

Created: 01/09/2018 15:01
Updated: 05/26/2020 21:16
Changes: 01/09/2018 15:01 (72), 05/26/2020 21:16 (13)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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