PoDoFo 0.9.4 PdfVariant.h DelayedLoad null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in PoDoFo 0.9.4. Impacted is the function PoDoFo::PdfVariant::DelayedLoad of the file PdfVariant.h. Such manipulation leads to null pointer dereference. This vulnerability is referenced as CVE-2017-6847. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in PoDoFo 0.9.4 (Document Reader Software). It has been rated as problematic. Affected by this issue is the function PoDoFo::PdfVariant::DelayedLoad of the file PdfVariant.h. The manipulation with an unknown input 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 availability. CVE summarizes:

The PoDoFo::PdfVariant::DelayedLoad function in PdfVariant.h in PoDoFo 0.9.4 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted file.

The bug was discovered 03/15/2017. The weakness was published 03/15/2017 by Agostino Sarubbo (Website). The advisory is shared for download at blogs.gentoo.org. This vulnerability is handled as CVE-2017-6847 since 03/12/2017. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 100517 (Debian DLA-968-1 : libpodofo security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian 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 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (100517) and SecurityFocus (BID 97032†). Similar entries are available at VDB-97430, VDB-97431, VDB-97432 and VDB-97433. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

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

NVD Base Score: 5.5
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: 100517
Nessus Name: Debian DLA-968-1 : libpodofo security update
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

03/01/2017 🔍
03/12/2017 +11 days 🔍
03/15/2017 +3 days 🔍
03/15/2017 +0 days 🔍
03/15/2017 +0 days 🔍
03/16/2017 +1 days 🔍
05/30/2017 +75 days 🔍
05/31/2017 +1 days 🔍
09/09/2020 +1197 days 🔍

Sourcesinfo

Advisory: blogs.gentoo.org
Researcher: Agostino Sarubbo
Status: Confirmed

CVE: CVE-2017-6847 (🔍)
GCVE (CVE): GCVE-0-2017-6847
GCVE (VulDB): GCVE-100-98180
SecurityFocus: 97032 - podofo CVE-2017-5852 Denial of Service Vulnerability
OSVDB: - CVE-2017-6847 - PoDoFo - Denial of Service Issue

See also: 🔍

Entryinfo

Created: 03/16/2017 13:49
Updated: 09/09/2020 11:04
Changes: 03/16/2017 13:49 (67), 09/09/2020 11:04 (13)
Complete: 🔍
Cache ID: 216:3DE:103

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