PoDoFo 0.9.5 PdfDocument.cpp PdfDocument::Append null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability has been found in PoDoFo 0.9.5 and classified as problematic. This impacts the function PdfDocument::Append of the file PdfDocument.cpp. The manipulation leads to null pointer dereference. This vulnerability is referenced as CVE-2018-11256. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in PoDoFo 0.9.5 (Document Reader Software) and classified as problematic. This issue affects the function PdfDocument::Append of the file PdfDocument.cpp. 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. The summary by CVE is:

An issue was discovered in PoDoFo 0.9.5. The function PdfDocument::Append() in PdfDocument.cpp 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.

The bug was discovered 05/08/2018. The weakness was published 05/18/2018 by Agostino Sarubbo (Website). It is possible to read the advisory at bugzilla.redhat.com. The identification of this vulnerability is CVE-2018-11256 since 05/18/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 10 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 120503 (Fedora 29 : mingw-podofo / podofo (2018-6b9320d9c9)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 172074 (SUSE Enterprise Linux Security Update for podofo (SUSE-SU-2019:0393-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 8 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (120503) and SecurityFocus (BID 97296†). Similar entries are available at VDB-98178, VDB-99253, VDB-99254 and VDB-99255. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

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

NVD Base Score: 6.5
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: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 120503
Nessus Name: Fedora 29 : mingw-podofo / podofo (2018-6b9320d9c9)
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 🔍
05/08/2018 +402 days 🔍
05/18/2018 +9 days 🔍
05/18/2018 +0 days 🔍
05/18/2018 +0 days 🔍
05/19/2018 +1 days 🔍
12/25/2018 +220 days 🔍
01/03/2019 +9 days 🔍
03/14/2023 +1531 days 🔍

Sourcesinfo

Advisory: FEDORA-2018-6b9320d9c9
Researcher: Agostino Sarubbo
Status: Confirmed

CVE: CVE-2018-11256 (🔍)
GCVE (CVE): GCVE-0-2018-11256
GCVE (VulDB): GCVE-100-117995
SecurityFocus: 97296 - podofo Null Pointer Dereference Denial of Service and Heap Based Buffer Overflow Vulnerabilities

See also: 🔍

Entryinfo

Created: 05/19/2018 09:13
Updated: 03/14/2023 12:00
Changes: 05/19/2018 09:13 (67), 02/07/2020 13:28 (10), 03/14/2023 12:00 (4)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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