Poppler 0.59.0 FoFiTrueType.cc getCFFBlock null pointer dereference

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Poppler 0.59.0. The affected element is the function FoFiTrueType::getCFFBlock of the file FoFiTrueType.cc. The manipulation results in null pointer dereference. This vulnerability is reported as CVE-2017-14977. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Poppler 0.59.0 (Document Reader Software). It has been classified as problematic. Affected is the function FoFiTrueType::getCFFBlock of the file FoFiTrueType.cc. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. CVE summarizes:

The FoFiTrueType::getCFFBlock function in FoFiTrueType.cc in Poppler 0.59.0 has a NULL pointer dereference vulnerability due to lack of validation of a table pointer, which allows an attacker to launch a denial of service attack.

The bug was discovered 09/11/2017. The weakness was disclosed 10/02/2017 (Website). The advisory is available at bugs.freedesktop.org. This vulnerability is traded as CVE-2017-14977 since 10/01/2017. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 20 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 104153 (Fedora 25 : mingw-poppler (2017-6127ddb036)), 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 170482 (SUSE Enterprise Linux Security Update for poppler (SUSE-SU-2017:2952-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (104153) and SecurityFocus (BID 100690†). The entries VDB-106330, VDB-106331, VDB-106762 and VDB-106763 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 104153
Nessus Name: Fedora 25 : mingw-poppler (2017-6127ddb036)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for mingw-poppler FEDORA-2017-a0ffdf1fbd
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

09/07/2017 🔍
09/11/2017 +4 days 🔍
10/01/2017 +20 days 🔍
10/01/2017 +0 days 🔍
10/02/2017 +1 days 🔍
10/02/2017 +0 days 🔍
10/25/2017 +23 days 🔍
10/26/2017 +1 days 🔍
12/30/2022 +1891 days 🔍

Sourcesinfo

Advisory: FEDORA-2017-6127ddb036
Researcher: Rich Mirch.
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-14977 (🔍)
GCVE (CVE): GCVE-0-2017-14977
GCVE (VulDB): GCVE-100-107322

OVAL: 🔍

SecurityFocus: 100690 - IBM DB2 Multiple Local Privilege Escalation Vulnerabilities

See also: 🔍

Entryinfo

Created: 10/02/2017 10:27
Updated: 12/30/2022 14:22
Changes: 10/02/2017 10:27 (75), 05/26/2020 08:11 (7), 01/14/2021 19:50 (3), 12/30/2022 14:18 (3), 12/30/2022 14:22 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!