VDB-113952 · CVE-2018-7570 · Nessus 118337

GNU binutils 2.30 libbfd elf.c assign_file_positions_for_non_load_sections 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.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in GNU binutils 2.30. It has been declared as problematic. This vulnerability affects the function assign_file_positions_for_non_load_sections of the file elf.c of the component libbfd. The manipulation results in null pointer dereference. This vulnerability is reported as CVE-2018-7570. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in GNU binutils 2.30 (Programming Tool Software). Affected is the function assign_file_positions_for_non_load_sections of the file elf.c of the component libbfd. 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 assign_file_positions_for_non_load_sections function in elf.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.30, allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an ELF file with a RELRO segment that lacks a matching LOAD segment, as demonstrated by objcopy.

The bug was discovered 02/23/2018. The weakness was disclosed 02/28/2018 (Website). The advisory is shared for download at sourceware.org. This vulnerability is traded as CVE-2018-7570 since 02/28/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 118337 (openSUSE Security Update : binutils (openSUSE-2018-1222)), 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 171846 (OpenSUSE Security Update for binutils (openSUSE-SU-2018:3323-1)).

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 vulnerability database at Tenable (118337). The entries VDB-108725, VDB-109436, VDB-109437 and VDB-109439 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Programming Tool Software

Vendor

Name

binutils

Version

2.30

License

open-source

Website

Vendor: https://www.gnu.org/

CPE 2.3info

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CPE 2.2info

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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: 🔍
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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: 118337
Nessus Name: openSUSE Security Update : binutils (openSUSE-2018-1222)
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: 🔍

Patch: 01f7e10cf2dcf403462b2feed06c43135651556d

Timelineinfo

02/23/2018 🔍
02/28/2018 +5 days 🔍
02/28/2018 +0 days 🔍
02/28/2018 +0 days 🔍
03/01/2018 +1 days 🔍
10/23/2018 +236 days 🔍
10/24/2018 +1 days 🔍
09/04/2024 +2142 days 🔍