GNU binutils 2.30 libbfd aoutx.h swap_std_reloc_in ELF File null pointer dereference

CVSS Meta Temp Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in GNU binutils 2.30. This issue affects the function swap_std_reloc_in of the file aoutx.h of the component libbfd. The manipulation as part of ELF File leads to null pointer dereference. This vulnerability is documented as CVE-2018-7642. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in GNU binutils 2.30 (Programming Tool Software). This issue affects the function swap_std_reloc_in of the file aoutx.h of the component libbfd. The manipulation as part of a ELF File 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:

The swap_std_reloc_in function in aoutx.h 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 (aout_32_swap_std_reloc_out NULL pointer dereference and application crash) via a crafted ELF file, as demonstrated by objcopy.

The bug was discovered 03/02/2018. The weakness was released 03/02/2018 (Website). The advisory is shared at sourceware.org. The identification of this vulnerability is CVE-2018-7642 since 03/02/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

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 237010 (Red Hat Update for binutils (RHSA-2018:3032)).

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 (118337) and SecurityFocus (BID 103077†). Entries connected to this vulnerability are available at VDB-108725, VDB-109436, VDB-109437 and VDB-109439. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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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: 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: 116acb2c268c89c89186673a7c92620d21825b25

Timelineinfo

02/17/2018 🔍
03/02/2018 +13 days 🔍
03/02/2018 +0 days 🔍
03/02/2018 +0 days 🔍
03/02/2018 +0 days 🔍
03/03/2018 +1 days 🔍
10/23/2018 +234 days 🔍
10/24/2018 +1 days 🔍
02/16/2023 +1576 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: RHSA-2018:3032
Status: Confirmed

CVE: CVE-2018-7642 (🔍)
GCVE (CVE): GCVE-0-2018-7642
GCVE (VulDB): GCVE-100-114041
SecurityFocus: 103077 - GNU Binutils CVE-2018-7208 Remote Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 03/03/2018 10:09
Updated: 02/16/2023 17:50
Changes: 03/03/2018 10:09 (69), 01/10/2020 10:17 (12), 02/16/2023 17:50 (5)
Complete: 🔍
Cache ID: 216::103

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

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