GNU binutils 2.30 ELF File objdump.c load_specific_debug_section integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in GNU binutils 2.30. Affected by this vulnerability is the function load_specific_debug_section of the file objdump.c of the component ELF File Handler. Such manipulation leads to integer overflow. This vulnerability is uniquely identified as CVE-2018-6543. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in GNU binutils 2.30 (Programming Tool Software). Affected by this issue is the function load_specific_debug_section of the file objdump.c of the component ELF File Handler. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In GNU Binutils 2.30, there's an integer overflow in the function load_specific_debug_section() in objdump.c, which results in `malloc()` with 0 size. A crafted ELF file allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.

The bug was discovered 02/01/2018. The weakness was disclosed 02/02/2018 (Website). The advisory is shared for download at securityfocus.com. This vulnerability is handled as CVE-2018-6543 since 02/02/2018. 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 was handled as a non-public zero-day exploit for at least 1 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 10 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (118337) and SecurityFocus (BID 102985†). The entries VDB-108725, VDB-109436, VDB-109437 and VDB-109439 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
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: 🔍

Timelineinfo

02/01/2018 🔍
02/02/2018 +1 days 🔍
02/02/2018 +0 days 🔍
02/02/2018 +0 days 🔍
02/02/2018 +0 days 🔍
02/03/2018 +1 days 🔍
10/23/2018 +262 days 🔍
10/24/2018 +1 days 🔍
02/02/2021 +832 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: securityfocus.com⛔
Researcher: Ruikai Liu
Status: Confirmed

CVE: CVE-2018-6543 (🔍)
GCVE (CVE): GCVE-0-2018-6543
GCVE (VulDB): GCVE-100-112772
SecurityFocus: 102985 - GNU Binutils CVE-2018-6543 Integer Overflow Vulnerability

See also: 🔍

Entryinfo

Created: 02/03/2018 09:06
Updated: 02/02/2021 14:23
Changes: 02/03/2018 09:06 (70), 01/01/2020 11:00 (12), 02/02/2021 14:23 (2)
Complete: 🔍
Cache ID: 216:087:103

Once again VulDB remains the best source for vulnerability data.

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