GNU binutils 2.29.1 libbfd elf.c File Descriptor memory corruption

Summaryinfo

A vulnerability, which was classified as critical, has been found in GNU binutils 2.29.1. Affected by this issue is some unknown functionality of the file elf.c of the component libbfd. The manipulation as part of File Descriptor leads to memory corruption. This vulnerability is documented as CVE-2017-17080. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in GNU binutils 2.29.1 (Programming Tool Software) and classified as critical. This issue affects an unknown functionality of the file elf.c of the component libbfd. The manipulation as part of a File Descriptor leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

elf.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29.1, does not validate sizes of core notes, which allows remote attackers to cause a denial of service (bfd_getl32 heap-based buffer over-read and application crash) via a crafted object file, related to elfcore_grok_netbsd_procinfo, elfcore_grok_openbsd_procinfo, and elfcore_grok_nto_status.

The bug was discovered 11/30/2017. The weakness was released 11/30/2017 (Website). It is possible to read the advisory at sourceware.org. The identification of this vulnerability is CVE-2017-17080 since 11/30/2017. 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 scanner Nessus provides a plugin with the ID 119162 (GLSA-201811-17 : Binutils: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 years after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (119162). Entries connected to this vulnerability are available at VDB-107299, VDB-110175, VDB-110176 and VDB-110177. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Programming Tool Software

Vendor

• GNU

Name

• binutils

Version

• 2.29.1

License

• open-source

Website

• Vendor: https://www.gnu.org/

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

Discussion