GNU binutils 2.32 libbfd dwarf2.c _bfd_dwarf2_find_nearest_line File Descriptor integer overflow

Summaryinfo

A vulnerability marked as critical has been reported in GNU binutils 2.32. This affects the function _bfd_dwarf2_find_nearest_line of the file dwarf2.c of the component libbfd. Performing a manipulation as part of File Descriptor results in integer overflow. This vulnerability was named CVE-2019-17451. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability classified as critical has been found in GNU binutils 2.32 (Programming Tool Software). This affects the function _bfd_dwarf2_find_nearest_line of the file dwarf2.c of the component libbfd. The manipulation as part of a File Descriptor leads to a integer overflow vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.32. It is an integer overflow leading to a SEGV in _bfd_dwarf2_find_nearest_line in dwarf2.c, as demonstrated by nm.

The weakness was presented 10/10/2019 (Website). It is possible to read the advisory at security.gentoo.org. This vulnerability is uniquely identified as CVE-2019-17451 since 10/10/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 236727 (Alibaba Cloud Linux 3 : 0120: binutils (ALINUX3-SA-2022:0120)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (236727). See VDB-143342 for similar entry. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Programming Tool Software

Vendor

• GNU

Name

• binutils

Version

• 2.32

License

• open-source

Website

• Vendor: https://www.gnu.org/

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