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CVE-2020-35448

3.3 · LOW

An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.35.1.

Published Dec 27, 2020CWE-125EPSS 1.24%

Overview

CVE-2020-35448 is a low-severity vulnerability. It was published on December 27, 2020 and has a CVSS 3.1 base score of 3.3 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.35.1. A heap-based buffer over-read can occur in bfd_getl_signed_32 in libbfd.c because sh_entsize is not validated in _bfd_elf_slurp_secondary_reloc_section in elf.c.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refsecurity.gentoo.org/glsa/202107-24Refsecurity.netapp.com/advisory/ntap-20210129-0008/Refsourceware.org/bugzilla/show_bug.cgi?id=26574Refsourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=8642dafaef21aa6747cec01df1977e9c52eb4679Refsecurity.gentoo.org/glsa/202107-24Refsecurity.netapp.com/advisory/ntap-20210129-0008/Refsourceware.org/bugzilla/show_bug.cgi?id=26574Refsourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=8642dafaef21aa6747cec01df1977e9c52eb4679

How CyberStrike helps

Frequently asked questions

What is CVE-2020-35448?

CVE-2020-35448 is a low-severity vulnerability. It was published on December 27, 2020 and has a CVSS 3.1 base score of 3.3 (LOW).

How severe is CVE-2020-35448?

This vulnerability has a CVSS 3.1 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2020-35448?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-35448?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-35448 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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