What’s Vulnerable › Vulnerabilities

CVE-2020-35493

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-01-04 · updated 2026-10-08
• Weakness: CWE-20

Description

A flaw exists in binutils in bfd/pef.c. An attacker who is able to submit a crafted PEF file to be parsed by objdump could cause a heap buffer overflow -> out-of-bounds read that could lead to an impact to application availability. This flaw affects binutils versions prior to 2.34.

Affected products

• Broadcom Brocade Fabric Operating System Firmware: all versions
• Fedoraproject Fedora: 32
• GNU Binutils: before 2.34 — fixed in 2.34
• NetApp Cloud Backup: all versions
• NetApp Hci Compute Node Firmware: all versions
• NetApp ONTAP Select Deploy administration utility: all versions
• NetApp Solidfire, Enterprise Sds & Hci Storage Node: all versions
• NetApp Solidfire & Hci Management Node: all versions

How to fix

Upgrade to a fixed version: GNU Binutils 2.34. Check the vendor advisory for mitigations.

References

• https://bugzilla.redhat.com/show_bug.cgi?id=1911437
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4KOK3QWSVOUJWJ54HVGIFWNLWQ5ZY4S6/
• https://security.gentoo.org/glsa/202107-24
• https://security.netapp.com/advisory/ntap-20210212-0007/
• https://bugzilla.redhat.com/show_bug.cgi?id=1911437
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4KOK3QWSVOUJWJ54HVGIFWNLWQ5ZY4S6/
• https://security.gentoo.org/glsa/202107-24
• https://security.netapp.com/advisory/ntap-20210212-0007/

Get alerted when CVE-2020-35493 or the next vulnerability affects your stack