What’s Vulnerable › Vulnerabilities

CVE-2021-41771

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-11-08 · updated 2026-06-17
• Weakness: CWE-119

Description

ImportedSymbols in debug/macho (for Open or OpenFat) in Go before 1.16.10 and 1.17.x before 1.17.3 Accesses a Memory Location After the End of a Buffer, aka an out-of-bounds slice situation.

Affected products

• Debian Linux: 9.0
• Fedoraproject Fedora: 34, 35
• Go: before 1.16.10; from 1.17.0 before 1.17.3 — fixed in 1.16.10, 1.17.3

How to fix

Upgrade to a fixed version: Go 1.16.10, 1.17.3. Check the vendor advisory for mitigations.

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-744259.pdf
• https://groups.google.com/g/golang-announce/c/0fM21h43arc
• https://lists.debian.org/debian-lts-announce/2022/01/msg00016.html
• https://lists.debian.org/debian-lts-announce/2022/01/msg00017.html
• https://lists.debian.org/debian-lts-announce/2023/04/msg00021.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OFS3M3OFB24SWPTIAPARKGPUMQVUY6Z/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ON7BQRRJZBOR5TJHURBAB3WLF4YXFC6Z/
• https://security.gentoo.org/glsa/202208-02
• https://security.netapp.com/advisory/ntap-20211210-0003/
• https://www.oracle.com/security-alerts/cpujul2022.html
• https://cert-portal.siemens.com/productcert/pdf/ssa-744259.pdf
• https://groups.google.com/g/golang-announce/c/0fM21h43arc

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