Skip to content
Fencer Vulns
high 7.5

CVE-2021-41771 json

Panic on invalid symbol tables in debug/macho

published 2021-11-08 5 y ago modified 2026-10-16 23 d ago also BIT-golang-2021-41771 , EUVD-2021-28779 , GO-2021-0263

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.7%
EPSS 4.7% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

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.

Patch / fix

  • bitnami golang 1.16.10, 1.17.3
  • go stdlib 1.16.10, 1.17.3
  • golang go 1.16.10, 1.17.3
  • golang-1.15 Debian 11 1.15.15-1~deb11u2

debian advisories DEBIAN-CVE-2021-41771

  • delve RHEL 8 1.7.2-1.module+el8.6.0+12972+ebab5911
  • golang RHEL 8 1.17.7-1.module+el8.6.0+14297+32a15e19
  • go-toolset RHEL 8 1.17.7-1.module+el8.6.0+14297+32a15e19
  • golang-bin RHEL 8 1.17.7-1.module+el8.6.0+14297+32a15e19
  • golang-src RHEL 8 1.17.7-1.module+el8.6.0+14297+32a15e19
  • golang-misc RHEL 8 1.17.7-1.module+el8.6.0+14297+32a15e19
  • golang-race RHEL 8 1.17.7-1.module+el8.6.0+14297+32a15e19
  • golang-tests RHEL 8 1.17.7-1.module+el8.6.0+14297+32a15e19

red hat advisories RHSA-2022:1819RHSA-2022:1745

  • go1.16 SLE Module for Development Tools 15 SP3, SLE Module for Development Tools 15 SP2 1.16.10-1.32.1
  • go1.17 SLE Module for Development Tools 15 SP3, SLE Module for Development Tools 15 SP2 1.17.3-1.9.1

suse advisories SUSE-SU-2021:3834-1SUSE-SU-2021:3833-1

  • go1.16 openSUSE Tumbleweed 1.16.10-1.1
  • go1.17 openSUSE Tumbleweed 1.17.3-1.1
  • go1.16 openSUSE Leap 15.2 1.16.10-lp152.17.1
  • go1.16 openSUSE Leap 15.3 1.16.10-1.32.1
  • go1.17 openSUSE Leap 15.3 1.17.3-1.9.1

opensuse advisories openSUSE-SU-2024:11609-1openSUSE-SU-2024:11610-1openSUSE-SU-2021:1539-1openSUSE-SU-2021:3834-1openSUSE-SU-2021:3833-1

  • delve AlmaLinux 8 1.7.2-1.module_el8.6.0+2736+ec10aba8
  • golang AlmaLinux 8 1.17.7-1.module_el8.6.0+2736+ec10aba8
  • go-toolset AlmaLinux 8 1.17.7-1.module_el8.6.0+2736+ec10aba8
  • golang-bin AlmaLinux 8 1.17.7-1.module_el8.6.0+2736+ec10aba8
  • golang-src AlmaLinux 8 1.17.7-1.module_el8.6.0+2736+ec10aba8
  • golang-misc AlmaLinux 8 1.17.7-1.module_el8.6.0+2736+ec10aba8
  • golang-race AlmaLinux 8 1.17.7-1.module_el8.6.0+2736+ec10aba8
  • golang-tests AlmaLinux 8 1.17.7-1.module_el8.6.0+2736+ec10aba8

almalinux advisories ALSA-2022:1819

  • delve Rocky Linux 8 1.7.2-1.module+el8.6.0+824+8e984c20
  • golang Rocky Linux 8 1.17.7-1.module+el8.6.0+824+8e984c20
  • go-toolset Rocky Linux 8 1.17.7-1.module+el8.6.0+824+8e984c20

rocky linux advisories RLSA-2022:1819

  • go Alpine 3.14 1.16.10-r0
  • go Alpine 3.24, Alpine 3.23, Alpine 3.22 +7 more 1.17.3-r0

alpine advisories ALPINE-CVE-2021-41771

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • golang CBL-Mariner 2.0 1.17.8-1

azure linux advisories AZL-6451

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

  • go Arch Linux 2:1.17.3-1

arch linux advisories AVG-2527

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-41771 updated cvss 7.5

golang: debug/macho: invalid dynamic symbol table command can cause panic

  • Red Hat OpenShift Serverless cli, knative-eventing knative-eventing
    affected: no fix available
  • Red Hat Ceph Storage 2 golang, grafana, golang-bin, golang-src Red Hat Ceph Storage 3 golang, grafana, golang-bin, golang-src, grafana-container, prometheus-node-exporter Red Hat Enterprise Linux 7 golang, golang-bin, golang-src, golang-misc, golang-tests
    affected: no fix planned “Out of support scope”
  • Red Hat Service Telemetry Framework 1.3 for RHEL 8 stf/sg-core-rhel8
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux AppStream (v. 8) delve 1.7.2-1.module+el8.6.0+12972+ebab5911, golang 1.17.7-1.module+el8.6.0+14297+32a15e19, go-toolset 1.17.7-1.module+el8.6.0+14297+32a15e19, golang-bin 1.17.7-1.module+el8.6.0+14297+32a15e19, golang-src 1.17.7-1.module+el8.6.0+14297+32a15e19, golang-misc 1.17.7-1.module+el8.6.0+14297+32a15e19, +2 more
    fixed: vendor fix RHSA-2022:1819
  • Red Hat Migration Toolkit 1.7 rhmtc/openshift-migration-must-gather-rhel8 v1.7.1-3
    fixed: vendor fix RHSA-2022:1734
  • Red Hat OpenShift Serverless 1.0 openshift-serverless-clients 1.1.0-2.el8
    fixed: vendor fix RHSA-2022:1745
  • Red Hat OpenShift Serverless 1.22 openshift-serverless-1/client-kn-rhel8 1.1.0-3, openshift-serverless-1/serving-queue-rhel8 1.1.2-2, openshift-serverless-1/eventing-mtping-rhel8 1.1.0-2, openshift-serverless-1/kourier-control-rhel8 1.1.0-2, openshift-serverless-1/serving-webhook-rhel8 1.1.2-2, openshift-serverless-1/eventing-webhook-rhel8 1.1.0-2, +32 more
    fixed: vendor fix RHSA-2022:1747
  • Red Hat Ceph Storage 4 rhceph/rhceph-4-dashboard-rhel8 Red Hat Ceph Storage 5 rhceph/rhceph-5-dashboard-rhel8 Red Hat Enterprise Linux 9 golang, go-toolset, golang-bin, golang-src, golang-misc, golang-race, +1 more Red Hat Migration Toolkit 1.7 rhmtc/openshift-migration-ui-rhel8 v1.7.1-6, rhmtc/openshift-velero-plugin-rhel8 v1.7.1-4, rhmtc/openshift-migration-velero-rhel8 v1.7.1-3, rhmtc/openshift-migration-openvpn-rhel8 v1.7.1-4, rhmtc/openshift-migration-registry-rhel8 v1.7.1-4, rhmtc/openshift-migration-rhel8-operator v1.7.1-11, +9 more Red Hat OpenShift Container Platform 3.11 atomic-openshift, atomic-openshift-pod, atomic-openshift-node, atomic-openshift-tests, atomic-openshift-master, atomic-openshift-clients, +7 more Red Hat OpenShift Container Platform 4 openshift, openshift-clients, openshift-kubelet, openshift-hyperkube, openshift4/ose-console, openshift4/ose-grafana, +5 more
    +8 more products
    Red Hat Openshift Data Foundation 4 mcg, odf4/cephcsi-rhel9, odf4/ocs-rhel9-operator, noobaa-operator-container, odf4/ocs-must-gather-rhel8, odf4/rook-ceph-rhel9-operator Red Hat OpenShift Virtualization 2 kubevirt Red Hat OpenShift Virtualization 4 kubevirt Red Hat OpenStack Platform 16.1 etcd, golang-github-vbatts-tar-split Red Hat OpenStack Platform 16.2 etcd, golang-github-vbatts-tar-split Red Hat Quay 3 quay/quay-rhel8, quay/clair-rhel8, quay/quay-builder-rhel8, quay/quay-operator-rhel8, quay/quay-openshift-bridge-rhel8-operator, quay/quay-container-security-operator-rhel8 Red Hat Storage 3 etcd, golang, heketi, grafana, golang-bin, golang-src, +5 more Red Hat Service Telemetry Framework 1.2 for RHEL 8 stf/sg-core-rhel8, smart-gateway-container
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-23-047-04 updated cvss 7.5

Siemens Brownfield Connectivity Gateway

  • Siemens Brownfield Connectivity - Gateway <V1.10
    affected: fixed in V1.11

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

4.70% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
bitnami golang
<1.16.10
>=1.17.0, <1.17.3
1.16.10
1.17.3
go stdlib
<1.16.10
>=1.17.0-0, <1.17.3
1.16.10
1.17.3

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.