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TI-2021-02328 Aliases CVE-2021-3326GHSA-w279-vhxx-7qx8

The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when…

Priority LOW 39CWE-617Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 3 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-617.

Summary

The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid input sequences in the ISO-2022-JP-3 encoding, fails an assertion in the code path and aborts the program, potentially resulting in a denial of service.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.03825 90th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 3 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 23

CPEVersionsRoleVendor
cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*up to 2.32.0VulnerableGNU
cpe:2.3:a:netapp:e-series_santricity_os_controller:*:*:*:*:*:*:*:*11.0 – 11.60.3VulnerableNetApp
cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:oracle:communications_cloud_native_core_security_edge_protection_proxy:1.5.0:*:*:*:*:*:*:*1.5.0VulnerableOracle
cpe:2.3:o:fujitsu:m10-1_firmware:*:*:*:*:*:*:*:*before xcp2410VulnerableFujitsu
cpe:2.3:h:fujitsu:m10-1:-:*:*:*:*:*:*:*not specified by NVDRunning onFujitsu
cpe:2.3:o:fujitsu:m10-4_firmware:*:*:*:*:*:*:*:*before xcp2410VulnerableFujitsu
cpe:2.3:h:fujitsu:m10-4:-:*:*:*:*:*:*:*not specified by NVDRunning onFujitsu
cpe:2.3:o:fujitsu:m10-4s_firmware:*:*:*:*:*:*:*:*before xcp2410VulnerableFujitsu
cpe:2.3:h:fujitsu:m10-4s:-:*:*:*:*:*:*:*not specified by NVDRunning onFujitsu
  • cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* Versions up to 2.32.0 Vulnerable ·GNU
  • cpe:2.3:a:netapp:e-series_santricity_os_controller:*:*:*:*:*:*:*:* Versions 11.0 – 11.60.3 Vulnerable ·NetApp
  • cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:oracle:communications_cloud_native_core_security_edge_protection_proxy:1.5.0:*:*:*:*:*:*:* Versions 1.5.0 Vulnerable ·Oracle
  • cpe:2.3:o:fujitsu:m10-1_firmware:*:*:*:*:*:*:*:* Versions before xcp2410 Vulnerable ·Fujitsu
  • cpe:2.3:h:fujitsu:m10-1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Fujitsu
  • cpe:2.3:o:fujitsu:m10-4_firmware:*:*:*:*:*:*:*:* Versions before xcp2410 Vulnerable ·Fujitsu
  • cpe:2.3:h:fujitsu:m10-4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Fujitsu
  • cpe:2.3:o:fujitsu:m10-4s_firmware:*:*:*:*:*:*:*:* Versions before xcp2410 Vulnerable ·Fujitsu
  • cpe:2.3:h:fujitsu:m10-4s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Fujitsu
Show 13 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:fujitsu:m12-1_firmware:*:*:*:*:*:*:*:*before xcp2410VulnerableFujitsu
cpe:2.3:h:fujitsu:m12-1:-:*:*:*:*:*:*:*not specified by NVDRunning onFujitsu
cpe:2.3:o:fujitsu:m12-2_firmware:*:*:*:*:*:*:*:*before xcp2410VulnerableFujitsu
cpe:2.3:h:fujitsu:m12-2:-:*:*:*:*:*:*:*not specified by NVDRunning onFujitsu
cpe:2.3:o:fujitsu:m12-2s_firmware:*:*:*:*:*:*:*:*before xcp2410VulnerableFujitsu
cpe:2.3:h:fujitsu:m12-2s:-:*:*:*:*:*:*:*not specified by NVDRunning onFujitsu
cpe:2.3:o:fujitsu:m10-1_firmware:*:*:*:*:*:*:*:*before xcp3110VulnerableFujitsu
cpe:2.3:o:fujitsu:m10-4_firmware:*:*:*:*:*:*:*:*before xcp3110VulnerableFujitsu
cpe:2.3:o:fujitsu:m10-4s_firmware:*:*:*:*:*:*:*:*before xcp3110VulnerableFujitsu
cpe:2.3:o:fujitsu:m12-1_firmware:*:*:*:*:*:*:*:*before xcp3110VulnerableFujitsu
cpe:2.3:o:fujitsu:m12-2_firmware:*:*:*:*:*:*:*:*before xcp3110VulnerableFujitsu
cpe:2.3:o:fujitsu:m12-2s_firmware:*:*:*:*:*:*:*:*before xcp3110VulnerableFujitsu
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
  • cpe:2.3:o:fujitsu:m12-1_firmware:*:*:*:*:*:*:*:* Versions before xcp2410 Vulnerable ·Fujitsu
  • cpe:2.3:h:fujitsu:m12-1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Fujitsu
  • cpe:2.3:o:fujitsu:m12-2_firmware:*:*:*:*:*:*:*:* Versions before xcp2410 Vulnerable ·Fujitsu
  • cpe:2.3:h:fujitsu:m12-2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Fujitsu
  • cpe:2.3:o:fujitsu:m12-2s_firmware:*:*:*:*:*:*:*:* Versions before xcp2410 Vulnerable ·Fujitsu
  • cpe:2.3:h:fujitsu:m12-2s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Fujitsu
  • cpe:2.3:o:fujitsu:m10-1_firmware:*:*:*:*:*:*:*:* Versions before xcp3110 Vulnerable ·Fujitsu
  • cpe:2.3:o:fujitsu:m10-4_firmware:*:*:*:*:*:*:*:* Versions before xcp3110 Vulnerable ·Fujitsu
  • cpe:2.3:o:fujitsu:m10-4s_firmware:*:*:*:*:*:*:*:* Versions before xcp3110 Vulnerable ·Fujitsu
  • cpe:2.3:o:fujitsu:m12-1_firmware:*:*:*:*:*:*:*:* Versions before xcp3110 Vulnerable ·Fujitsu
  • cpe:2.3:o:fujitsu:m12-2_firmware:*:*:*:*:*:*:*:* Versions before xcp3110 Vulnerable ·Fujitsu
  • cpe:2.3:o:fujitsu:m12-2s_firmware:*:*:*:*:*:*:*:* Versions before xcp3110 Vulnerable ·Fujitsu
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian

Remediation

Red Hat 1 advisory

  • RHSA-2021:1585 Released 2021-05-18 · Red Hat rating Moderate
    glibc security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) glibc-benchtests-2.28-151.el8, glibc-nss-devel-2.28-151.el8, glibc-static-2.28-151.el8 +1
    • Red Hat Enterprise Linux AppStream (v. 8) compat-libpthread-nonshared-2.28-151.el8, glibc-utils-2.28-151.el8
    • Red Hat Enterprise Linux BaseOS (v. 8) glibc-2.28-151.el8, glibc-all-langpacks-2.28-151.el8, glibc-common-2.28-151.el8 +47

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2021:1585
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2021:1585
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2021:1585
Not affected: 2 products
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-3326
  2. 2026-10-03 Alias added: GHSA-w279-vhxx-7qx8
  3. 2026-10-23 EPSS moved to the 90th–95th percentile
  4. 2026-10-25 EPSS moved to the 50th–90th percentile
  5. 2026-10-26 EPSS moved to the 90th–95th percentile

References

Patch 1

Advisory 5

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences