What’s Vulnerable › Vulnerabilities

CVE-2021-3326

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-01-27 · updated 2026-10-14
• Weakness: CWE-617

Description

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.

Affected products

• Debian Linux: 10.0
• Fujitsu M10-1 Firmware: before xcp2410; before xcp3110 — fixed in xcp2410, xcp3110
• Fujitsu M10-4 Firmware: before xcp2410; before xcp3110 — fixed in xcp2410, xcp3110
• Fujitsu M10-4S Firmware: before xcp2410; before xcp3110 — fixed in xcp2410, xcp3110
• Fujitsu M12-1 Firmware: before xcp2410; before xcp3110 — fixed in xcp2410, xcp3110
• Fujitsu M12-2 Firmware: before xcp2410; before xcp3110 — fixed in xcp2410, xcp3110
• Fujitsu M12-2S Firmware: before xcp2410; before xcp3110 — fixed in xcp2410, xcp3110
• GNU C Library (glibc): through 2.32.0
• E-Series SANtricity OS Controller Software 11.x: from 11.0 through 11.60.3
• NetApp ONTAP Select Deploy administration utility: all versions
• Oracle Communications Cloud Native Core Security Edge Protection Proxy: 1.5.0

How to fix

Upgrade to a fixed version: Fujitsu M10-1 Firmware xcp2410, xcp3110; Fujitsu M10-4 Firmware xcp2410, xcp3110; Fujitsu M10-4S Firmware xcp2410, xcp3110; Fujitsu M12-1 Firmware xcp2410, xcp3110; Fujitsu M12-2 Firmware xcp2410, xcp3110; Fujitsu M12-2S Firmware xcp2410, xcp3110. Check the vendor advisory for mitigations.

References

• http://www.openwall.com/lists/oss-security/2021/01/28/2
• https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html
• https://security.gentoo.org/glsa/202107-07
• https://security.netapp.com/advisory/ntap-20210304-0007/
• https://sourceware.org/bugzilla/show_bug.cgi?id=27256
• https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=7d88c6142c6efc160c0ee5e4f85cde382c072888
• https://www.oracle.com/security-alerts/cpuapr2022.html
• https://www.oracle.com/security-alerts/cpujan2022.html
• http://www.openwall.com/lists/oss-security/2021/01/28/2
• https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html
• https://security.gentoo.org/glsa/202107-07
• https://security.netapp.com/advisory/ntap-20210304-0007/

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