CVE-2021-3326
Advisory lineage Upstream: 0 Downstream: 13
Modified
Published: 27 Jan 2021, 00:00
Last modified:09 Jun 2025, 15:18
Vulnerability Summary
Overall Risk (default)
medium
30/100 CVSS Score
7.5 HIGH
v3.1 (cve.org)
EPSS Score
0.17% LOW
0% probability -0.05%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
27 Jan 2021, 00:00
Published
Vulnerability first disclosed
09 Jun 2025, 15:18
Last Modified
Vulnerability information updated
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.
CVSS Metrics
- v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS Trends
Current EPSS score: 0.17%• Percentile: 38%
Techniques & Countermeasures
- CWE-617•Reachable Assertion
The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.
Affected Systems
- debian•debian_linux
10.0
- 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
- gnu•glibc
≤ 2.32.0
- netapp•e-series_santricity_os_controller
≥ 11.0, ≤ 11.60.3
- netapp•ontap_select_deploy_administration_utility
na
- oracle•communications_cloud_native_core_security_edge_protection_proxy
1.5.0
References (8)
- https://sourceware.org/bugzilla/show_bug.cgi?id=27256
- https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=7d88c6142c6efc160c0ee5e4f85cde382c072888
- http://www.openwall.com/lists/oss-security/2021/01/28/2
- https://security.gentoo.org/glsa/202107-07
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://security.netapp.com/advisory/ntap-20210304-0007/
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html