Home/CVE/The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid multi-byte input
CVE

CVE-2020-27618

The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid multi-byte input

The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid multi-byte input sequences in IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 encodings, fails to advance the input state, which could lead to an infinite loop in applications, resulting in a denial of service, a different vulnerability from CVE-2016-10228.

MEDIUM · CVSS 5.5 EPSS 0.0005
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')
CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')
▤

Affected Products & Versions

14
gnu glibc<= 2.32
netapp ontap select deploy administration utilityall versions
netapp a250 firmwareall versions
netapp 500f firmwareall versions
netapp h410c firmwareall versions
netapp h300s firmwareall versions
netapp h500s firmwareall versions
netapp h700s firmwareall versions
⚠

Public Exploits & PoCs

1
pocsourceware.org · show_bug.cgi?id=26224sourceware.org
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 Feb 2021 · 11:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

14
suse-csafopenSUSE-SU-2024:10792-1
suse-csafSUSE-SU-2024:0759-1
siemens-csafSSA-398330
siemens-csafSSA-831302
usnUSN-5768-1
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://lists.debian.org/debian-lts-announce/2022/10/msg00021.htmlMailing ListThird Party Advisory
https://security.gentoo.org/glsa/202107-07Third Party Advisory
https://security.netapp.com/advisory/ntap-20210401-0006/Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=19519#c21Issue TrackingPatchThird Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.htmlNot ApplicableThird Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.htmlPatchThird Party Advisory
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