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CVE-2020-27618

Date: February 25, 2021

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.

Language: C

Severity Score

Related Resources (13)

https://www.oracle.com/security-alerts/cpujan2022.html
https://nvd.nist.gov/vuln/detail/CVE-2020-27618
https://sourceware.org/bugzilla/show_bug.cgi?id=19519#c21
https://access.redhat.com/security/cve/CVE-2020-27618
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-27618
https://sourceware.org/bugzilla/show_bug.cgi?id=26224
https://security.netapp.com/advisory/ntap-20210401-0006/
https://security-tracker.debian.org/tracker/CVE-2020-27618
https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html
https://github.com/bminor/glibc/commit/9a99c682144bdbd40792ebf822fe9264e0376fb5
https://security.gentoo.org/glsa/202107-07
https://www.oracle.com/security-alerts/cpuapr2022.html
https://www.mend.io/vulnerability-database/CVE-2020-27618

Severity Score

Weakness Type (CWE)

Loop with Unreachable Exit Condition ('Infinite Loop')

CWE-835

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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