Medium severity · published Dec 4, 2020
CVE-2020-29562
The iconv function in the GNU C Library (aka glibc or libc6) 2.30 to 2.32, when converting UCS4 text containing an irreversible character, fails an assertion in the code path and…
4.8
CVSS
1.7%
EPSS
No
On KEV
Description
The iconv function in the GNU C Library (aka glibc or libc6) 2.30 to 2.32, when converting UCS4 text containing an irreversible character, fails an assertion in the code path and aborts the program, potentially resulting in a denial of service.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.7% · higher than 77% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ES
E-series Santricity OS Controller · Netapp
11.0.0 through 11.60.3 · source: NVD
FE
Fedora · Fedoraproject
32 · source: NVD
GL
Glibc · Gnu
2.30 through 2.32 · source: NVD
SS
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-29562
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-29562
lists.apache.org
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TVCUNLQ3HXGS4VPUQKWTJGRAW2KTFGXS/
Third Party Advisory
https://security.gentoo.org/glsa/202101-20
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210122-0004/
Exploit
https://sourceware.org/bugzilla/show_bug.cgi?id=26923
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
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