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nvd[email protected]NVD:CVE-2021-20305
HistoryApr 05, 2021 - 10:15 p.m.

CVE-2021-20305

2021-04-0522:15:12
CWE-327
CWE-787
[email protected]
web.nvd.nist.gov
9
nettle
signature verification
flaw
elliptic curve cryptography
scalability
assertion failure
confidentiality
integrity
system availability

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.01

Percentile

83.4%

JSON

A flaw was found in Nettle in versions before 3.7.2, where several Nettle signature verification functions (GOST DSA, EDDSA & ECDSA) result in the Elliptic Curve Cryptography point (ECC) multiply function being called with out-of-range scalers, possibly resulting in incorrect results. This flaw allows an attacker to force an invalid signature, causing an assertion failure or possible validation. The highest threat to this vulnerability is to confidentiality, integrity, as well as system availability.

Affected configurations

Nvd
Node
nettle_projectnettleRange<3.7.2
Node
fedoraprojectfedoraMatch33
OR
redhatenterprise_linuxMatch7.0
OR
redhatenterprise_linuxMatch8.0
Node
netappactive_iq_unified_managerMatch-vmware_vsphere
OR
netappontap_select_deploy_administration_utilityMatch-
Node
debiandebian_linuxMatch9.0
OR
debiandebian_linuxMatch10.0
VendorProductVersionCPE
nettle_projectnettle*cpe:2.3:a:nettle_project:nettle:*:*:*:*:*:*:*:*
fedoraprojectfedora33cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
redhatenterprise_linux7.0cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
redhatenterprise_linux8.0cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
netappactive_iq_unified_manager-cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
netappontap_select_deploy_administration_utility-cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*
debiandebian_linux9.0cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
debiandebian_linux10.0cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Related

redhat 26
nessus 47
openvas 16
ubuntucve 1
prion 1
redos 19
cvelist 1
osv 6
oraclelinux 2
alpinelinux 1
fedora 1
f5 1
debiancve 1
altlinux 2
gentoo 1
photon 8
cbl_mariner 1
veracode 1
rocky 1
redhatcve 1
amazon 1
slackware 1
suse 1
cloudfoundry 1
almalinux 1
cve 1
ubuntu 1
centos 1
mageia 1
debian 3
rosalinux 1
ibm 6
ics 1
redhat
redhat
(RHSA-2021:2356) Important: nettle security update
2021-06-09 08:30:05
(RHSA-2021:1245) Important: gnutls and nettle security update
2021-04-19 11:26:49
(RHSA-2021:1246) Important: gnutls and nettle security update
2021-04-19 11:27:37
nessus
nessus
AlmaLinux 8 : gnutls and nettle (ALSA-2021:1206)
2022-02-09 00:00:00
GLSA-202105-31 : Nettle: Denial of service
2022-01-24 00:00:00
Rocky Linux 8 : gnutls and nettle (RLSA-2021:1206)
2023-11-07 00:00:00
openvas
openvas
Ubuntu: Security Advisory (USN-4906-1)
2021-04-14 00:00:00
CentOS: Security Advisory for nettle (CESA-2021:1145)
2021-04-17 00:00:00
SUSE: Security Advisory (SUSE-SU-2021:1399-1)
2021-06-09 00:00:00
ubuntucve
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CVE-2021-20305
2021-04-05 00:00:00
prion
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Design/Logic Flaw
2021-04-05 22:15:00
redos
redos
ROS-2-583
2023-07-06 00:00:00
ROS-2-830
2021-09-08 00:00:00
ROS-2-619
2021-09-08 00:00:00
cvelist
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CVE-2021-20305
2021-04-05 21:31:06
osv
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CGA-jrgv-6vmg-8276
2024-06-06 12:26:08
nettle vulnerability
2021-04-13 15:00:11
CVE-2021-20305
2021-04-05 22:15:12
oraclelinux
oraclelinux
gnutls and nettle security update
2021-04-16 00:00:00
nettle security update
2021-04-09 00:00:00
alpinelinux
alpinelinux
CVE-2021-20305
2021-04-05 22:15:12
fedora
fedora
[SECURITY] Fedora 33 Update: gnutls-3.6.16-1.fc33
2021-06-01 01:06:08
f5
f5
K33101555 : Nettle cryptography library vulnerability CVE-2021-20305
2021-06-08 00:00:00
debiancve
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CVE-2021-20305
2021-04-05 22:15:12
altlinux
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Security fix for the ALT Linux 9 package gnutls30 version 3.6.16-alt1
2021-06-09 00:00:00
Security fix for the ALT Linux 10 package gnutls30 version 3.6.16-alt1
2021-05-31 00:00:00
gentoo
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Nettle: Denial of service
2021-05-26 00:00:00
photon
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Home Download Photon OS User Documentation FAQ Security Advisories Related Information Lightwave - PHSA-2021-2.0-0339
2021-04-21 00:00:00
Critical Photon OS Security Update - PHSA-2021-0339
2021-04-21 00:00:00
Critical Photon OS Security Update - PHSA-2021-0012
2021-04-21 00:00:00
cbl_mariner
cbl_mariner
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veracode
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2021-04-17 00:58:26
rocky
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2021-04-14 20:07:45
redhatcve
redhatcve
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2021-03-31 17:08:42
amazon
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Important: nettle
2021-04-20 17:55:00
slackware
slackware
[slackware-security] gnutls
2021-05-25 18:17:19
suse
suse
Security update for libnettle (important)
2021-05-01 00:00:00
cloudfoundry
cloudfoundry
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2021-04-29 00:00:00
almalinux
almalinux
Important: gnutls and nettle security update
2021-04-14 20:07:45
cve
cve
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2021-04-05 22:15:12
ubuntu
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2021-04-13 00:00:00
centos
centos
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2021-04-16 20:23:43
mageia
mageia
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2021-06-29 20:31:40
debian
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2021-09-18 14:46:40
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rosalinux
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ibm
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Security Bulletin: Multiple vulnerabilites affect IBM Jazz Foundation and IBM Engineering products.
2021-07-16 17:54:43
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2021-07-30 07:38:48
ics
ics
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2023-12-14 12:00:00

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.01

Percentile

83.4%

JSON
Related for NVD:CVE-2021-20305
redhat26nessus47openvas16ubuntucve1prion1redos19cvelist1osv6oraclelinux2alpinelinux1fedora1f51debiancve1altlinux2gentoo1photon8cbl_mariner1veracode1rocky1redhatcve1amazon1slackware1suse1cloudfoundry1almalinux1cve1ubuntu1centos1mageia1debian3rosalinux1ibm6ics1