Lucene search
K
Database
Vendors
Products
Years
CVSS
Scanner
Agent Scanning
API Scanning
Manual Audit
Perimeter Scanner
Scanning
Projects
Email
Webhook
Plugins
Resources
Documents
Blog
Glossary
FAQ
Pricing
Contacts
About Us
Partners
Branding Guideline
ubuntucveUbuntu.comUB:CVE-2021-3449
HistoryMar 25, 2021 - 12:00 a.m.

CVE-2021-3449

2021-03-2500:00:00
ubuntu.com
ubuntu.com
26

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.005 Low

EPSS

Percentile

76.4%

JSON

An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation
ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello
omits the signature_algorithms extension (where it was present in the
initial ClientHello), but includes a signature_algorithms_cert extension
then a NULL pointer dereference will result, leading to a crash and a
denial of service attack. A server is only vulnerable if it has TLSv1.2 and
renegotiation enabled (which is the default configuration). OpenSSL TLS
clients are not impacted by this issue. All OpenSSL 1.1.1 versions are
affected by this issue. Users of these versions should upgrade to OpenSSL
1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL
1.1.1k (Affected 1.1.1-1.1.1j).

Notes

Author Note
mdeslaur does not affect 1.0.2 edk2 doesn’t implement a server, so not vulnerable to this issue
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchopenssl< 1.1.1-1ubuntu2.1~18.04.9UNKNOWN
ubuntu20.04noarchopenssl< 1.1.1f-1ubuntu2.3UNKNOWN
ubuntu20.10noarchopenssl< 1.1.1f-1ubuntu4.3UNKNOWN
ubuntu21.04noarchopenssl< 1.1.1j-1ubuntu3UNKNOWN
ubuntu21.10noarchopenssl< 1.1.1j-1ubuntu3UNKNOWN
ubuntu22.04noarchopenssl< 1.1.1j-1ubuntu3UNKNOWN
ubuntu22.10noarchopenssl< 1.1.1j-1ubuntu3UNKNOWN
ubuntu23.04noarchopenssl< 1.1.1j-1ubuntu3UNKNOWN
ubuntu23.10noarchopenssl< 1.1.1j-1ubuntu3UNKNOWN
ubuntu24.04noarchopenssl< 1.1.1j-1ubuntu3UNKNOWN
Rows per page:
1-10 of 151

Related

f5 1
openvas 32
nessus 54
redhat 14
suse 5
ibm 37
ubuntu 2
osv 8
debiancve 1
openssl 1
cve 1
alpinelinux 1
nvd 1
cvelist 1
debian 3
checkpoint_security 1
ics 1
veracode 1
prion 1
github 1
githubexploit 2
rustsec 1
cloudfoundry 1
redhatcve 1
mscve 1
seebug 1
freebsd_advisory 1
photon 4
attackerkb 2
fedora 1
almalinux 1
rocky 1
symantec 1
oraclelinux 2
altlinux 2
thn 1
archlinux 1
amazon 1
freebsd 2
cisco 1
mageia 1
nodejsblog 1
kaspersky 1
gentoo 1
f5
f5
K83623027 : OpenSSL vulnerability CVE-2021-3449
2021-03-26 00:00:00
openvas
openvas
Huawei EulerOS: Security Advisory for openssl (EulerOS-SA-2021-1970)
2021-06-07 00:00:00
openSUSE: Security Advisory for openssl-1_1 (openSUSE-SU-2021:0476-1)
2021-04-16 00:00:00
Huawei EulerOS: Security Advisory for openssl (EulerOS-SA-2021-2020)
2021-07-01 00:00:00
nessus
nessus
EulerOS 2.0 SP5 : openssl1.1.1d (EulerOS-SA-2021-2225)
2021-07-16 00:00:00
Debian DLA-2751-1 : postgresql-9.6 - LTS security update
2021-09-02 00:00:00
openSUSE Security Update : openssl-1_1 (openSUSE-2021-476)
2021-03-26 00:00:00
redhat
redhat
(RHSA-2021:1131) Important: openssl security update
2021-04-07 15:12:41
(RHSA-2021:1063) Important: openssl security update
2021-04-05 13:17:44
(RHSA-2021:1199) Important: Red Hat JBoss Core Services Apache HTTP Server 2.4.37 SP7 security update
2021-04-14 15:45:52
suse
suse
Security update for openssl-1_1 (important)
2021-03-26 00:00:00
Security update for nodejs10 (important)
2021-07-15 00:00:00
Security update for nodejs10 (important)
2021-07-20 00:00:00
ibm
ibm
Security Bulletin: Potential DoS in IBM DataPower Gateway
2021-08-16 15:12:36
Security Bulletin: z/TPF is affected by an OpenSSL vulnerability
2021-04-29 15:58:54
Security Bulletin: OpenSSL publicly disclosed vulnerability affects MessageGateway (CVE-CVE-2021-3449)
2021-06-21 21:55:43
ubuntu
ubuntu
OpenSSL vulnerability
2021-03-25 00:00:00
PostgreSQL vulnerabilities
2021-08-12 00:00:00
osv
osv
BIT-node-2021-3449
2024-03-06 11:05:44
NULL pointer deref in signature_algorithms processing
2021-05-01 12:00:00
openssl - security update
2021-03-25 00:00:00
debiancve
debiancve
CVE-2021-3449
2021-03-25 15:15:13
openssl
openssl
Vulnerability in OpenSSL CVE-2021-3449
2021-03-25 00:00:00
cve
cve
CVE-2021-3449
2021-03-25 15:15:13
alpinelinux
alpinelinux
CVE-2021-3449
2021-03-25 15:15:13
nvd
nvd
CVE-2021-3449
2021-03-25 15:15:13
cvelist
cvelist
CVE-2021-3449 NULL pointer deref in signature_algorithms processing
2021-03-25 00:00:00
debian
debian
[SECURITY] [DSA 4875-1] openssl security update
2021-03-25 15:41:28
[SECURITY] [DLA 2751-1] postgresql-9.6 security update
2021-08-31 14:03:14
[SECURITY] [DSA 4875-1] openssl security update
2021-03-25 15:41:28
checkpoint_security
checkpoint_security
Check Point Response to OpenSSL CVE-2021-3449
2021-04-10 23:31:27
ics
ics
Siemens OpenSSL Vulnerabilities in Industrial Products (Update B)
2022-08-11 12:00:00
veracode
veracode
Denial Of Service (DoS)
2021-03-25 16:28:32
prion
prion
Null pointer dereference
2021-03-25 15:15:00
github
github
openssl-src NULL pointer Dereference in signature_algorithms processing
2021-08-25 20:54:02
githubexploit
githubexploit
Exploit for NULL Pointer Dereference in Openssl
2021-03-26 01:09:25
Exploit for NULL Pointer Dereference in Openssl
2023-09-08 10:53:39
rustsec
rustsec
NULL pointer deref in signature_algorithms processing
2021-05-01 12:00:00
cloudfoundry
cloudfoundry
USN-4891-1: OpenSSL vulnerability | Cloud Foundry
2021-04-14 00:00:00
redhatcve
redhatcve
CVE-2021-3449
2021-03-25 14:58:10
mscve
mscve
OpenSSL: CVE-2021-3449 NULL pointer deref in signature_algorithms processing
2021-10-12 07:00:00
seebug
seebug
OpenSSL 拒绝服务攻击（CVE-2021-3449）
2021-03-29 00:00:00
freebsd_advisory
freebsd_advisory
FreeBSD-SA-21:07.openssl
2021-03-25 00:00:00
photon
photon
Home Download Photon OS User Documentation FAQ Security Advisories Related Information Lightwave - PHSA-2021-2.0-0331
2021-03-25 00:00:00
Important Photon OS Security Update - PHSA-2021-0331
2021-03-25 00:00:00
Important Photon OS Security Update - PHSA-2021-0210
2021-03-26 00:00:00
attackerkb
attackerkb
OpenSSL TLS Server Crash (NULL pointer dereference) — CVE-2021-3449
2021-03-25 00:00:00
CVE-2021-3450
2021-03-25 00:00:00
fedora
fedora
[SECURITY] Fedora 34 Update: openssl-1.1.1k-1.fc34
2021-04-01 00:53:20
almalinux
almalinux
Important: openssl security update
2021-03-29 19:03:22
rocky
rocky
openssl security update
2021-03-29 19:03:22
symantec
symantec
OpenSSL Vulnerabilities Mar 2021
2021-04-07 19:44:57
oraclelinux
oraclelinux
openssl security update
2021-03-29 00:00:00
openssl security update
2021-04-01 00:00:00
altlinux
altlinux
Security fix for the ALT Linux 9 package openssl1.1 version 1.1.1k-alt1
2021-03-29 00:00:00
Security fix for the ALT Linux 10 package openssl1.1 version 1.1.1k-alt1
2021-03-25 00:00:00
thn
thn
OpenSSL Releases Patches for 2 High-Severity Security Vulnerabilities
2021-03-26 14:56:00
archlinux
archlinux
[ASA-202103-10] openssl: multiple issues
2021-03-25 00:00:00
amazon
amazon
Important: openssl11
2021-03-25 18:31:00
freebsd
freebsd
OpenSSL -- Multiple vulnerabilities
2021-03-25 00:00:00
Node.js -- April 2021 Security Releases
2021-04-06 00:00:00
cisco
cisco
Multiple Vulnerabilities in OpenSSL Affecting Cisco Products: March 2021
2021-03-25 16:00:00
mageia
mageia
Updated openssl packages fix security vulnerability
2021-04-05 18:54:07
nodejsblog
nodejsblog
April 2021 Security Releases
2021-04-06 00:00:00
kaspersky
kaspersky
KLA12311 Multiple vulnerabilities in Microsoft Developer Tools
2021-10-12 00:00:00
gentoo
gentoo
OpenSSL: Multiple vulnerabilities
2021-03-31 00:00:00

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.005 Low

EPSS

Percentile

76.4%

JSON
Related for UB:CVE-2021-3449
f51openvas32nessus54redhat14suse5ibm37ubuntu2osv8debiancve1openssl1cve1alpinelinux1nvd1cvelist1debian3checkpoint_security1ics1veracode1prion1github1githubexploit2rustsec1cloudfoundry1redhatcve1mscve1seebug1freebsd_advisory1photon4attackerkb2fedora1almalinux1rocky1symantec1oraclelinux2altlinux2thn1archlinux1amazon1freebsd2cisco1mageia1nodejsblog1kaspersky1gentoo1