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ubuntuUbuntuUSN-4738-1
HistoryFeb 18, 2021 - 12:00 a.m.

OpenSSL vulnerabilities

2021-02-1800:00:00
ubuntu.com
152

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.4 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.008 Low

EPSS

Percentile

82.0%

JSON

Releases

  • Ubuntu 20.10
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM
  • Ubuntu 16.04 ESM

Packages

  • openssl - Secure Socket Layer (SSL) cryptographic library and tools
  • openssl1.0 - Secure Socket Layer (SSL) cryptographic library and tools

Details

Paul Kehrer discovered that OpenSSL incorrectly handled certain input
lengths in EVP functions. A remote attacker could possibly use this issue
to cause OpenSSL to crash, resulting in a denial of service.
(CVE-2021-23840)

Tavis Ormandy discovered that OpenSSL incorrectly handled parsing issuer
fields. A remote attacker could possibly use this issue to cause OpenSSL to
crash, resulting in a denial of service. (CVE-2021-23841)

OSVersionArchitecturePackageVersionFilename
Ubuntu20.10noarchlibssl1.1< 1.1.1f-1ubuntu4.2UNKNOWN
Ubuntu20.10noarchlibcrypto1.1-udeb< 1.1.1f-1ubuntu4.2UNKNOWN
Ubuntu20.10noarchlibssl-dev< 1.1.1f-1ubuntu4.2UNKNOWN
Ubuntu20.10noarchlibssl-doc< 1.1.1f-1ubuntu4.2UNKNOWN
Ubuntu20.10noarchlibssl1.1-dbgsym< 1.1.1f-1ubuntu4.2UNKNOWN
Ubuntu20.10noarchlibssl1.1-udeb< 1.1.1f-1ubuntu4.2UNKNOWN
Ubuntu20.10noarchopenssl< 1.1.1f-1ubuntu4.2UNKNOWN
Ubuntu20.10noarchopenssl-dbgsym< 1.1.1f-1ubuntu4.2UNKNOWN
Ubuntu20.04noarchlibssl1.1< 1.1.1f-1ubuntu2.2UNKNOWN
Ubuntu20.04noarchlibcrypto1.1-udeb< 1.1.1f-1ubuntu2.2UNKNOWN
Rows per page:
1-10 of 431

Related

ibm 32
nessus 69
suse 2
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altlinux 2
openvas 43
redhat 3
amazon 4
osv 10
mageia 1
freebsd_advisory 1
cloudfoundry 1
centos 1
almalinux 2
debian 4
rocky 2
archlinux 1
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cloudlinux 1
redhatcve 1
symantec 1
veracode 1
openssl 1
cve 1
githubexploit 1
github 1
ibm
ibm
Security Bulletin: OpenSSL for IBM i is affected by CVE-2021-23840 and CVE-2021-23841
2021-03-12 19:31:53
Security Bulletin: Multiple vulnerabilities in OpenSSL may affect IBM Workload Scheduler
2021-09-08 09:46:23
Security Bulletin: Vulnerability in OpenSSL affects IBM Integrated Analytics System.
2022-02-17 08:29:09
nessus
nessus
SUSE SLES15 Security Update : openssl-1_1 (SUSE-SU-2021:0753-1)
2021-03-10 00:00:00
RHEL 8 : openssl (RHSA-2021:4424)
2021-11-11 00:00:00
RHEL 7 : openssl (RHSA-2021:3798)
2022-09-15 00:00:00
suse
suse
Security update for openssl-1_0_0 (moderate)
2021-03-17 00:00:00
Security update for openssl-1_1 (moderate)
2021-03-16 00:00:00
oraclelinux
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openssl security and bug fix update
2021-11-16 00:00:00
openssl security update
2021-10-13 00:00:00
openssl security update
2021-11-23 00:00:00
altlinux
altlinux
Security fix for the ALT Linux 9 package openssl1.1 version 1.1.1j-alt1
2021-03-17 00:00:00
Security fix for the ALT Linux 10 package openssl1.1 version 1.1.1j-alt1
2021-03-12 00:00:00
openvas
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Huawei EulerOS: Security Advisory for openssl (EulerOS-SA-2021-2032)
2021-07-01 00:00:00
Huawei EulerOS: Security Advisory for openssl098e (EulerOS-SA-2021-2044)
2021-07-01 00:00:00
Huawei EulerOS: Security Advisory for openssl098e (EulerOS-SA-2021-2417)
2021-09-15 00:00:00
redhat
redhat
(RHSA-2021:4424) Moderate: openssl security and bug fix update
2021-11-09 09:21:13
(RHSA-2021:3798) Moderate: openssl security update
2021-10-12 13:20:50
(RHSA-2021:4198) Moderate: edk2 security, bug fix, and enhancement update
2021-11-09 08:37:02
amazon
amazon
Medium: openssl
2021-02-23 20:18:00
Medium: openssl11
2021-03-18 01:40:00
Medium: openssl11
2021-03-18 01:40:00
osv
osv
openssl1.0 - security update
2021-02-18 00:00:00
openssl, openssl1.0 vulnerabilities
2021-02-18 12:22:41
Moderate: edk2 security, bug fix, and enhancement update
2021-11-09 08:37:02
mageia
mageia
Updated openssl and compat-openssl10 packages fix security vulnerabilities
2021-03-04 19:53:32
freebsd_advisory
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FreeBSD-SA-21:17.openssl
2021-08-24 00:00:00
cloudfoundry
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USN-4738-1: OpenSSL vulnerabilities | Cloud Foundry
2021-03-02 00:00:00
centos
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openssl security update
2021-11-17 14:51:29
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Moderate: edk2 security, bug fix, and enhancement update
2021-11-09 08:37:02
Moderate: openssl security and bug fix update
2021-11-09 09:21:13
debian
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[SECURITY] [DLA 2563-1] openssl security update
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rocky
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edk2 security, bug fix, and enhancement update
2021-11-09 08:37:02
openssl security and bug fix update
2021-11-09 09:21:13
archlinux
archlinux
[ASA-202102-42] openssl: multiple issues
2021-02-27 00:00:00
freebsd
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OpenSSL -- Multiple vulnerabilities
2021-02-16 00:00:00
aix
aix
Vulnerabilities in OpenSSL affect AIX
2021-04-14 13:49:09
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Important Photon OS Security Update - PHSA-2021-0325
2021-02-25 00:00:00
gentoo
gentoo
OpenSSL: Multiple vulnerabilities
2021-03-31 00:00:00
rustsec
rustsec
Integer overflow in CipherUpdate
2021-05-01 12:00:00
alpinelinux
alpinelinux
CVE-2021-23840
2021-02-16 17:15:00
CVE-2021-23841
2021-02-16 17:15:00
f5
f5
K52833764 : OpenSSL vulnerability CVE-2021-23841
2021-02-18 00:00:00
cloudlinux
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Fix of CVE:CVE-2021-23841
2021-03-03 12:00:00
redhatcve
redhatcve
CVE-2021-23841
2021-02-18 17:04:17
symantec
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OpenSSL Vulnerabilities Sep 2020 - Feb 2021
2021-03-09 19:16:55
veracode
veracode
Denial Of Service (DoS)
2021-02-17 18:09:34
openssl
openssl
Vulnerability in OpenSSL CVE-2021-23841
2021-02-16 00:00:00
cve
cve
CVE-2021-23841
2021-02-16 17:15:00
githubexploit
githubexploit
Exploit for NULL Pointer Dereference in Openssl
2023-09-08 09:32:30
github
github
Integer Overflow in openssl-src
2021-08-25 20:52:21

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.4 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.008 Low

EPSS

Percentile

82.0%

JSON
Related for USN-4738-1
ibm32nessus69suse2oraclelinux5altlinux2openvas43redhat3amazon4osv10mageia1freebsd_advisory1cloudfoundry1centos1almalinux2debian4rocky2archlinux1freebsd1aix1photon1gentoo1rustsec1alpinelinux2f51cloudlinux1redhatcve1symantec1veracode1openssl1cve1githubexploit1github1