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CVE-2021-23840

🗓️ 16 Feb 2021 17:15:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve🔗 ubuntu.com👁 42 Views

Calls to EVP_CipherUpdate, EVP_EncryptUpdate, and EVP_DecryptUpdate may overflow output length argument, affecting OpenSSL 1.0.2x and below and OpenSSL 1.1.1i and below

Related
Packages
Refs
ReporterTitlePublishedViews
Family
ibm
IBM Security Bulletins		Security Bulletin: Vulnerabilities in OpenSSL affect IBM Rational ClearQuest
29 Jun 202115:25
–ibm
ibm
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities affect IBM® SDK for Node.js™ in IBM Cloud
11 Mar 202117:48
–ibm
ibm
IBM Security Bulletins		Security Bulletin: IBM Flex System switch firmware products are affected by vulnerabilities in OpenSSL
7 Dec 202323:00
–ibm
ibm
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities in node.js may affect configuration editor used in IBM Business Automation Workflow and IBM Business Process Manager (BPM) - CVE-2020-1971, CVE-2020-8265, CVE-2020-8287
25 Mar 202110:10
–ibm
ibm
IBM Security Bulletins		Security Bulletin: IBM Engineering Workflow Management (EWM) vulnerabilities CVE-2021-23839, CVE-2021-23840, CVE-2021-23841
7 Jul 202315:15
–ibm
ibm
IBM Security Bulletins		Security Bulletin: IBM App Connect Enterprise Certified Container may be vulnerable to multiple denial of service through the Node.js runtime
30 Apr 202113:25
–ibm
ibm
IBM Security Bulletins		Security Bulletin: IBM DataPower Gateway vulnerable to a DoS
16 Aug 202115:33
–ibm
ibm
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilites affect Engineering Lifecycle Management and IBM Engineering products.
27 Jul 202121:32
–ibm
ibm
IBM Security Bulletins		Security Bulletin: IBM InfoSphere Master Data Management Server vulnerability in OpenSSL
27 Apr 202210:23
–ibm
ibm
IBM Security Bulletins		Security Bulletin: Vulnerabilities in OpenSSL affect Cloud Pak System (CVE-2021-23840, CVE-2021-23841)
4 Jul 202302:14
–ibm
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OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu18.04alledk20edk2_0_all.deb
Ubuntu20.04alledk20~20191122.bd85bf54-2ubuntu3.3edk2_0~20191122.bd85bf54-2ubuntu3.3_all.deb
Ubuntu21.04alledk22020.11-4ubuntu0.1edk2_2020.11-4ubuntu0.1_all.deb
Ubuntu22.04allnodejs0nodejs_0_all.deb
Ubuntu21.10allopenssl1.1.1j-1ubuntu1openssl_1.1.1j-1ubuntu1_all.deb
Ubuntu22.04allopenssl1.1.1j-1ubuntu1openssl_1.1.1j-1ubuntu1_all.deb
Ubuntu23.04allopenssl1.1.1j-1ubuntu1openssl_1.1.1j-1ubuntu1_all.deb
Ubuntu18.04allopenssl1.1.1-1ubuntu2.1~18.04.8openssl_1.1.1-1ubuntu2.1~18.04.8_all.deb
Ubuntu21.04allopenssl1.1.1j-1ubuntu1openssl_1.1.1j-1ubuntu1_all.deb
Ubuntu20.04allopenssl1.1.1f-1ubuntu2.2openssl_1.1.1f-1ubuntu2.2_all.deb
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18 Aug 2025 17:15Current
6.7Medium risk
Vulners AI Score6.7
CVSS 25
CVSS 3.17.5
EPSS0.50732
SSVC
opensslevp_cipherupdateinteger overflowplatformupgrade
42