CVE-2021-23840

 

Published at: - 16-02-2021 06:15

Last modified: - 12-09-2022 03:54

Total changes: - 25

Description

Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is close to the maximum permissable length for an integer on the platform. In such cases the return value from the function call will be 1 (indicating success), but the output length value will be negative. This could cause applications to behave incorrectly or crash. OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x).

Common Vulnerability Scoring System (CVSS)

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

 

Verification logic

 

Reference

• https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=9b1129239f3ebb1d1c98ce9ed41d5c9476c47cb2
• https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=6a51b9e1d0cf0bf8515f7201b68fb0a3482b3dc1
• https://www.openssl.org/news/secadv/20210216.txt
• DSA-4855-Third Party Advisory
• https://security.netapp.com/advisory/ntap-20210219-0009/
• https://www.tenable.com/security/tns-2021-03
• GLSA-202103-03-Third Party Advisory
• https://www.tenable.com/security/tns-2021-09
• https://www.tenable.com/security/tns-2021-10
• https://www.oracle.com/security-alerts/cpuApr2021.html
• [bookkeeper-issues] 20210628 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8-Mailing List, Third Party Advisory
• [bookkeeper-issues] 20210629 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8-Mailing List, Third Party Advisory
• https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44846
• N/A-Patch, Third Party Advisory
• https://www.oracle.com/security-alerts/cpuoct2021.html
• https://kc.mcafee.com/corporate/index?page=content&id=SB10366
• https://www.oracle.com/security-alerts/cpujan2022.html
• https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
• https://www.oracle.com/security-alerts/cpuapr2022.html

 

Keywords

NVD

 

CVE-2021-23840

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures