CVE-2021-23840

Updated: 2024-06-21 20:13:48.478307

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).


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x MEDIUM 5
CVSS Version 3.x HIGH 7.5

Status

OS name Project name Version Score Severity Status Errata Last updated
CentOS 6 ELS openssl 1.0.1e 7.5 HIGH Released CLSA-2021:1632261785 2022-05-05 12:00:53
CentOS 6 ELS mysql 5.1.73 7.5 HIGH Not Vulnerable 2022-04-19 21:50:04
CentOS 7 ELS openssl 1.0.2k 7.5 HIGH Already Fixed 2023-11-07 08:36:18
CentOS 8.4 ELS openssl 1.1.1g 7.5 HIGH Released CLSA-2022:1643727489 2022-04-19 21:49:55
CentOS 8.4 ELS mysql 8.0.26 7.5 HIGH Not Vulnerable 2022-08-01 05:06:30
CentOS 8.5 ELS openssl 1.1.1k 7.5 HIGH Not Vulnerable 2022-04-19 21:49:55
CentOS 8.5 ELS mysql 8.0.26 7.5 HIGH Not Vulnerable 2022-04-19 21:50:04
CloudLinux 6 ELS openssl 1.0.1e 7.5 HIGH Released 2022-04-19 21:49:55
CloudLinux 6 ELS mysql 5.1.73 7.5 HIGH Not Vulnerable 2022-04-19 21:50:04
Oracle Linux 6 ELS openssl 1.0.1e 7.5 HIGH Released CLSA-2021:1634922862 2022-04-19 21:49:55
Total: 15