一、漏洞信息
漏洞编号：CVE-2021-23840
漏洞归属组件：openssl
漏洞归属的版本：1.1.1f,1.1.1d
CVSS V3.0分值：
BaseScore：7.5 High
Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
漏洞简述：
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).
漏洞公开时间：2021-02-17 01:15
漏洞创建时间：2021-04-01 17:00:55
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2021-23840
漏洞分析指导链接：
https://gitee.com/opengauss/security/blob/master/cve/manual.md
二、漏洞分析结构反馈
影响性分析说明：
当前版本是1.1.1g，不涉及该漏洞openGauss评分:
openGauss评分：

受影响版本排查(受影响/不受影响)：
1.2.0.0:不受影响
2.master:不受影响