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VuXML IDDescription
96811d4a-04ec-11ec-9b84-d4c9ef517024OpenSSL -- multiple vulnerabilities

The OpenSSL project reports:

SM2 Decryption Buffer Overflow (CVE-2021-3711: High)

Read buffer overruns processing ASN.1 strings (CVE-2021-3712: Moderate)


Discovery 2021-08-24
Entry 2021-08-24
Modified 2021-08-25
openssl
< 1.1.1l,1

openssl-devel
< 3.0.0.b3

FreeBSD
ge 13.0 lt 13.0_4

ge 12.2 lt 12.2_10

CVE-2021-3711
CVE-2021-3712
https://www.openssl.org/news/secadv/20210824.txt
SA-21:16.openssl
0132ca5b-5d11-11ec-8be6-d4c9ef517024OpenSSL -- Certificate validation issue

The OpenSSL project reports:

Invalid handling of X509_verify_cert() internal errors in libssl (Moderate)

Internally libssl in OpenSSL calls X509_verify_cert() on the client side to verify a certificate supplied by a server. That function may return a negative return value to indicate an internal error (for example out of memory). Such a negative return value is mishandled by OpenSSL and will cause an IO function (such as SSL_connect() or SSL_do_handshake()) to not indicate success and a subsequent call to SSL_get_error() to return the value SSL_ERROR_WANT_RETRY_VERIFY. This return value is only supposed to be returned by OpenSSL if the application has previously called SSL_CTX_set_cert_verify_callback(). Since most applications do not do this the SSL_ERROR_WANT_RETRY_VERIFY return value from SSL_get_error() will be totally unexpected and applications may not behave correctly as a result. The exact behaviour will depend on the application but it could result in crashes, infinite loops or other similar incorrect responses.


Discovery 2021-12-14
Entry 2021-12-14
openssl-devel
< 3.0.1

CVE-2021-4044
https://www.openssl.org/news/secadv/20211214.txt