Описание
Server or client applications that call the SSL_check_chain() function during or after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the "signature_algorithms_cert" TLS extension. The crash occurs if an invalid or unrecognised signature algorithm is received from the peer. This could be exploited by a malicious peer in a Denial of Service attack. OpenSSL version 1.1.1d, 1.1.1e, and 1.1.1f are affected by this issue. This issue did not affect OpenSSL versions prior to 1.1.1d. Fixed in OpenSSL 1.1.1g (Affected 1.1.1d-1.1.1f).
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | not-affected | code not present |
| devel | not-affected | code not compiled |
| eoan | not-affected | code not present |
| esm-apps/bionic | not-affected | code not present |
| esm-apps/xenial | not-affected | code not present |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/focal | not-affected | code not compiled |
| focal | not-affected | code not compiled |
| precise/esm | DNE | |
| trusty | ignored | end of standard support |
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| Релиз | Статус | Примечание |
|---|---|---|
| bionic | not-affected | code not present |
| devel | released | 1.1.1f-1ubuntu2 |
| eoan | not-affected | code not present |
| esm-infra-legacy/trusty | not-affected | code not present |
| esm-infra/bionic | not-affected | code not present |
| esm-infra/focal | released | 1.1.1f-1ubuntu2 |
| esm-infra/xenial | not-affected | code not present |
| focal | released | 1.1.1f-1ubuntu2 |
| precise/esm | not-affected | code not present |
| trusty | ignored | end of standard support |
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| Релиз | Статус | Примечание |
|---|---|---|
| bionic | not-affected | code not present |
| devel | DNE | |
| eoan | DNE | |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/bionic | not-affected | code not present |
| esm-infra/focal | DNE | |
| focal | DNE | |
| precise/esm | DNE | |
| trusty | DNE | |
| trusty/esm | DNE |
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5 Medium
CVSS2
7.5 High
CVSS3
Связанные уязвимости
Server or client applications that call the SSL_check_chain() function during or after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the "signature_algorithms_cert" TLS extension. The crash occurs if an invalid or unrecognised signature algorithm is received from the peer. This could be exploited by a malicious peer in a Denial of Service attack. OpenSSL version 1.1.1d, 1.1.1e, and 1.1.1f are affected by this issue. This issue did not affect OpenSSL versions prior to 1.1.1d. Fixed in OpenSSL 1.1.1g (Affected 1.1.1d-1.1.1f).
Server or client applications that call the SSL_check_chain() function during or after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the "signature_algorithms_cert" TLS extension. The crash occurs if an invalid or unrecognised signature algorithm is received from the peer. This could be exploited by a malicious peer in a Denial of Service attack. OpenSSL version 1.1.1d, 1.1.1e, and 1.1.1f are affected by this issue. This issue did not affect OpenSSL versions prior to 1.1.1d. Fixed in OpenSSL 1.1.1g (Affected 1.1.1d-1.1.1f).
Server or client applications that call the SSL_check_chain() function ...
5 Medium
CVSS2
7.5 High
CVSS3