Описание
During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o).
| Релиз | Статус | Примечание |
|---|---|---|
| artful | released | 1.0.2g-1ubuntu13.6 |
| bionic | released | 1.1.0g-2ubuntu4.1 |
| cosmic | released | 1.1.0g-2ubuntu5 |
| devel | released | 1.1.0g-2ubuntu5 |
| disco | released | 1.1.0g-2ubuntu5 |
| esm-infra-legacy/trusty | released | 1.0.1f-1ubuntu2.26 |
| esm-infra/bionic | released | 1.1.0g-2ubuntu4.1 |
| esm-infra/xenial | released | 1.0.2g-1ubuntu4.13 |
| precise/esm | not-affected | 1.0.1-4ubuntu5.43 |
| trusty | released | 1.0.1f-1ubuntu2.26 |
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| Релиз | Статус | Примечание |
|---|---|---|
| artful | DNE | |
| bionic | DNE | |
| cosmic | DNE | |
| devel | DNE | |
| disco | DNE | |
| esm-infra-legacy/trusty | DNE | trusty/esm was DNE [trusty was needs-triage] |
| precise/esm | DNE | |
| trusty | ignored | end of standard support |
| trusty/esm | DNE | trusty was needs-triage |
| upstream | needs-triage |
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| Релиз | Статус | Примечание |
|---|---|---|
| artful | DNE | |
| bionic | released | 1.0.2n-1ubuntu5.1 |
| cosmic | released | 1.0.2n-1ubuntu6 |
| devel | DNE | |
| disco | DNE | |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/bionic | released | 1.0.2n-1ubuntu5.1 |
| precise/esm | DNE | |
| trusty | DNE | |
| trusty/esm | DNE |
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5 Medium
CVSS2
7.5 High
CVSS3
Связанные уязвимости
During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o).
During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o).
During key agreement in a TLS handshake using a DH(E) based ciphersuit ...
5 Medium
CVSS2
7.5 High
CVSS3