Описание
OpenSSH 7.7 through 7.9 and 8.x before 8.1, when compiled with an experimental key type, has a pre-authentication integer overflow if a client or server is configured to use a crafted XMSS key. This leads to memory corruption and local code execution because of an error in the XMSS key parsing algorithm. NOTE: the XMSS implementation is considered experimental in all released OpenSSH versions, and there is no supported way to enable it when building portable OpenSSH.
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | not-affected | code not present |
| devel | not-affected | code not built |
| disco | not-affected | code not built |
| esm-infra-legacy/trusty | not-affected | code not present |
| esm-infra/bionic | not-affected | code not present |
| esm-infra/xenial | not-affected | code not present |
| precise/esm | not-affected | code not present |
| trusty | ignored | end of standard support |
| trusty/esm | not-affected | code not present |
| upstream | needs-triage |
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| Релиз | Статус | Примечание |
|---|---|---|
| bionic | not-affected | code not present |
| devel | not-affected | code not present |
| disco | not-affected | code not present |
| esm-apps/bionic | not-affected | code not present |
| esm-infra-legacy/trusty | DNE | |
| precise/esm | DNE | |
| trusty | DNE | |
| trusty/esm | DNE | |
| upstream | ignored | frozen on openssh 7.5p |
| xenial | DNE |
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EPSS
4.4 Medium
CVSS2
7.8 High
CVSS3
Связанные уязвимости
OpenSSH 7.7 through 7.9 and 8.x before 8.1, when compiled with an experimental key type, has a pre-authentication integer overflow if a client or server is configured to use a crafted XMSS key. This leads to memory corruption and local code execution because of an error in the XMSS key parsing algorithm. NOTE: the XMSS implementation is considered experimental in all released OpenSSH versions, and there is no supported way to enable it when building portable OpenSSH.
OpenSSH 7.7 through 7.9 and 8.x before 8.1, when compiled with an experimental key type, has a pre-authentication integer overflow if a client or server is configured to use a crafted XMSS key. This leads to memory corruption and local code execution because of an error in the XMSS key parsing algorithm. NOTE: the XMSS implementation is considered experimental in all released OpenSSH versions, and there is no supported way to enable it when building portable OpenSSH.
OpenSSH 7.7 through 7.9 and 8.x before 8.1, when compiled with an expe ...
OpenSSH 7.7 through 7.9 and 8.x before 8.1, when compiled with an experimental key type, has a pre-authentication integer overflow if a client or server is configured to use a crafted XMSS key. This leads to memory corruption and remote code execution because of an error in the XMSS key parsing algorithm. NOTE: the XMSS implementation is considered experimental in all released OpenSSH versions, and there is no supported way to enable it when building portable OpenSSH.
EPSS
4.4 Medium
CVSS2
7.8 High
CVSS3