Описание
An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signature_algorithms extension (where it was present in the initial ClientHello), but includes a signature_algorithms_cert extension then a NULL pointer dereference will result, leading to a crash and a denial of service attack. A server is only vulnerable if it has TLSv1.2 and renegotiation enabled (which is the default configuration). OpenSSL TLS clients are not impacted by this issue. All OpenSSL 1.1.1 versions are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1-1.1.1j).
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | not-affected | |
| devel | not-affected | |
| esm-apps/bionic | not-affected | |
| esm-apps/xenial | not-affected | |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/focal | not-affected | |
| focal | not-affected | |
| groovy | not-affected | |
| hirsute | not-affected | |
| impish | not-affected |
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| Релиз | Статус | Примечание |
|---|---|---|
| bionic | not-affected | uses system openssl1.0 |
| devel | not-affected | uses system openssl1.1 |
| esm-apps/bionic | not-affected | uses system openssl1.0 |
| esm-apps/focal | not-affected | uses system openssl1.1 |
| esm-apps/jammy | not-affected | 12.22.9~dfsg-1ubuntu3 |
| esm-apps/noble | not-affected | uses system openssl1.1 |
| esm-apps/xenial | not-affected | uses system openssl |
| esm-infra-legacy/trusty | not-affected | uses system openssl |
| focal | not-affected | uses system openssl1.1 |
| groovy | not-affected | uses system openssl1.1 |
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| Релиз | Статус | Примечание |
|---|---|---|
| bionic | released | 1.1.1-1ubuntu2.1~18.04.9 |
| devel | released | 1.1.1j-1ubuntu3 |
| esm-infra-legacy/trusty | not-affected | |
| esm-infra/bionic | not-affected | 1.1.1-1ubuntu2.1~18.04.9 |
| esm-infra/focal | not-affected | 1.1.1f-1ubuntu2.3 |
| esm-infra/xenial | not-affected | 1.0.2g-1ubuntu4.19 |
| fips-preview/jammy | released | 1.1.1j-1ubuntu3 |
| fips-updates/bionic | released | 1.1.1-1ubuntu2.fips.2.1~18.04.9.1 |
| fips-updates/focal | released | 1.1.1f-1ubuntu2.fips.7 |
| fips-updates/jammy | released | 1.1.1j-1ubuntu3 |
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| Релиз | Статус | Примечание |
|---|---|---|
| bionic | not-affected | 1.0.2n-1ubuntu5.6 |
| devel | DNE | |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/bionic | not-affected | 1.0.2n-1ubuntu5.6 |
| esm-infra/focal | DNE | |
| focal | DNE | |
| groovy | DNE | |
| hirsute | DNE | |
| impish | DNE | |
| jammy | DNE |
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| Релиз | Статус | Примечание |
|---|---|---|
| bionic | released | 10.18-0ubuntu0.18.04.1 |
| devel | DNE | |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/bionic | not-affected | 10.18-0ubuntu0.18.04.1 |
| esm-infra/focal | DNE | |
| focal | DNE | |
| hirsute | DNE | |
| impish | DNE | |
| jammy | DNE | |
| kinetic | DNE |
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| Релиз | Статус | Примечание |
|---|---|---|
| bionic | DNE | |
| devel | DNE | |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/focal | not-affected | 12.8-0ubuntu0.20.04.1 |
| focal | released | 12.8-0ubuntu0.20.04.1 |
| hirsute | DNE | |
| impish | DNE | |
| jammy | DNE | |
| kinetic | DNE | |
| lunar | DNE |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | DNE | |
| devel | DNE | |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/focal | DNE | |
| focal | DNE | |
| hirsute | released | 13.4-0ubuntu0.21.04.1 |
| impish | released | 13.4-1 |
| jammy | DNE | |
| kinetic | DNE | |
| lunar | DNE |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | DNE | |
| devel | DNE | |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/focal | DNE | |
| focal | DNE | |
| hirsute | DNE | |
| impish | DNE | |
| jammy | DNE | |
| kinetic | DNE | |
| lunar | DNE |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | DNE | |
| devel | DNE | |
| esm-infra-legacy/trusty | deferred | 2019-08-23 |
| esm-infra/focal | DNE | |
| focal | DNE | |
| hirsute | DNE | |
| impish | DNE | |
| jammy | DNE | |
| kinetic | DNE | |
| lunar | DNE |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | DNE | |
| devel | DNE | |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/focal | DNE | |
| esm-infra/xenial | not-affected | code not present |
| focal | DNE | |
| hirsute | DNE | |
| impish | DNE | |
| jammy | DNE | |
| kinetic | DNE |
Показывать по
EPSS
4.3 Medium
CVSS2
5.9 Medium
CVSS3
Связанные уязвимости
An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signature_algorithms extension (where it was present in the initial ClientHello), but includes a signature_algorithms_cert extension then a NULL pointer dereference will result, leading to a crash and a denial of service attack. A server is only vulnerable if it has TLSv1.2 and renegotiation enabled (which is the default configuration). OpenSSL TLS clients are not impacted by this issue. All OpenSSL 1.1.1 versions are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1-1.1.1j).
An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signature_algorithms extension (where it was present in the initial ClientHello), but includes a signature_algorithms_cert extension then a NULL pointer dereference will result, leading to a crash and a denial of service attack. A server is only vulnerable if it has TLSv1.2 and renegotiation enabled (which is the default configuration). OpenSSL TLS clients are not impacted by this issue. All OpenSSL 1.1.1 versions are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1-1.1.1j).
OpenSSL: CVE-2021-3449 NULL pointer deref in signature_algorithms processing
An OpenSSL TLS server may crash if sent a maliciously crafted renegoti ...
EPSS
4.3 Medium
CVSS2
5.9 Medium
CVSS3