Описание
The BN_mod_sqrt() function, which computes a modular square root, contains a bug that can cause it to loop forever for non-prime moduli. Internally this function is used when parsing certificates that contain elliptic curve public keys in compressed form or explicit elliptic curve parameters with a base point encoded in compressed form. It is possible to trigger the infinite loop by crafting a certificate that has invalid explicit curve parameters. Since certificate parsing happens prior to verification of the certificate signature, any process that parses an externally supplied certificate may thus be subject to a denial of service attack. The infinite loop can also be reached when parsing crafted private keys as they can contain explicit elliptic curve parameters. Thus vulnerable situations include: - TLS clients consuming server certificates - TLS servers consuming client certificates - Hosting providers taking certificates or private keys from customers - Certificate authorities...
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | ignored | end of standard support, was needs-triage |
| devel | not-affected | 2022.11-2 |
| esm-apps/bionic | needs-triage | |
| esm-apps/xenial | needs-triage | |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/focal | needs-triage | |
| focal | ignored | end of standard support, was needs-triage |
| impish | ignored | end of life |
| jammy | needs-triage | |
| kinetic | not-affected | 2022.05-4 |
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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 | released | 12.22.9~dfsg-1ubuntu3.1 |
| 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 |
| impish | not-affected | uses system openssl1.1 |
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| Релиз | Статус | Примечание |
|---|---|---|
| bionic | released | 1.1.1-1ubuntu2.1~18.04.15 |
| devel | released | 3.0.2-0ubuntu1 |
| esm-infra-legacy/trusty | not-affected | 1.0.1f-1ubuntu2.27+esm5 |
| esm-infra/bionic | not-affected | 1.1.1-1ubuntu2.1~18.04.15 |
| esm-infra/focal | not-affected | 1.1.1f-1ubuntu2.12 |
| esm-infra/xenial | released | 1.0.2g-1ubuntu4.20+esm2 |
| fips-preview/jammy | released | 3.0.2-0ubuntu1 |
| fips-updates/bionic | released | 1.1.1-1ubuntu2.fips.2.1~18.04.15 |
| fips-updates/focal | released | 1.1.1f-1ubuntu2.fips.12 |
| fips-updates/jammy | released | 3.0.2-0ubuntu1 |
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| Релиз | Статус | Примечание |
|---|---|---|
| bionic | released | 1.0.2n-1ubuntu5.8 |
| devel | DNE | |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/bionic | not-affected | 1.0.2n-1ubuntu5.8 |
| esm-infra/focal | DNE | |
| focal | DNE | |
| impish | DNE | |
| jammy | DNE | |
| kinetic | DNE | |
| lunar | DNE |
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EPSS
5 Medium
CVSS2
7.5 High
CVSS3
Связанные уязвимости
The BN_mod_sqrt() function, which computes a modular square root, contains a bug that can cause it to loop forever for non-prime moduli. Internally this function is used when parsing certificates that contain elliptic curve public keys in compressed form or explicit elliptic curve parameters with a base point encoded in compressed form. It is possible to trigger the infinite loop by crafting a certificate that has invalid explicit curve parameters. Since certificate parsing happens prior to verification of the certificate signature, any process that parses an externally supplied certificate may thus be subject to a denial of service attack. The infinite loop can also be reached when parsing crafted private keys as they can contain explicit elliptic curve parameters. Thus vulnerable situations include: - TLS clients consuming server certificates - TLS servers consuming client certificates - Hosting providers taking certificates or private keys from customers - Certificate authorities...
The BN_mod_sqrt() function, which computes a modular square root, contains a bug that can cause it to loop forever for non-prime moduli. Internally this function is used when parsing certificates that contain elliptic curve public keys in compressed form or explicit elliptic curve parameters with a base point encoded in compressed form. It is possible to trigger the infinite loop by crafting a certificate that has invalid explicit curve parameters. Since certificate parsing happens prior to verification of the certificate signature, any process that parses an externally supplied certificate may thus be subject to a denial of service attack. The infinite loop can also be reached when parsing crafted private keys as they can contain explicit elliptic curve parameters. Thus vulnerable situations include: - TLS clients consuming server certificates - TLS servers consuming client certificates - Hosting providers taking certificates or private keys from customers - Certificate authorities pa
The BN_mod_sqrt() function, which computes a modular square root, cont ...
EPSS
5 Medium
CVSS2
7.5 High
CVSS3