Overview
- Description
- Constructed ASN.1 types with a recursive definition (such as can be found in PKCS7) could eventually exceed the stack given malicious input with excessive recursion. This could result in a Denial Of Service attack. There are no such structures used within SSL/TLS that come from untrusted sources so this is considered safe. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g). Fixed in OpenSSL 1.0.2o (Affected 1.0.2b-1.0.2n).
- Source
- openssl-security@openssl.org
- NVD status
- Modified
Risk scores
CVSS 3.0
- Type
- Primary
- Base score
- 6.5
- Impact score
- 3.6
- Exploitability score
- 2.8
- Vector string
- CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Severity
- MEDIUM
CVSS 2.0
- Type
- Primary
- Base score
- 4.3
- Impact score
- 2.9
- Exploitability score
- 8.6
- Vector string
- AV:N/AC:M/Au:N/C:N/I:N/A:P
Weaknesses
- nvd@nist.gov
- CWE-674
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
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"cpeMatch": [
{
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"versionEndIncluding": "1.0.2n",
"versionStartIncluding": "1.0.2b"
},
{
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"vulnerable": true,
"matchCriteriaId": "322768B5-2E14-40B9-A784-8981F4376E13",
"versionEndIncluding": "1.1.0g",
"versionStartIncluding": "1.1.0"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
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"cpeMatch": [
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},
{
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},
{
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{
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]