GSD-2016-7798
Vulnerability from gsd - Updated: 2017-10-24 00:00Details
The openssl gem for Ruby uses the same initialization vector (IV) in
GCM Mode (aes-*-gcm) when the IV is set before the key, which makes it easier for
context-dependent attackers to bypass the encryption protection mechanism.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2016-7798",
"description": "The openssl gem for Ruby uses the same initialization vector (IV) in GCM Mode (aes-*-gcm) when the IV is set before the key, which makes it easier for context-dependent attackers to bypass the encryption protection mechanism.",
"id": "GSD-2016-7798",
"references": [
"https://www.suse.com/security/cve/CVE-2016-7798.html",
"https://www.debian.org/security/2017/dsa-3966",
"https://ubuntu.com/security/CVE-2016-7798",
"https://advisories.mageia.org/CVE-2016-7798.html",
"https://alas.aws.amazon.com/cve/html/CVE-2016-7798.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"affected": [
{
"package": {
"ecosystem": "RubyGems",
"name": "openssl",
"purl": "pkg:gem/openssl"
}
}
],
"aliases": [
"CVE-2016-7798",
"GHSA-6h88-qjpv-p32m"
],
"details": "The openssl gem for Ruby uses the same initialization vector (IV) in\nGCM Mode (aes-*-gcm) when the IV is set before the key, which makes it easier for\ncontext-dependent attackers to bypass the encryption protection mechanism.\n",
"id": "GSD-2016-7798",
"modified": "2017-10-24T00:00:00.000Z",
"published": "2017-10-24T00:00:00.000Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/ruby/openssl/issues/49"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": 5.0,
"type": "CVSS_V2"
},
{
"score": 7.5,
"type": "CVSS_V3"
}
],
"summary": "Incorrect handling of initialization vector in the GCM mode in OpenSSL"
}
},
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}
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"references": {
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{
"name": "[oss-security] 20160930 Re: CVE Request - Ruby OpenSSL Library - IV Reuse in GCM Mode",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2016/09/30/6"
},
{
"name": "DSA-3966",
"refsource": "DEBIAN",
"url": "https://www.debian.org/security/2017/dsa-3966"
},
{
"name": "https://github.com/ruby/openssl/commit/8108e0a6db133f3375608303fdd2083eb5115062",
"refsource": "CONFIRM",
"url": "https://github.com/ruby/openssl/commit/8108e0a6db133f3375608303fdd2083eb5115062"
},
{
"name": "[oss-security] 20160930 Re: CVE Request - Ruby OpenSSL Library - IV Reuse in GCM Mode",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2016/10/01/2"
},
{
"name": "[debian-lts-announce] 20180714 [SECURITY] [DLA 1421-1] ruby2.1 security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html"
},
{
"name": "[oss-security] 20160919 CVE Request - Ruby OpenSSL Library - IV Reuse in GCM Mode",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2016/09/19/9"
},
{
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},
{
"name": "https://github.com/ruby/openssl/issues/49",
"refsource": "CONFIRM",
"url": "https://github.com/ruby/openssl/issues/49"
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},
"github.com/rubysec/ruby-advisory-db": {
"cve": "2016-7798",
"cvss_v2": 5.0,
"cvss_v3": 7.5,
"date": "2017-10-24",
"description": "The openssl gem for Ruby uses the same initialization vector (IV) in\nGCM Mode (aes-*-gcm) when the IV is set before the key, which makes it easier for\ncontext-dependent attackers to bypass the encryption protection mechanism.\n",
"gem": "openssl",
"ghsa": "6h88-qjpv-p32m",
"patched_versions": [
"\u003e= 2.0.0"
],
"title": "Incorrect handling of initialization vector in the GCM mode in OpenSSL",
"url": "https://github.com/ruby/openssl/issues/49"
},
"gitlab.com": {
"advisories": [
{
"affected_range": "\u003c2.0.0",
"affected_versions": "All versions before 2.0.0",
"cvss_v2": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
"cvss_v3": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"cwe_ids": [
"CWE-1035",
"CWE-326",
"CWE-937"
],
"date": "2018-07-15",
"description": "The openssl gem for Ruby uses the same initialization vector (IV) in GCM Mode (aes-*-gcm) when the IV is set before the key, which makes it easier for context-dependent attackers to bypass the encryption protection mechanism.",
"fixed_versions": [
"2.0.0"
],
"identifier": "CVE-2016-7798",
"identifiers": [
"CVE-2016-7798"
],
"not_impacted": "All versions after 2.0.0",
"package_slug": "gem/openssl",
"pubdate": "2017-01-30",
"solution": "Upgrade to version 2.0.0",
"title": "Cryptographic Issues",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2016-7798",
"http://www.securityfocus.com/bid/93031"
],
"uuid": "6612fdaf-8fde-48d1-b284-c779f95d7895"
}
]
},
"nvd.nist.gov": {
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"nodes": [
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"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:ruby-lang:openssl:*:*:*:*:*:ruby:*:*",
"cpe_name": [],
"versionEndExcluding": "2.0.0",
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
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"cpe_name": [],
"vulnerable": true
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"ID": "CVE-2016-7798"
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"description": {
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"value": "The openssl gem for Ruby uses the same initialization vector (IV) in GCM Mode (aes-*-gcm) when the IV is set before the key, which makes it easier for context-dependent attackers to bypass the encryption protection mechanism."
}
]
},
"problemtype": {
"problemtype_data": [
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"value": "CWE-326"
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},
"references": {
"reference_data": [
{
"name": "https://github.com/ruby/openssl/issues/49",
"refsource": "CONFIRM",
"tags": [
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],
"url": "https://github.com/ruby/openssl/issues/49"
},
{
"name": "https://github.com/ruby/openssl/commit/8108e0a6db133f3375608303fdd2083eb5115062",
"refsource": "CONFIRM",
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],
"url": "https://github.com/ruby/openssl/commit/8108e0a6db133f3375608303fdd2083eb5115062"
},
{
"name": "[oss-security] 20160930 Re: CVE Request - Ruby OpenSSL Library - IV Reuse in GCM Mode",
"refsource": "MLIST",
"tags": [
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"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2016/10/01/2"
},
{
"name": "[oss-security] 20160930 Re: CVE Request - Ruby OpenSSL Library - IV Reuse in GCM Mode",
"refsource": "MLIST",
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"url": "http://www.openwall.com/lists/oss-security/2016/09/30/6"
},
{
"name": "[oss-security] 20160919 CVE Request - Ruby OpenSSL Library - IV Reuse in GCM Mode",
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"url": "http://www.openwall.com/lists/oss-security/2016/09/19/9"
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"url": "http://www.securityfocus.com/bid/93031"
},
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"name": "DSA-3966",
"refsource": "DEBIAN",
"tags": [
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"url": "https://www.debian.org/security/2017/dsa-3966"
},
{
"name": "[debian-lts-announce] 20180714 [SECURITY] [DLA 1421-1] ruby2.1 security update",
"refsource": "MLIST",
"tags": [
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"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html"
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]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": true,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 5.0,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6
}
},
"lastModifiedDate": "2020-11-05T14:56Z",
"publishedDate": "2017-01-30T22:59Z"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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