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PYSEC-2020-100
Vulnerability from pysec - Published: 2020-11-12 14:15 - Updated: 2021-11-11 23:07It was found that python-rsa is vulnerable to Bleichenbacher timing attacks. An attacker can use this flaw via the RSA decryption API to decrypt parts of the cipher text encrypted with RSA.
| Name | purl | rsa | pkg:pypi/rsa |
|---|
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "rsa",
"purl": "pkg:pypi/rsa"
},
"ranges": [
{
"events": [
{
"introduced": "2.1"
},
{
"fixed": "4.7"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.0",
"3.0.1",
"3.1",
"3.1.1",
"3.1.2",
"3.1.3",
"3.1.4",
"3.2",
"3.2.1",
"3.2.2",
"3.2.3",
"3.3",
"3.4",
"3.4.1",
"3.4.2",
"4.0",
"4.1",
"4.1.1",
"4.2",
"4.3",
"4.4",
"4.4.1",
"4.5",
"4.6"
]
}
],
"aliases": [
"CVE-2020-25658",
"GHSA-xrx6-fmxq-rjj2"
],
"details": "It was found that python-rsa is vulnerable to Bleichenbacher timing attacks. An attacker can use this flaw via the RSA decryption API to decrypt parts of the cipher text encrypted with RSA.",
"id": "PYSEC-2020-100",
"modified": "2021-11-11T23:07:45.968611Z",
"published": "2020-11-12T14:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25658"
},
{
"type": "REPORT",
"url": "https://github.com/sybrenstuvel/python-rsa/issues/165"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-xrx6-fmxq-rjj2"
}
]
}
BREW-AWS-SHELL-CVE-2020-25658 (GHSA-XRX6-FMXQ-RJJ2)
Vulnerability from osv_homebrew – Published: 2026-08-13 16:37 – Updated: 2026-09-09 23:42 – Source websiteIt was found that python-rsa is vulnerable to Bleichenbacher timing attacks. An attacker can use this flaw via the RSA decryption API to decrypt parts of the cipher text encrypted with RSA
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "rsa",
"resource_purl": "pkg:pypi/rsa@4.7.2",
"upstream_fixed_in": "4.7"
},
"package": {
"ecosystem": "Homebrew",
"name": "aws-shell",
"purl": "pkg:brew/aws-shell"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.2.2_15"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/rsa@4.7.2",
"name": "rsa",
"resource": "rsa",
"strategy": "registry",
"subject_version": "4.7.2"
}
]
},
"details": "It was found that python-rsa is vulnerable to Bleichenbacher timing attacks. An attacker can use this flaw via the RSA decryption API to decrypt parts of the cipher text encrypted with RSA",
"id": "BREW-aws-shell-CVE-2020-25658",
"modified": "2026-09-09T23:42:43Z",
"published": "2026-08-13T16:37:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25658"
},
{
"type": "WEB",
"url": "https://github.com/sybrenstuvel/python-rsa/issues/165"
},
{
"type": "WEB",
"url": "https://github.com/sybrenstuvel/python-rsa/commit/dae8ce0d85478e16f2368b2341632775313d41ed"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2020-25658"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1889972"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25658"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-xrx6-fmxq-rjj2"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/rsa/PYSEC-2020-100.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/sybrenstuvel/python-rsa"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2022:1716"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2021:0637"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2SAF67KDGSOHLVFTRDOHNEAFDRSSYIWA"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APF364QJ2IYLPDNVFBOEJ24QP2WLVLJP"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QY4PJWTYSOV7ZEYZVMYIF6XRU73CY6O7"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:5634"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Timing attacks in python-rsa",
"upstream": [
"GHSA-xrx6-fmxq-rjj2",
"CVE-2020-25658",
"PYSEC-2020-100"
]
}
BREW-DUPLICITY-CVE-2020-25658 (GHSA-XRX6-FMXQ-RJJ2)
Vulnerability from osv_homebrew – Published: 2026-08-13 16:44 – Updated: 2026-09-09 23:52 – Source websiteIt was found that python-rsa is vulnerable to Bleichenbacher timing attacks. An attacker can use this flaw via the RSA decryption API to decrypt parts of the cipher text encrypted with RSA
| URL | Type | ||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "rsa",
"resource_purl": "pkg:pypi/rsa@4.9.1",
"upstream_fixed_in": "4.7"
},
"package": {
"ecosystem": "Homebrew",
"name": "duplicity",
"purl": "pkg:brew/duplicity"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.1.0_2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/rsa@4.9.1",
"name": "rsa",
"resource": "rsa",
"strategy": "registry",
"subject_version": "4.9.1"
}
]
},
"details": "It was found that python-rsa is vulnerable to Bleichenbacher timing attacks. An attacker can use this flaw via the RSA decryption API to decrypt parts of the cipher text encrypted with RSA",
"id": "BREW-duplicity-CVE-2020-25658",
"modified": "2026-09-09T23:52:34Z",
"published": "2026-08-13T16:44:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25658"
},
{
"type": "WEB",
"url": "https://github.com/sybrenstuvel/python-rsa/issues/165"
},
{
"type": "WEB",
"url": "https://github.com/sybrenstuvel/python-rsa/commit/dae8ce0d85478e16f2368b2341632775313d41ed"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2020-25658"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1889972"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25658"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-xrx6-fmxq-rjj2"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/rsa/PYSEC-2020-100.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/sybrenstuvel/python-rsa"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2022:1716"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2021:0637"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2SAF67KDGSOHLVFTRDOHNEAFDRSSYIWA"
},
{
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"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APF364QJ2IYLPDNVFBOEJ24QP2WLVLJP"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QY4PJWTYSOV7ZEYZVMYIF6XRU73CY6O7"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:5634"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Timing attacks in python-rsa",
"upstream": [
"GHSA-xrx6-fmxq-rjj2",
"CVE-2020-25658",
"PYSEC-2020-100"
]
}
BREW-GLANCES-CVE-2020-25658 (GHSA-XRX6-FMXQ-RJJ2)
Vulnerability from osv_homebrew – Published: 2026-08-13 16:51 – Updated: 2026-09-10 19:18 – Source websiteIt was found that python-rsa is vulnerable to Bleichenbacher timing attacks. An attacker can use this flaw via the RSA decryption API to decrypt parts of the cipher text encrypted with RSA
| URL | Type | ||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "rsa",
"resource_purl": "pkg:pypi/rsa@4.9.1",
"upstream_fixed_in": "4.7"
},
"package": {
"ecosystem": "Homebrew",
"name": "glances",
"purl": "pkg:brew/glances"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.5.6"
}
],
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}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
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"key": "pkg:pypi/rsa@4.9.1",
"name": "rsa",
"resource": "rsa",
"strategy": "registry",
"subject_version": "4.9.1"
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]
},
"details": "It was found that python-rsa is vulnerable to Bleichenbacher timing attacks. An attacker can use this flaw via the RSA decryption API to decrypt parts of the cipher text encrypted with RSA",
"id": "BREW-glances-CVE-2020-25658",
"modified": "2026-09-10T19:18:35Z",
"published": "2026-08-13T16:51:23Z",
"references": [
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{
"type": "WEB",
"url": "https://github.com/sybrenstuvel/python-rsa/issues/165"
},
{
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"url": "https://github.com/sybrenstuvel/python-rsa/commit/dae8ce0d85478e16f2368b2341632775313d41ed"
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{
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"url": "https://github.com/sybrenstuvel/python-rsa"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2022:1716"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2021:0637"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2SAF67KDGSOHLVFTRDOHNEAFDRSSYIWA"
},
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},
{
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],
"summary": "Timing attacks in python-rsa",
"upstream": [
"GHSA-xrx6-fmxq-rjj2",
"CVE-2020-25658",
"PYSEC-2020-100"
]
}
CVE-2020-25658 (GCVE-0-2020-25658)
Vulnerability from cvelistv5 – Published: 2020-11-12 13:48 – Updated: 2024-08-04 15:40| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
| https://github.com/sybrenstuvel/python-rsa/issues/165 | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| Vendor | Product | Version | |
|---|---|---|---|
| Sybren A. Stüvel | python-rsa |
Affected:
after 3.0 (inclusive)
|
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GHSA-XRX6-FMXQ-RJJ2
Vulnerability from github – Published: 2021-04-30 17:35 – Updated: 2024-10-26 22:33It was found that python-rsa is vulnerable to Bleichenbacher timing attacks. An attacker can use this flaw via the RSA decryption API to decrypt parts of the cipher text encrypted with RSA
{
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"severity": "HIGH"
},
"details": "It was found that python-rsa is vulnerable to Bleichenbacher timing attacks. An attacker can use this flaw via the RSA decryption API to decrypt parts of the cipher text encrypted with RSA",
"id": "GHSA-xrx6-fmxq-rjj2",
"modified": "2024-10-26T22:33:21Z",
"published": "2021-04-30T17:35:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25658"
},
{
"type": "WEB",
"url": "https://github.com/sybrenstuvel/python-rsa/issues/165"
},
{
"type": "WEB",
"url": "https://github.com/sybrenstuvel/python-rsa/commit/dae8ce0d85478e16f2368b2341632775313d41ed"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2020-25658"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1889972"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25658"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-xrx6-fmxq-rjj2"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/rsa/PYSEC-2020-100.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/sybrenstuvel/python-rsa"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2022:1716"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2021:0637"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2SAF67KDGSOHLVFTRDOHNEAFDRSSYIWA"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APF364QJ2IYLPDNVFBOEJ24QP2WLVLJP"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QY4PJWTYSOV7ZEYZVMYIF6XRU73CY6O7"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2SAF67KDGSOHLVFTRDOHNEAFDRSSYIWA"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/APF364QJ2IYLPDNVFBOEJ24QP2WLVLJP"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QY4PJWTYSOV7ZEYZVMYIF6XRU73CY6O7"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:5634"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Timing attacks in python-rsa"
}
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.
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.
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.