UnratedFix available
python2.7, python3.5, python3.6, python3.7 vulnerabilities
Type: advisorySources: OSV
It was discovered that Python incorrectly handled certain pickle files. An attacker could possibly use this issue to consume memory, leading to a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2018-20406) It was discovered that Python incorrectly validated the domain when handling cookies. An attacker could possibly trick Python into sending cookies to the wrong domain. (CVE-2018-20852) Jonathan Birch and Panayiotis Panayiotou discovered that Python incorrectly handled Unicode encoding during NFKC normalization. An attacker could possibly use this issue to obtain sensitive information. (CVE-2019-9636, CVE-2019-10160) Colin Read and Nicolas Edet discovered that Python incorrectly handled parsing certain X509 certificates. An attacker could possibly use this issue to cause Python to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2019-5010) It was discovered that Python incorrectly handled certain urls. A remote attacker could possibly use this issue to perform CRLF injection attacks. (CVE-2019-9740, CVE-2019-9947) Sihoon Lee discovered that Python incorrectly handled the local_file: scheme. A remote attacker could possibly use this issue to bypass blocklist meschanisms. (CVE-2019-9948)
- Products
- python2.7, python3.5, python3.6
- Affected versions
- 2.7.10-4ubuntu1, 2.7.10-4ubuntu2, 2.7.11-2, 2.7.11-3, 2.7.11-4, 2.7.11-6, 2.7.11-7, 2.7.11-7ubuntu1, 2.7.12-1ubuntu0~16.04.1, 2.7.12-1ubuntu0~16.04.2, 2.7.12-1ubuntu0~16.04.3, 2.7.12-1ubuntu0~16.04.4, 2.7.12-1~16.04, 2.7.14-2ubuntu2, 2.7.14-4, 2.7.14-6, 2.7.14-7, 2.7.14-8, 2.7.15-4ubuntu4~18.04, 2.7.15~rc1-1, 2.7.15~rc1-1ubuntu0.1, 3.5.0-3, 3.5.0-3ubuntu1, 3.5.1-1, 3.5.1-10, 3.5.1-2, 3.5.1-3, 3.5.1-5, 3.5.1-6ubuntu1, 3.5.1-6ubuntu2, 3.5.1-9ubuntu1, 3.5.1~rc1-2ubuntu1, 3.5.2-2ubuntu0~16.04.1, 3.5.2-2ubuntu0~16.04.2, 3.5.2-2ubuntu0~16.04.3, 3.5.2-2ubuntu0~16.04.4, 3.5.2-2ubuntu0~16.04.5, 3.5.2-2~16.01, 3.5.2-2~16.04, 3.6.3-1ubuntu1, 3.6.4-1, 3.6.4-2, 3.6.4-3build1, 3.6.4-4, 3.6.4~rc1-1, 3.6.4~rc1-2, 3.6.5-3, 3.6.5~rc1-1, 3.6.6-1~18.04, 3.6.7-1~18.04, 3.6.8-1~18.04.1
- Fixed versions
- 2.7.12-1ubuntu0~16.04.8, 2.7.15-4ubuntu4~18.04.1, 3.5.2-2ubuntu0~16.04.8, 3.6.8-1~18.04.2
- CVEs
- CVE-2018-20406, CVE-2018-20852, CVE-2019-10160, CVE-2019-5010, CVE-2019-9636, CVE-2019-9740, CVE-2019-9947, CVE-2019-9948
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 28 Oct 2026, 10:04 UTC · Revision 1
Source evidence
python2.7, python3.5, python3.6, python3.7 vulnerabilities
core-osv · Original sourcePublished 9 Sept 2019, 17:22 UTC
It was discovered that Python incorrectly handled certain pickle files. An attacker could possibly use this issue to consume memory, leading to a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2018-20406) It was discovered that Python incorrectly validated the domain when handling cookies. An attacker could possibly trick Python into sending cookies to the wrong domain. (CVE-2018-20852) Jonathan Birch and Panayiotis Panayiotou discovered that Python incorrectly handled Unicode encoding during NFKC normalization. An attacker could possibly use this issue to obtain sensitive information. (CVE-2019-9636, CVE-2019-10160) Colin Read and Nicolas Edet discovered that Python incorrectly handled parsing certain X509 certificates. An attacker could possibly use this issue to cause Python to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2019-5010) It was discovered that Python incorrectly handled certain urls. A remote attacker could possibly use this issue to perform CRLF injection attacks. (CVE-2019-9740, CVE-2019-9947) Sihoon Lee discovered that Python incorrectly handled the local_file: scheme. A remote attacker could possibly use this issue to bypass blocklist meschanisms. (CVE-2019-9948)
osv:USN-4127-1
python2.7
Fixed versions: 2.7.12-1ubuntu0~16.04.8
python3.5
Fixed versions: 3.5.2-2ubuntu0~16.04.8
python2.7
Fixed versions: 2.7.15-4ubuntu4~18.04.1
python3.6
Fixed versions: 3.6.8-1~18.04.2
Complete source record
{
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"url": "https://osv.dev/vulnerability/USN-4127-1",
"method": "structured",
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"title": "python2.7, python3.5, python3.6, python3.7 vulnerabilities",
"summary": "It was discovered that Python incorrectly handled certain pickle files. An attacker could possibly use this issue to consume memory, leading to a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2018-20406) It was discovered that Python incorrectly validated the domain when handling cookies. An attacker could possibly trick Python into sending cookies to the wrong domain. (CVE-2018-20852) Jonathan Birch and Panayiotis Panayiotou discovered that Python incorrectly handled Unicode encoding during NFKC normalization. An attacker could possibly use this issue to obtain sensitive information. (CVE-2019-9636, CVE-2019-10160) Colin Read and Nicolas Edet discovered that Python incorrectly handled parsing certain X509 certificates. An attacker could possibly use this issue to cause Python to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2019-5010) It was discovered that Python incorrectly handled certain urls. A remote attacker could possibly use this issue to perform CRLF injection attacks. (CVE-2019-9740, CVE-2019-9947) Sihoon Lee discovered that Python incorrectly handled the local_file: scheme. A remote attacker could possibly use this issue to bypass blocklist meschanisms. (CVE-2019-9948)",
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"id": "CVE-2018-20406",
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{
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{
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{
"id": "CVE-2019-9636",
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"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
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}
]
},
{
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{
"type": "CVSS_V3",
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{
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{
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},
{
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},
"ecosystem_specific": {
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},
{
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},
{
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{
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"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2019-5010",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2019-9636",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2019-9740",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"
},
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"modified": "2026-10-08T19:46:44.735260616Z",
"provider": "osv",
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"CVE-2019-10160",
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],
"references": [
"https://ubuntu.com/security/notices/USN-4127-1",
"https://ubuntu.com/security/CVE-2018-20406",
"https://ubuntu.com/security/CVE-2018-20852",
"https://ubuntu.com/security/CVE-2019-5010",
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},
"related_cves": [
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"value": "CVE-2018-20406",
"evidence": "/upstream"
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{
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"evidence": "/upstream"
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{
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],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 104531,
"published_at": "2019-09-09T17:22:13+00:00"
}