CVE-2019-9740

An issue was discovered in urllib2 in Python 2.x through 2.7.16 and urllib in Python 3.x through 3.7.3. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with \r\n (specifically in the query string after a ? character) followed by an HTTP header or a Redis command. This is fixed in: v2.7.17, v2.7.17rc1, v2.7.18, v2.7.18rc1; v3.5.10, v3.5.10rc1, v3.5.8, v3.5.8rc1, v3.5.8rc2, v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12, v3.6.9, v3.6.9rc1; v3.7.4, v3.7.4rc1, v3.7.4rc2, v3.7.5, v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1, v3.7.8, v3.7.8rc1, v3.7.9.

CVSS v3.0 6.1 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.1^/10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

4.3^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:N/I:P/A:N

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://bugs.python.org/issue36276	Exploit Issue Tracking Vendor Advisory
http://www.securityfocus.com/bid/107466	Third Party Advisory VDB Entry
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JXASHCDD4PQFKTMKQN4YOP5ZH366ABN4/	Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1260	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JMWSKTNOHSUOT3L25QFJAVCFYZX46FYK/	Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20190619-0005/	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/06/msg00023.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/06/msg00022.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/06/msg00026.html	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/44TS66GJMO5H3RLMVZEBGEFTB6O2LJJU/	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2ORNTF62QPLMJXIQ7KTZQ2776LMIXEKL/	Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2030	Third Party Advisory
https://usn.ubuntu.com/4127-2/	Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00039.html	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00041.html	Mailing List Third Party Advisory
https://usn.ubuntu.com/4127-1/	Third Party Advisory
https://seclists.org/bugtraq/2019/Oct/29	Mailing List Third Party Advisory
http://packetstormsecurity.com/files/154927/Slackware-Security-Advisory-python-Updates.html	Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2019:3335	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3520	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3725	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M34WOYCDKTDE5KLUACE2YIEH7D37KHRX/	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JCPGLTTOBB3QEARDX4JOYURP6ELNNA2V/	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4X3HW5JRZ7GCPSR7UHJOLD7AWLTQCDVR/	Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202003-26	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/02/04/2	Mailing List Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:python:python::::::::
	cpe:2.3:a:python:python::::::::
	cpe:2.3:a:python:python::::::::
	cpe:2.3:a:python:python::::::::

Information

Published : 2019-03-12 20:29

Updated : 2022-08-16 06:00

NVD link : CVE-2019-9740

Mitre link : CVE-2019-9740

JSON object : View

CWE

CWE-93

Improper Neutralization of CRLF Sequences ('CRLF Injection')

Products Affected

python

python

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"http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00041.html", "name": "openSUSE-SU-2019:2133", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "SUSE"}, {"url": "https://usn.ubuntu.com/4127-1/", "name": "USN-4127-1", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "https://seclists.org/bugtraq/2019/Oct/29", "name": "20191021 [slackware-security] python (SSA:2019-293-01)", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "BUGTRAQ"}, {"url": "http://packetstormsecurity.com/files/154927/Slackware-Security-Advisory-python-Updates.html", "name": "http://packetstormsecurity.com/files/154927/Slackware-Security-Advisory-python-Updates.html", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "MISC"}, {"url": "https://access.redhat.com/errata/RHSA-2019:3335", "name": "RHSA-2019:3335", "tags": ["Third Party Advisory"], "refsource": "REDHAT"}, {"url": "https://access.redhat.com/errata/RHSA-2019:3520", "name": "RHSA-2019:3520", "tags": ["Third Party Advisory"], "refsource": "REDHAT"}, {"url": "https://access.redhat.com/errata/RHSA-2019:3725", "name": "RHSA-2019:3725", "tags": ["Third Party Advisory"], "refsource": "REDHAT"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M34WOYCDKTDE5KLUACE2YIEH7D37KHRX/", "name": "FEDORA-2019-b06ec6159b", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "FEDORA"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JCPGLTTOBB3QEARDX4JOYURP6ELNNA2V/", "name": "FEDORA-2019-d202cda4f8", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "FEDORA"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4X3HW5JRZ7GCPSR7UHJOLD7AWLTQCDVR/", "name": "FEDORA-2019-57462fa10d", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "FEDORA"}, {"url": "https://security.gentoo.org/glsa/202003-26", "name": "GLSA-202003-26", "tags": ["Third Party Advisory"], "refsource": "GENTOO"}, {"url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html", "name": "[debian-lts-announce] 20200715 [SECURITY] [DLA 2280-1] python3.5 security update", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html", "name": "[debian-lts-announce] 20200822 [SECURITY] [DLA 2337-1] python2.7 security update", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "http://www.openwall.com/lists/oss-security/2021/02/04/2", "name": "[oss-security] 20210204 [CVE-2020-15693, CVE-2020-15694] Nim - stdlib Httpclient - Header Crlf Injection & Server Response Validation", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "https://www.oracle.com/security-alerts/cpujul2022.html", "name": "N/A", "tags": ["Third Party Advisory"], "refsource": "N/A"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "An issue was discovered in urllib2 in Python 2.x through 2.7.16 and urllib in Python 3.x through 3.7.3. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with \\r\\n (specifically in the query string after a ? character) followed by an HTTP header or a Redis command. This is fixed in: v2.7.17, v2.7.17rc1, v2.7.18, v2.7.18rc1; v3.5.10, v3.5.10rc1, v3.5.8, v3.5.8rc1, v3.5.8rc2, v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12, v3.6.9, v3.6.9rc1; v3.7.4, v3.7.4rc1, v3.7.4rc2, v3.7.5, v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1, v3.7.8, v3.7.8rc1, v3.7.9."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-93"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2019-9740", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 4.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}, "baseMetricV3": {"cvssV3": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.8}}, "publishedDate": "2019-03-13T03:29Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "3.6.9", "versionStartIncluding": "3.6.0"}, {"cpe23Uri": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "3.7.4", "versionStartIncluding": "3.7.0"}, {"cpe23Uri": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "3.5.8", "versionStartIncluding": "3.5.0"}, {"cpe23Uri": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "2.7.17", "versionStartIncluding": "2.0"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2022-08-16T13:00Z"}

6.1 /10

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

4.3 /10

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

JSON object

Attach tags to CVE-2019-9740

6.1^/10

4.3^/10

Attach tags to `CVE-2019-9740`