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CVE-2019-18874

Good to know:

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Date: November 11, 2019

psutil (aka python-psutil) through 5.6.5 can have a double free. This occurs because of refcount mishandling within a while or for loop that converts system data into a Python object.

Language: Python

Severity Score

Related Resources (19)

https://usn.ubuntu.com/4204-1/
https://github.com/pypa/advisory-database/tree/main/vulns/psutil/PYSEC-2019-41.yaml
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2P7QI7MOTZTFXQYU23CP3RAWXCERMOAS/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2P7QI7MOTZTFXQYU23CP3RAWXCERMOAS
https://github.com/advisories/GHSA-qfc5-mcwq-26q8
https://access.redhat.com/security/cve/CVE-2019-18874
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OLETTJYZL2SMBUI4Q2NGBMGPDPP54SRG/
https://nvd.nist.gov/vuln/detail/CVE-2019-18874
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2P7QI7MOTZTFXQYU23CP3RAWXCERMOAS/
https://security-tracker.debian.org/tracker/CVE-2019-18874
https://lists.debian.org/debian-lts-announce/2019/11/msg00018.html
https://github.com/giampaolo/psutil
https://github.com/giampaolo/psutil/pull/1616
https://github.com/giampaolo/psutil/blob/master/HISTORY.rst#566
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OLETTJYZL2SMBUI4Q2NGBMGPDPP54SRG/
https://usn.ubuntu.com/4204-1
https://github.com/giampaolo/psutil/commit/7d512c8e4442a896d56505be3e78f1156f443465
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OLETTJYZL2SMBUI4Q2NGBMGPDPP54SRG
https://www.mend.io/vulnerability-database/CVE-2019-18874

Severity Score

Weakness Type (CWE)

Double Free

CWE-415

Top Fix

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Upgrade Version

Upgrade to version psutil - 5.6.6

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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