What’s Vulnerable › Vulnerabilities

CVE-2019-18874

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-11-12 · updated 2026-06-17
• Weakness: CWE-415

Description

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.

Affected products

• Psutil Project Psutil: through 5.6.5

References

• https://github.com/giampaolo/psutil/pull/1616
• https://lists.debian.org/debian-lts-announce/2019/11/msg00018.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2P7QI7MOTZTFXQYU23CP3RAWXCERMOAS/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OLETTJYZL2SMBUI4Q2NGBMGPDPP54SRG/
• https://usn.ubuntu.com/4204-1/
• https://github.com/giampaolo/psutil/pull/1616
• https://lists.debian.org/debian-lts-announce/2019/11/msg00018.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2P7QI7MOTZTFXQYU23CP3RAWXCERMOAS/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OLETTJYZL2SMBUI4Q2NGBMGPDPP54SRG/
• https://usn.ubuntu.com/4204-1/

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