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redhat/polkitRed Hat Polkit Out-of-Bounds Read and Write Vulnerability

Risk 88
Severity
7.8
Exploited
Input Validation
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

A Local Privilege Escalation vulnerability (from any user to root) was found in polkit's pkexec, a SUID-root program that is installed by default on every major Linux distribution.

1 / 3
Source: Red Hat
First published (updated )
CVE-2021-4034

redhat/kernelUse After Free

Risk 71
Severity
7.8
Use After Free
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

An issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctxlist in some ucmamigrateid situations where ucmaclose is called, aka CID-f5449e74802c.

1 / 4

Remedy

Mitigation for this issue is either not available or the currently available options does not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
First published (updated )
CVE-2020-36385

debian/opensshLast updated 11 February 2025

Risk 66
Severity
7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Last updated 11 February 2025

1 / 2
Source: Ubuntu
First published (updated )
CVE-2021-41617

MIT Kerberos 5Null Pointer Dereference

Risk 38
Severity
6.5
Null Pointer Dereference
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.5 and 1.19.x before 1.19.3 has a NULL pointer dereference in kdc/dotgsreq.c via a FAST inner body that lacks a server field.

First published (updated )
CVE-2021-37750

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