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CVE-2021-3600

Good to know:

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Date: January 8, 2024

It was discovered that the eBPF implementation in the Linux kernel did not properly track bounds information for 32 bit registers when performing div and mod operations. A local attacker could use this to possibly execute arbitrary code.

Language: C

Severity Score

Related Resources (9)

https://security-tracker.debian.org/tracker/CVE-2021-3600
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3600
https://github.com/gregkh/linux/commit/e88b2c6e5a4d9ce30d75391e4d950da74bb2bd90
https://git.kernel.org/linus/e88b2c6e5a4d9ce30d75391e4d950da74bb2bd90
https://nvd.nist.gov/vuln/detail/CVE-2021-3600
https://www.linuxkernelcves.com/cves/CVE-2021-3600
https://access.redhat.com/security/cve/CVE-2021-3600
https://ubuntu.com/security/notices/USN-5003-1
https://www.mend.io/vulnerability-database/CVE-2021-3600

Severity Score

Weakness Type (CWE)

Out-of-bounds Read

CWE-125

Out-of-bounds Write

CWE-787

Top Fix

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Upgrade Version

Upgrade to version linux-libc-headers - 5.13;linux-libc-headers - 5.8

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CVSS v3.1

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

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