Name: CVE-2021-33833: Out-of-bounds Write
Creator: Rapid7
Published: 2021-06-09T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2021-33833, CWE-787, CVSS 9.8, EPSS 0.00155

ConnMan (aka Connection Manager) 1.30 through 1.39 has a stack-based buffer overflow in uncompress in dnsproxy.c via NAME, RDATA, or RDLENGTH (for A or AAAA).

CVSS Details

CVSS 3.1 Base Score: 9.8
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Arch Linux	—	Upgrade to the latest version of Arch Linux	Jul 11, 2025	Jun 9, 2021
Debian	—	Upgrade connman	Feb 10, 2022	Jun 9, 2021
Gentoo Linux	—	Upgrade net-misc/connman.	Jul 13, 2021	Jun 9, 2021
Ubuntu	—	Upgrade connmanUpgrade connman (Ubuntu Pro)	Jul 20, 2023	Jun 9, 2021

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CVSS Details

Covered by Rapid7

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