ArchLinuxASA-202106-44[ASA-202106-44] connman: arbitrary code execution
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.004 Low
EPSS
Percentile
73.9%
Arch Linux Security Advisory ASA-202106-44
Severity: High
Date : 2021-06-16
CVE-ID : CVE-2021-33833
Package : connman
Type : arbitrary code execution
Remote : Yes
Link : https://security.archlinux.org/AVG-2055
Summary
The package connman before version 1.40-1 is vulnerable to arbitrary
code execution.
Resolution
Upgrade to 1.40-1.
pacman -Syu “connman>=1.40-1”
The problem has been fixed upstream in version 1.40.
Workaround
None.
Description
A security issue has been found in the dnsproxy component of connman in
releases 1.32 to 1.39. Unpacking of NAME and RDATA/RDLENGTH fields with
TYPE A/AAAA in the uncompress function uses a memcpy with insufficient
bounds checking, which can overflow a stack buffer.
Impact
A remote attacker might be able to execute arbitrary code on the
victim’s host.
References
https://www.openwall.com/lists/oss-security/2021/06/09/1
https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=eceb2e8d2341c041df55a5e2f047d9a8c491463c
https://security.archlinux.org/CVE-2021-33833
Related
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.004 Low
EPSS
Percentile
73.9%