ID

VAR-202102-1243

CVE

CVE-2021-26675

TITLE

ConnMan  Out-of-bounds Vulnerability in Microsoft

DESCRIPTION

A stack-based buffer overflow in dnsproxy in ConnMan before 1.39 could be used by network adjacent attackers to execute code. ConnMan Is vulnerable to an out-of-bounds write.Information is obtained, information is tampered with, and service is disrupted (DoS) It may be put into a state. Pillow is a Python-based image processing library. There is currently no information about this vulnerability, please feel free to follow CNNVD or manufacturer announcements. For the stable distribution (buster), these problems have been fixed in version 1.36-2.1~deb10u1. We recommend that you upgrade your connman packages. For the detailed security status of connman please refer to its security tracker page at: https://security-tracker.debian.org/tracker/connman Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE----- iQKTBAEBCgB9FiEERkRAmAjBceBVMd3uBUy48xNDz0QFAmAhl9pfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDQ2 NDQ0MDk4MDhDMTcxRTA1NTMxRERFRTA1NENCOEYzMTM0M0NGNDQACgkQBUy48xND z0ToGg//e9ZijJG7S7wkyc4I+q+1Bn1kPikXh4osJ9wgNSUKdcsIGWpjAvnW+X1H WwT5OI+7BeuAK1uAvGIuDK5s6cPsaa8NUKLsAwgKKcwCJcN74wLKls+3j7vt4nQA ynenKrwYBxxdfq9oUFPIvMhWggZ5a1LFqbgLeXnQc36IGAJSpkCMogJpOIQqc3Ed Xi7I7TKk3l2rxsvNxD+qPaRp+0p81trEcX7M81yhEBpg1q2UeEKLrDWkHxT1+l4N +ZHGT71zS5vq7pUrwWURlcy4mwOvNG0VA7BSu/j2mCAH2iUiRMEYOnZWEZTT9rS0 woDFAtU0Yp/zE6FhnXK0iwPyTfv9lJaOLpf30QnT3rc14t1sGhs460Hzv6XUbgjA Z89M5J+ImESPr3S1P7Tw39giD8LRsuXCqX8Hh3blz8astlrp9G+vmH/oN7U/yo9j uaGuwytV5aJuDDyl6tiMPz4nl537fxawdn95Mm9R67F1glESkEUob8ua2PRJDDCl 5ZPkTRwrIMyf2yS9ggvml2AsJbKUEs7pHxuzSpf9f/0ac5vBSwlXgLiEsq91uDxj TkEoXa/UKXyjDqnp4I/ctiwAopcp51Dvmsi2eiLKKxlS8XHWUZxVTSToqcGbj3OU isUqzGXEpvRgvC7u7oFS7FvSX+rBR0+H4iXq8MwCZvgfLldCyLQ= =5+D+ -----END PGP SIGNATURE----- . - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202107-29 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: ConnMan: Multiple vulnerabilities Date: July 12, 2021 Bugs: #769491, #795084 ID: 202107-29 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A buffer overflow in ConnMan might allow remote attacker(s) to execute arbitrary code. Background ========== ConnMan provides a daemon for managing Internet connections. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/connman < 1.40 >= 1.40 Description =========== Multiple vulnerabilities have been discovered in connman. Please review the CVE identifiers referenced below for details. Impact ====== Please review the referenced CVE identifiers for details. Workaround ========== There is no known workaround at this time. Resolution ========== All ConnMan users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/connman-1.40" References ========== [ 1 ] CVE-2021-26675 https://nvd.nist.gov/vuln/detail/CVE-2021-26675 [ 2 ] CVE-2021-26676 https://nvd.nist.gov/vuln/detail/CVE-2021-26676 [ 3 ] CVE-2021-33833 https://nvd.nist.gov/vuln/detail/CVE-2021-33833 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202107-29 Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org. License ======= Copyright 2021 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. https://creativecommons.org/licenses/by-sa/2.5 . ========================================================================== Ubuntu Security Notice USN-6236-1 July 19, 2023 connman vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 23.04 - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS (Available with Ubuntu Pro) - Ubuntu 16.04 LTS (Available with Ubuntu Pro) Summary: Several security issues were fixed in ConnMan. Software Description: - connman: Intel Connection Manager daemon Details: It was discovered that ConnMan could be made to write out of bounds. A remote attacker could possibly use this issue to cause ConnMan to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2021-26675, CVE-2021-33833) It was discovered that ConnMan could be made to leak sensitive information via the gdhcp component. A remote attacker could possibly use this issue to obtain information for further exploitation. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. (CVE-2021-26676) It was discovered that ConnMan could be made to read out of bounds. A remote attacker could possibly use this issue to case ConnMan to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2022-23096, CVE-2022-23097) It was discovered that ConnMan could be made to run into an infinite loop. A remote attacker could possibly use this issue to cause ConnMan to consume resources and to stop operating, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2022-23098) It was discovered that ConnMan could be made to write out of bounds via the gweb component. A remote attacker could possibly use this issue to cause ConnMan to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2022-32292) It was discovered that ConnMan did not properly manage memory under certain circumstances. A remote attacker could possibly use this issue to cause ConnMan to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2022-32293) It was discovered that ConnMan could be made to write out of bounds via the gdhcp component. A remote attacker could possibly use this issue to cause ConnMan to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2023-28488) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 23.04: connman 1.41-2ubuntu0.23.04.1 Ubuntu 22.04 LTS: connman 1.36-2.3ubuntu0.1 Ubuntu 20.04 LTS: connman 1.36-2ubuntu0.1 Ubuntu 18.04 LTS (Available with Ubuntu Pro): connman 1.35-6ubuntu0.1~esm1 Ubuntu 16.04 LTS (Available with Ubuntu Pro): connman 1.21-1.2+deb8u1ubuntu0.1~esm1 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-6236-1 CVE-2021-26675, CVE-2021-26676, CVE-2021-33833, CVE-2022-23096, CVE-2022-23097, CVE-2022-23098, CVE-2022-32292, CVE-2022-32293, CVE-2023-28488 Package Information: https://launchpad.net/ubuntu/+source/connman/1.41-2ubuntu0.23.04.1 https://launchpad.net/ubuntu/+source/connman/1.36-2.3ubuntu0.1 https://launchpad.net/ubuntu/+source/connman/1.36-2ubuntu0.1

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote or local

TYPE

other

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Debian

SOURCES

LAST UPDATE DATE

2026-06-19T22:05:56.490000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE