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CVE-2021-26676

Status Candidate

Overview

gdhcp in ConnMan before 1.39 could be used by network-adjacent attackers to leak sensitive stack information, allowing further exploitation of bugs in gdhcp.

Related Files

Ubuntu Security Notice USN-6236-1
Posted Jul 19, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6236-1 - 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. 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.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2021-26675, CVE-2021-26676, CVE-2022-23097, CVE-2022-23098, CVE-2022-32292, CVE-2022-32293, CVE-2023-28488
SHA-256 | f3894c0008a42ac92888785f910724c4ae5b50e31e7b89bdf6b252564b1bdb6f
Gentoo Linux Security Advisory 202107-29
Posted Jul 13, 2021
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202107-29 - A buffer overflow in ConnMan might allow remote attacker(s) to execute arbitrary code. Versions less than 1.40 are affected.

tags | advisory, remote, overflow, arbitrary
systems | linux, gentoo
advisories | CVE-2021-26675, CVE-2021-26676, CVE-2021-33833
SHA-256 | 8fcff86608431d98ad7fc9a103d42f3e7a49758999950a65a0023225172d3b4f
Debian Security Advisory 4847-1
Posted Feb 28, 2021
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4847-1 - A remote information leak vulnerability and a remote buffer overflow vulnerability were discovered in ConnMan, a network manager for embedded devices, which could result in denial of service or the execution of arbitrary code.

tags | advisory, remote, denial of service, overflow, arbitrary
systems | linux, debian
advisories | CVE-2021-26675, CVE-2021-26676
SHA-256 | e6c4b376d3fc8f7e2f9e8a51b0edb8192c78ab02ff4cd8ee359c53f6c671d352
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