PT-2021-2220 · Connman+5 · Connman+5

Benedikt Schmotzle + 1 · Published 2021-02-08 · Updated 2024-06-15 · CVE-2021-26676

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions ConnMan versions prior to 1.39

Description The issue is related to a memory release error in the gdhcp component of ConnMan, which could be exploited by network-adjacent attackers to leak sensitive stack information. This leak could potentially allow for further exploitation of bugs in gdhcp.

Recommendations For versions prior to 1.39, update to version 1.39 or later to resolve the issue. As a temporary workaround, consider restricting network access to minimize the risk of exploitation by network-adjacent attackers.

Exploit

Fix

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

ALT-PU-2021-1242

ALT-PU-2022-2468

BDU:2021-01129

CVE-2021-26676

DLA-2552-1

DSA-4847-1

MGASA-2021-0195

OPENSUSE-SU-2021:0416-1

OPENSUSE-SU-2021:0452-1

OPENSUSE-SU-2021_0416-1

OPENSUSE-SU-2024:10692-1

USN-6236-1

Affected Products

Alt Linux

Astra Linux

Connman

Linuxmint

Suse

Ubuntu

References · 58

• 🔥 https://github.com/moehw/poc_exploits/tree/master/CVE-2023-28488 · Exploit
• https://ubuntu.com/security/CVE-2021-26675 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-4847-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2022-0114SE47 · Vendor Advisory
• https://debian.org/security/2021/dsa-4847 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-26676 · Vendor Advisory
• https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=a74524b3e3fad81b0fd1084ffdf9f2ea469cd9b1 · Patch
• https://osv.dev/vulnerability/openSUSE-SU-2021:0452-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20210611SE16 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2021:0416-1 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2021-0195.html · Security Note
• https://ubuntu.com/security/CVE-2022-23097 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-26676 · Security Note
• https://osv.dev/vulnerability/CVE-2021-26676 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se81-bulletin-20211019SE81 · Vendor Advisory