#VU50669 Memory leak in ConnMan - CVE-2021-26676
Vulnerability identifier: #VU50669
Vulnerability risk: Medium
CVSSv4.0: 4.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2021-26676
CWE-ID:
CWE-401
Exploitation vector: Local network
Exploit availability: No
Vulnerable software:
ConnMan
Universal components / Libraries /
Libraries used by multiple products
Vendor: kernel.org
Description
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due memory leak in gdhcp in ConnMan. A remote attacker on the local network can force the application to leak sensitive stack information.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
ConnMan: 0.1 - 1.38
External links
https://bugzilla.suse.com/show_bug.cgi?id=1181751
https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=58d397ba74873384aee449690a9070bacd5676fa
https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=a74524b3e3fad81b0fd1084ffdf9f2ea469cd9b1
https://git.kernel.org/pub/scm/network/connman/connman.git/tree/ChangeLog
https://lists.debian.org/debian-lts-announce/2021/02/msg00013.html
https://www.debian.org/security/2021/dsa-4847
https://www.openwall.com/lists/oss-security/2021/02/08/2
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
