Risk | High |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2021-26675 CVE-2021-26676 |
CWE-ID | CWE-121 CWE-401 |
Exploitation vector | Local network |
Public exploit | N/A |
Vulnerable software Subscribe |
connman (Debian package) Operating systems & Components / Operating system package or component |
Vendor | Debian |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU50670
Risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-26675
CWE-ID:
CWE-121 - Stack-based buffer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within dnsproxy in ConnMan. A remote unauthenticated attacker on the local network can send specially crafted packets to the affected system, trigger a stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationUpdate connman package to version 1.36-2.1~deb10u1.
Vulnerable software versionsconnman (Debian package): 0.10+git20090203t223225-0ubuntu1 - 1.37+repack-1+b1
External linkshttp://www.debian.org/security/2021/dsa-4847
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.
EUVDB-ID: #VU50669
Risk: Medium
CVSSv3.1: 6.4 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-26676
CWE-ID:
CWE-401 - Missing release of memory after effective lifetime
Exploit availability: No
DescriptionThe 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.
MitigationUpdate connman package to version 1.36-2.1~deb10u1.
Vulnerable software versionsconnman (Debian package): 0.10+git20090203t223225-0ubuntu1 - 1.37+repack-1+b1
External linkshttp://www.debian.org/security/2021/dsa-4847
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.