CVE-2017-12865
Stack-based buffer overflow in "dnsproxy.c" in connman 1.34 and earlier allows remote attackers...
Stack-based buffer overflow in "dnsproxy.c" in connman 1.34 and earlier allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted response query string passed to the "name" variable.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Stack-based buffer overflow in "dnsproxy.c" in connman 1.34 and earlier allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted response query string passed to the "name" variable.
- Record
CVE-2017-12865- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
Stack-based buffer overflow in "dnsproxy.c" in connman 1.34 and earlier allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted response query string passed to the "name" variable.
- Record
CVE-2017-12865- Updated
- 2026-11-02
EUVDEUVD-2017-4397 No score
Stack-based buffer overflow in "dnsproxy.c" in connman 1.34 and earlier allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted response query string passed to the "name" variable.
- Record
EUVD-2017-4397- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-2f42-jv77-x675
Stack-based buffer overflow in "dnsproxy.c" in connman 1.34 and earlier allows remote attackers...
Stack-based buffer overflow in "dnsproxy.c" in connman 1.34 and earlier allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted response query string passed to the "name" variable.
- Record
GHSA-2f42-jv77-x675- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-119
- Updated
- 2026-11-02
OSV
Stack-based buffer overflow in "dnsproxy.c" in connman 1.34 and earlier allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted response query string passed to the "name" variable.
- Record
CVE-2017-12865- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2017-12865
Stack-based buffer overflow in "dnsproxy.c" in connman 1.34 and earlier allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted response query string passed to the "name" variable.
- Record
DEBIAN-CVE-2017-12865- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2017-12865
Stack-based buffer overflow in "dnsproxy.c" in connman 1.34 and earlier allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted response query string passed to the "name" variable.
- Record
UBUNTU-CVE-2017-12865- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVMGASA-2018-0036 No score
Updated connman packages fix security vulnerability
Security consultants in NRI Secure Technologies discovered a stack overflow vulnerability in ConnMan. An attacker with control of the DNS responses to the DNS proxy in ConnMan might crash the service and, in same cases, remotely execute arbitrary commands in the host running the service (CVE-2017-12865)
- Record
MGASA-2018-0036- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10692-1 No score
connman-1.40-2.2 on GA media
These are all security issues fixed in the connman-1.40-2.2 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10692-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
connmanDebian:12 |
before 1.35-1 | 1.35-1 |
connmanDebian:13 |
before 1.35-1 | 1.35-1 |
connmanDebian:14 |
before 1.35-1 | 1.35-1 |
connmanDebian:7 |
before 1.0-1.1+wheezy2, plus listed versions 1.0-1.1+wheezy1 |
1.0-1.1+wheezy2 |
connmanDebian:8 |
before 1.21-1.2+deb8u1, plus listed versions 1.21-1.2 |
1.21-1.2+deb8u1 |
connmanDebian:9 |
before 1.33-3+deb9u1, plus listed versions 1.33-3 |
1.33-3+deb9u1 |
connmanMageia:5 |
before 1.24-4.1.mga5 | 1.24-4.1.mga5 |
connmanMageia:6 |
before 1.33-6.1.mga6 | 1.33-6.1.mga6 |
connmanUbuntu:16.04:LTS |
before 1.21-1.2+deb8u1build0.16.04.1, plus listed versions 1.21-1.21.21-1.2build11.21-1.2build2 |
1.21-1.2+deb8u1build0.16.04.1 |
connmanopenSUSE:Tumbleweed |
before 1.40-2.2 | 1.40-2.2 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | ManaswiJaiswal/Reproducing-ConnMan-1.34 | 2025-09-10 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2017-12865 is a critical vulnerability (CVSS 9.8) in Intel Connman, published August 27, 2017. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 5.52%, the 92nd percentile. Fixed in connman 1.35-1.
References
01.org/security/intel-oss-10001/intel-oss-10001
bugzilla.redhat.com/show_bug.cgi?id=1483720
security.gentoo.org/glsa/201812-02
nri-secure.com/blog/new-iot-vulnerability-connmando
securityfocus.com/bid/100498
git.kernel.org/pub/scm/network/connman/connman.git/commit?id=5c281d182ecdd0a424b64f7698f32467f8f67b71
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debian.org/security/2017/dsa-3956
nvd.nist.gov/vuln/detail/CVE-2017-12865
github.com/advisories/GHSA-2f42-jv77-x675
security-tracker.debian.org/tracker/CVE-2017-12865
advisories.mageia.org/MGASA-2018-0036.html
bugs.mageia.org/show_bug.cgi?id=21629
ubuntu.com/security/CVE-2017-12865
cve.org/CVERecord?id=CVE-2017-12865
suse.com/security/cve/CVE-2017-12865