CVE-2010-3843
The gtkui_conf_read function in src/interfaces/gtk/ec_gtk_conf.c in Ettercap 0.7.3, when the GTK...
The GTK version of ettercap uses a global settings file at /tmp/.ettercap_gtk and does not verify ownership of this file. When parsing this file for settings in gtkui_conf_read() (src/interfacesgtk/ec_gtk_conf.c), an unchecked sscanf() call allows a maliciously placed settings file to overflow a statically-sized buffer on the stack.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
7.8
The GTK version of ettercap uses a global settings file at /tmp/.ettercap_gtk and does not verify ownership of this file. When parsing this file for settings in gtkui_conf_read() (src/interfacesgtk/ec_gtk_conf.c), an unchecked sscanf() call allows a maliciously placed settings file to overflow a statically-sized buffer on the stack.
- Record
CVE-2010-3843- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 4.6 Medium
AV:L/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
The GTK version of ettercap uses a global settings file at /tmp/.ettercap_gtk and does not verify ownership of this file. When parsing this file for settings in gtkui_conf_read() (src/interfacesgtk/ec_gtk_conf.c), an unchecked sscanf() call allows a maliciously placed settings file to overflow a statically-sized buffer on the stack.
- Record
CVE-2010-3843- Weakness
- CWE-787
- Updated
- 2026-11-02
EUVDEUVD-2010-3822 No score
The GTK version of ettercap uses a global settings file at /tmp/.ettercap_gtk and does not verify ownership of this file. When parsing this file for settings in gtkui_conf_read() (src/interfacesgtk/ec_gtk_conf.c), an unchecked sscanf() call allows a maliciously placed settings file to overflow a statically-sized buffer on the stack.
- Record
EUVD-2010-3822- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-2w85-hj5c-563j No score
The gtkui_conf_read function in src/interfaces/gtk/ec_gtk_conf.c in Ettercap 0.7.3, when the GTK...
The gtkui_conf_read function in src/interfaces/gtk/ec_gtk_conf.c in Ettercap 0.7.3, when the GTK interface is used, does not ensure that the contents of the .ettercap_gtk file are controlled by the root user, which allows local users to conduct stack-based buffer overflow attacks and possibly execute arbitrary code, cause a denial of service (memory consumption), or possibly have unspecified other impact via crafted lines in this file.
- Record
GHSA-2w85-hj5c-563j- Weakness
- CWE-120, CWE-787
- Updated
- 2026-11-02
OSV
7.8
The GTK version of ettercap uses a global settings file at /tmp/.ettercap_gtk and does not verify ownership of this file. When parsing this file for settings in gtkui_conf_read() (src/interfacesgtk/ec_gtk_conf.c), an unchecked sscanf() call allows a maliciously placed settings file to overflow a statically-sized buffer on the stack.
- Record
CVE-2010-3843- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2010-3843
7.8
The GTK version of ettercap uses a global settings file at /tmp/.ettercap_gtk and does not verify ownership of this file. When parsing this file for settings in gtkui_conf_read() (src/interfacesgtk/ec_gtk_conf.c), an unchecked sscanf() call allows a maliciously placed settings file to overflow a statically-sized buffer on the stack.
- Record
DEBIAN-CVE-2010-3843- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2010-3843
7.8
The GTK version of ettercap uses a global settings file at /tmp/.ettercap_gtk and does not verify ownership of this file. When parsing this file for settings in gtkui_conf_read() (src/interfacesgtk/ec_gtk_conf.c), an unchecked sscanf() call allows a maliciously placed settings file to overflow a statically-sized buffer on the stack.
- Record
UBUNTU-CVE-2010-3843- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2010-3843 is a high vulnerability (CVSS 7.8) in Ettercap-project Ettercap, published May 28, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.31%, the 24th percentile. Fixed in ettercap 1:0.7.4-1.
References
bugzilla.redhat.com/show_bug.cgi?id=643453
bugs.launchpad.net/ubuntu/+source/ettercap/+bug/656347
article.gmane.org/gmane.comp.security.oss.general/3660
nvd.nist.gov/vuln/detail/CVE-2010-3843
secunia.com/advisories/41820
openwall.com/lists/oss-security/2010/10/13/2