Debian Security Bug TrackerDEBIANCVE:CVE-2024-43167CVE-2024-43167
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
AI Score
Confidence
High
EPSS
Percentile
16.3%
A NULL pointer dereference flaw was found in the ub_ctx_set_fwd function in Unbound. This issue could allow an attacker who can invoke specific sequences of API calls to cause a segmentation fault. When certain API functions such as ub_ctx_set_fwd and ub_ctx_resolvconf are called in a particular order, the program attempts to read from a NULL pointer, leading to a crash. This issue can result in a denial of service by causing the application to terminate unexpectedly.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | unbound | <= 1.17.1-2+deb12u2 | unbound_1.17.1-2+deb12u2_all.deb |
| Debian | 11 | all | unbound | <= 1.13.1-1+deb11u2 | unbound_1.13.1-1+deb11u2_all.deb |
| Debian | 999 | all | unbound | <= 1.20.0-1 | unbound_1.20.0-1_all.deb |
| Debian | 13 | all | unbound | <= 1.20.0-1 | unbound_1.20.0-1_all.deb |
Related
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
AI Score
Confidence
High
EPSS
Percentile
16.3%