Vulnerability Details : CVE-2020-12141
An out-of-bounds read in the SNMP stack in Contiki-NG 4.4 and earlier allows an attacker to cause a denial of service and potentially disclose information via crafted SNMP packets to snmp_ber_decode_string_len_buffer in os/net/app-layer/snmp/snmp-ber.c.
Vulnerability category: Denial of service
Products affected by CVE-2020-12141
- cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-12141
0.47%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 63 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-12141
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.4
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:P |
10.0
|
4.9
|
NIST | |
|
9.1
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
3.9
|
5.2
|
NIST |
CWE ids for CVE-2020-12141
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-12141
-
https://github.com/contiki-ng/contiki-ng/pull/1355
Bugfix/snmp engine by mjurczak · Pull Request #1355 · contiki-ng/contiki-ng · GitHubPatch;Third Party Advisory
-
https://github.com/contiki-ng/contiki-ng/commit/12c824386ab60de757de5001974d73b32e19ad71#diff-32367fad664c6118fd5dda77cdf38eedc006cdd7544eca5bbeebe0b99653f8a0
Refactored SNMP engine after vulnerabilities · contiki-ng/contiki-ng@12c8243 · GitHubPatch;Third Party Advisory
-
https://twitter.com/ScepticCtf
Sceptic (@ScepticCtf) / TwitterThird Party Advisory
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