Vulnerability Details : CVE-2017-6899
The msm_bus_dbg_update_request_write function in drivers/platform/msm/msm_bus/msm_bus_dbg.c in android_kernel_huawei_msm8916 through 2017-06-16 in LineageOS, and possibly other kernels for MSM devices, allows attackers to cause a denial of service (NULL pointer dereference and device crash) via a crafted /sys/kernel/debug/msm-bus-dbg/client-data/update-request write request.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2017-6899
- cpe:2.3:o:lineageos:lineageos:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-6899
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 18 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-6899
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.9
|
MEDIUM | AV:L/AC:L/Au:N/C:N/I:N/A:C |
3.9
|
6.9
|
NIST | |
|
6.2
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
2.5
|
3.6
|
NIST |
CWE ids for CVE-2017-6899
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-6899
-
http://blog.secret-team.cn/index.php/archives/5/
Third Party Advisory
-
http://www.securityfocus.com/bid/99107
LineageOS 'msm_bus_dbg.c' Null Pointer Dereference Denial of Service VulnerabilityThird Party Advisory;VDB Entry
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