Quantum Secular Labs / Blog / Advisories
CVE-2018-11940: Lack of check in length before using memcpy in WLAN function can lead to OOB access in Snapdragon Auto…
CVE-2018-11940 is rated critical with a CVSS v3.0 base score of 9.8 and NVD lists 24 affected products, including Qualcomm Mdm9150 Firmware. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available.
Vulnerability description
Lack of check in length before using memcpy in WLAN function can lead to OOB access in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile in MDM9150, MDM9206, MDM9607, MDM9640, MDM9650, MSM8996AU, QCS605, SD 625, SD 636, SD 712 / SD 710 / SD 670, SD 820, SD 820A, SD 835, SD 845 / SD 850, SD 855, SDA660, SDM630, SDM660, SDX20, SDX24, SXR1130
Severity breakdown
CVSS v3.0 9.8: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
- Attack complexity: Low. No special conditions; the attack can be repeated reliably.
- Privileges required: None. No account or prior access is needed.
- User interaction: None. No action from any user is needed.
- Scope: Unchanged. Impact stays within the vulnerable component.
- Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
- Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
- Availability impact: High. Total loss of availability; the component can be shut down.
Underlying weakness
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.
Affected products
- Qualcomm Mdm9150 Firmware: all versions listed by NVD
- Qualcomm Mdm9206 Firmware: all versions listed by NVD
- Qualcomm Mdm9607 Firmware: all versions listed by NVD
- Qualcomm Mdm9640 Firmware: all versions listed by NVD
- Qualcomm Mdm9650 Firmware: all versions listed by NVD
- Qualcomm Msm8996au Firmware: all versions listed by NVD
- Qualcomm Qcs605 Firmware: all versions listed by NVD
- Qualcomm SD 625 Firmware: all versions listed by NVD
- Qualcomm SD 636 Firmware: all versions listed by NVD
- Qualcomm SD 712 Firmware: all versions listed by NVD
- Qualcomm SD 710 Firmware: all versions listed by NVD
- Qualcomm SD 670 Firmware: all versions listed by NVD
- Qualcomm SD 820 Firmware: all versions listed by NVD
- Qualcomm SD 820a Firmware: all versions listed by NVD
- Qualcomm SD 835 Firmware: all versions listed by NVD