CVE-2017-15855
An unchecked userspace value (ioctl_ptr->len) is used to copy contents to a kernel buffer which can lead to kernel buffer overflow.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.19%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In Qualcomm Android for MSM, Firefox OS for MSM, and QRD Android with all Android releases from CAF using the Linux kernel before security patch level 2018-04-05, the camera application triggers "user-memory-access" issue as the Camera CPP module Linux driver directly accesses the application provided buffer, which resides in user space. An unchecked userspace value (ioctl_ptr->len) is used to copy contents to a kernel buffer which can lead to kernel buffer overflow.
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.19% probability · 9th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119, CWE-129
- Affected
- google/android
- Source
- product-security@qualcomm.com
References
- https://source.android.com/security/bulletin/pixel/2018-04-01Third Party Advisory
- https://www.codeaurora.org/security-bulletin/2018/03/29/march-2018-code-aurora-security-bulletinPatch, Third Party Advisory
- https://source.android.com/security/bulletin/pixel/2018-04-01Third Party Advisory
- https://www.codeaurora.org/security-bulletin/2018/03/29/march-2018-code-aurora-security-bulletinPatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.