Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2018-7755: An issue was discovered in the fd_locked_ioctl function in drivers/block/floppy.c in the Linux kernel. The floppy driver will copy a kernel pointer to user memory in response to the FDGETPRM ioctl. An attacker can send the FDGETPRM ioctl and use the obtained kernel pointer to discover the location of kernel code and data and bypass kernel security protections such as KASLR. 1553216: CVE-2018-7755 kernel: Information exposure in fd_locked_ioctl function in drivers/block/floppy.c
Fixed packages 13
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | kernel | 0:4.14.77-80.57.amzn2 |
| Amazon Linux · 2 | kernel-debuginfo | 0:4.14.77-80.57.amzn2 |
| Amazon Linux · 2 | kernel-debuginfo-common-aarch64 | 0:4.14.77-80.57.amzn2 |
| Amazon Linux · 2 | kernel-debuginfo-common-x86_64 | 0:4.14.77-80.57.amzn2 |
| Amazon Linux · 2 | kernel-devel | 0:4.14.77-80.57.amzn2 |
| Amazon Linux · 2 | kernel-headers | 0:4.14.77-80.57.amzn2 |
| Amazon Linux · 2 | kernel-tools | 0:4.14.77-80.57.amzn2 |
| Amazon Linux · 2 | kernel-tools-debuginfo | 0:4.14.77-80.57.amzn2 |
| Amazon Linux · 2 | kernel-tools-devel | 0:4.14.77-80.57.amzn2 |
| Amazon Linux · 2 | perf | 0:4.14.77-80.57.amzn2 |
| Amazon Linux · 2 | perf-debuginfo | 0:4.14.77-80.57.amzn2 |
| Amazon Linux · 2 | python-perf | 0:4.14.77-80.57.amzn2 |
| Amazon Linux · 2 | python-perf-debuginfo | 0:4.14.77-80.57.amzn2 |
Vulnerabilities 1
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Unscored —
An issue was discovered in the fd_locked_ioctl function in drivers/block/floppy.c in the Linux kernel through 4.15.7. T…
References
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web
https://alas.aws.amazon.com/cve/html/CVE-2018-7755.html