Summary
USN-3378-1 fixed vulnerabilities in the Linux kernel. Unfortunately, a
regression was introduced that prevented conntrack from working
correctly in some situations. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Fan Wu and Shixiong Zhao discovered a race condition between inotify events
and vfs rename operations in the Linux kernel. An unprivileged local
attacker could use this to cause a denial of service (system crash) or
execute arbitrary code. (CVE-2017-7533)
It was discovered that the Linux kernel did not properly restrict
RLIMIT_STACK size. A local attacker could use this in conjunction with
another vulnerability to possibly execute arbitrary code.
(CVE-2017-1000365)
李强 discovered that the Virtio GPU driver in the Linux kernel did not
properly free memory in some situations. A local attacker could use this to
cause a denial of service (memory consumption). (CVE-2017-10810)
石磊 discovered that the RxRPC Kerberos 5 ticket handling code in the
Linux kernel did not properly verify metadata. A remote attacker could use
this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2017-7482)
Fixed packages 5
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 16.04 LTS 16.04:LTS | linux | 4.4.0-92.115 |
| Ubuntu · 16.04 LTS 16.04:LTS | linux-aws | 4.4.0-1031.40 |
| Ubuntu · 16.04 LTS 16.04:LTS | linux-gke | 4.4.0-1027.27 |
| Ubuntu · 16.04 LTS 16.04:LTS | linux-raspi2 | 4.4.0-1070.78 |
| Ubuntu · 16.04 LTS 16.04:LTS | linux-snapdragon | 4.4.0-1072.77 |
References
-
report
https://bugs.launchpad.net/bugs/1709032