VDB
CVE-2020-15852
CVE-2020-15852
PUBLISHED
An issue was discovered in the Linux kernel 5.5 through 5.7.9, as used in Xen through 4.13.x for x86 PV guests. An attacker may be granted the I/O port permissions of an unrelated task. This occurs because tss_invalidate_io_bitmap mishandling causes a loss of synchronization between the I/O bitmaps of TSS and Xen, aka CID-cadfad870154.
EPSS 0.16% · 36.6th percentile
Risk Scores
EPSS Score
0.16%
36.6th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | linux-azure-edge | 0, 4.18.0-1006.6~18.04.1, 4.18.0-1008.8~18.04.1 |
| Ubuntu:18.04:LTS | linux-azure | 4.18.0-1025.27~18.04.1, 4.18.0-1024.25~18.04.1, 4.18.0-1023.24~18.04.1 |
| Ubuntu:20.04:LTS | linux-oem-5.6 | 5.6.0-1011.11, 5.6.0-1010.10, 5.6.0-1008.8 |
| Ubuntu:Pro:14.04:LTS | linux-aws | 4.4.0-1094.99, 4.4.0-1095.100, 4.4.0-1097.102 |
| Ubuntu:18.04:LTS | linux-gcp | 4.15.0-1030.32, 0, 4.15.0-1001.1 |
| Ubuntu:18.04:LTS | linux-aws-5.0 | 5.0.0-1023.26~18.04.1, 5.0.0-1024.27~18.04.1, 5.0.0-1025.28 |
| Ubuntu:16.04:LTS | linux-hwe-edge | 4.11.0-14.20~16.04.1, 4.11.0-13.19~16.04.1, 4.10.0-26.30~16.04.1 |
| Ubuntu:18.04:LTS | linux-gcp-edge | 4.18.0-1004.5~18.04.1, 4.18.0-1006.7~18.04.1, 4.18.0-1007.8~18.04.1 |
| Ubuntu:Pro:14.04:LTS | linux | 3.13.0-133.182, 0, 3.11.0-12.19 |
| Ubuntu:18.04:LTS | linux-hwe-edge | *, 0, 5.0.0-15.16~18.04.1 |
| Ubuntu:18.04:LTS | linux-oracle-5.0 | 5.0.0-1007.12~18.04.1, 5.0.0-1008.13~18.04.1, 5.0.0-1009.14~18.04.1 |
| Ubuntu:18.04:LTS | linux-oracle-5.3 | 5.3.0-1011.12~18.04.1, 5.3.0-1014.15~18.04.1, 5.3.0-1016.18~18.04.1 |
| Ubuntu:20.04:LTS | linux-raspi2 | 5.3.0-1014.16, 5.3.0-1015.17, 5.3.0-1017.19 |
| Ubuntu:18.04:LTS | linux-gcp-5.3 | 5.3.0-1016.17~18.04.1, 5.3.0-1017.18~18.04.1, 5.3.0-1026.28~18.04.1 |
| Ubuntu:Pro:14.04:LTS | linux-lts-xenial | 4.4.0-14.30~14.04.2, *, * |
| Ubuntu:Pro:14.04:LTS | linux-azure | *, *, * |
Timeline
- Jul 20, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 22, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 25, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 27, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 2, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-15852 third-party-advisory
- https://www.openwall.com/lists/oss-security/2020/07/16/1 third-party-advisory
- http://www.openwall.com/lists/oss-security/2020/07/21/2 third-party-advisory
- http://xenbits.xen.org/xsa/advisory-329.html third-party-advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cadfad870154e14f745ec845708bc17d166065f2 third-party-advisory
- https://github.com/torvalds/linux/commit/cadfad870154e14f745ec845708bc17d166065f2 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-15852 third-party-advisory