VDB
CVE-2020-8428
CVE-2020-8428
PUBLISHED
fs/namei.c in the Linux kernel before 5.5 has a may_create_in_sticky use-after-free, which allows local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9. One attack vector may be an open system call for a UNIX domain socket, if the socket is being moved to a new parent directory and its old parent directory is being removed.
EPSS 0.09% · 26.2th percentile
Risk Scores
EPSS Score
0.09%
26.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:Pro:14.04:LTS | linux-azure | 4.15.0-1067.72~14.04.1, 4.15.0-1074.79~14.04.1, * |
| Ubuntu:18.04:LTS | linux-aws-5.0 | 5.0.0-1025.28, 5.0.0-1027.30, 5.0.0-1024.27~18.04.1 |
| Ubuntu:18.04:LTS | linux-gke-4.15 | 4.15.0-1040.42, 4.15.0-1055.58, 4.15.0-1042.44 |
| Ubuntu:18.04:LTS | linux-azure | 4.15.0-1036.38, 4.15.0-1013.13, 4.15.0-1008.8 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | 6.8.0-2019.20, 0 |
| Ubuntu:16.04:LTS | linux-raspi2 | 0, 4.4.0-1104.112, 4.4.0-1090.98 |
| Ubuntu:Pro:14.04:LTS | linux-lts-xenial | 4.4.0-130.156~14.04.1, 4.4.0-128.154~14.04.1, 4.4.0-127.153~14.04.1 |
| Ubuntu:22.04:LTS | linux-riscv | 5.13.0-1004.4, 5.15.0-1011.12, 5.15.0-1004.4 |
| Ubuntu:16.04:LTS | linux-oracle | 4.15.0-1022.25~16.04.1, 4.15.0-1023.26~16.04.1, 4.15.0-1025.28~16.04.1 |
| Ubuntu:18.04:LTS | linux-gcp-5.3 | *, 5.3.0-1014.15~18.04.1, 5.3.0-1016.17~18.04.1 |
| Ubuntu:18.04:LTS | linux-snapdragon | 4.15.0-1058.64, 4.15.0-1060.66, 4.15.0-1062.69 |
| Ubuntu:18.04:LTS | linux | 4.15.0-91.92, 4.15.0-65.74, 4.15.0-74.84 |
| Ubuntu:18.04:LTS | linux-gke-5.0 | 5.0.0-1025.26~18.04.1, 5.0.0-1026.27~18.04.2, 5.0.0-1030.31 |
| Ubuntu:20.04:LTS | linux-raspi2 | 5.3.0-1007.8, 5.3.0-1014.16, 5.3.0-1015.17 |
| Ubuntu:18.04:LTS | linux-raspi2-5.3 | 5.3.0-1017.19~18.04.1, 5.3.0-1018.20~18.04.1, 5.3.0-1019.21~18.04.1 |
| Ubuntu:16.04:LTS | linux-aws | 4.4.0-1063.72, 4.4.0-1065.75, 4.4.0-1067.77 |
| Ubuntu:16.04:LTS | linux-snapdragon | 0, 4.4.0-1098.103, 4.4.0-1127.135 |
| Ubuntu:16.04:LTS | linux-azure | 4.15.0-1042.46, 4.15.0-1046.50, 4.15.0-1047.51 |
| Ubuntu:18.04:LTS | linux-oracle-5.0 | 5.0.0-1011.16, 5.0.0-1013.18, 5.0.0-1009.14~18.04.1 |
| Ubuntu:20.04:LTS | linux-azure-fde | 5.4.0-1072.75+cvm1.1, 0, 5.4.0-1063.66+cvm2.2 |
…and 25 more
Timeline
- Jan 28, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- May 26, 2021 EPSS Score
- May 31, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-8428 third-party-advisory
- https://www.openwall.com/lists/oss-security/2020/01/28/2 third-party-advisory
- https://www.openwall.com/lists/oss-security/2020/02/02/1 third-party-advisory
- https://syzkaller.appspot.com/bug?extid=190005201ced78a74ad6 third-party-advisory
- https://ubuntu.com/security/notices/USN-4318-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-4319-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-4320-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-4325-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-4324-1 vendor-advisory
- https://usn.ubuntu.com/lsn/0065-1/ third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-8428 third-party-advisory