VDB
CVE-2021-20265
CVE-2021-20265
PUBLISHED
CVSS 5.5 MEDIUM
A flaw was found in the way memory resources were freed in the unix_stream_recvmsg function in the Linux kernel when a signal was pending. This flaw allows an unprivileged local user to crash the system by exhausting available memory. The highest threat from this vulnerability is to system availability.
EPSS 0.34% · 27.1th percentile
Risk Scores
CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.34%
27.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | linux-gcp-5.3 | 5.3.0-1010.11~18.04.1, 5.3.0-1012.13~18.04.1, 5.3.0-1014.15~18.04.1 |
| Ubuntu:18.04:LTS | linux-gcp | 4.15.0-1006.6, 4.15.0-1008.8, 4.15.0-1009.9 |
| Ubuntu:Pro:14.04:LTS | linux-azure | 4.15.0-1130.143~14.04.1, 4.15.0-1196.211~14.04.1, 4.15.0-1195.210~14.04.1 |
| Ubuntu:18.04:LTS | linux-oracle-5.3 | 0, *, 5.3.0-1028.30~18.04.1 |
| Ubuntu:18.04:LTS | linux-aws-5.0 | *, 5.0.0-1021.24~18.04.1, 5.0.0-1022.25~18.04.1 |
| Ubuntu:16.04:LTS | linux-raspi2 | 4.2.0-1014.21, 0, 4.4.0-1010.12 |
| Ubuntu:Pro:14.04:LTS | linux | 3.13.0-142.191, 3.13.0-191.242, 3.13.0-197.248 |
| Ubuntu:Pro:14.04:LTS | linux-aws | 4.4.0-1085.89, 0, 4.4.0-1002.2 |
| Ubuntu:18.04:LTS | linux-hwe-edge | 5.0.0-19.20~18.04.1, 5.0.0-16.17~18.04.1, 5.0.0-15.16~18.04.1 |
| Ubuntu:18.04:LTS | linux-hwe | 5.3.0-66.60, 5.3.0-65.59, 5.3.0-64.58~18.04.1 |
| Ubuntu:18.04:LTS | linux-oem | 4.15.0-1009.12, 4.15.0-1006.9, 4.15.0-1004.5 |
| Ubuntu:18.04:LTS | linux-gcp-edge | 5.0.0-1013.13~18.04.1, *, 0 |
| Ubuntu:18.04:LTS | linux-gke-4.15 | 4.15.0-1073.78, 4.15.0-1037.39, 4.15.0-1030.32 |
| 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-azure-edge | 4.18.0-1008.8~18.04.1, 5.0.0-1012.12~18.04.2, * |
| Ubuntu:18.04:LTS | linux-azure | 5.0.0-1031.33, 0, 4.15.0-1002.2 |
| Ubuntu:18.04:LTS | linux-aws-5.3 | 5.3.0-1035.37, 5.3.0-1016.17~18.04.1, 5.3.0-1017.18~18.04.1 |
| Ubuntu:20.04:LTS | linux-raspi2 | 5.4.0-1006.6, 5.4.0-1004.4, 5.3.0-1014.16 |
| Ubuntu:16.04:LTS | linux-hwe-edge | 4.13.0-16.19~16.04.3, 4.13.0-17.20~16.04.1, 4.13.0-21.24~16.04.1 |
| Ubuntu:Pro:14.04:LTS | linux-lts-xenial | 4.4.0-271.305~14.04.1, 4.4.0-272.306~14.04.1, 4.4.0-273.307~14.04.1 |
…and 2 more
Timeline
- Mar 10, 2021 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 26, 2021 EPSS Score
- Oct 28, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 4, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 6, 2022 EPSS Score
- Jul 8, 2022 EPSS Score
- Sep 11, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-20265 advisory
- https://git.kernel.org/linus/fa0dc04df259ba2df3ce1920e9690c7842f8fa4b third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-20265 third-party-advisory
- Multiples vulnérabilités dans les produits Juniper advisory