VDB
CVE-2020-11494
CVE-2020-11494
PUBLISHED
CVSS 4.400000095367432 MEDIUM
An issue was discovered in slc_bump in drivers/net/can/slcan.c in the Linux kernel 3.16 through 5.6.2. It allows attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL, aka CID-b9258a2cece4.
EPSS 0.72% · 53.8th percentile
Risk Scores
CVSS 3.1
4.400000095367432
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
EPSS Score
0.72%
53.8th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | linux-raspi2 | 4.15.0-1037.39, 4.15.0-1043.46, 4.15.0-1061.65 |
| Ubuntu:Pro:14.04:LTS | linux | 3.13.0-8.28, 3.13.0-133.182, 3.13.0-132.181 |
| Ubuntu:Pro:FIPS:18.04:LTS | linux-aws-fips | 4.15.0-2000.4, 0 |
| Ubuntu:Pro:14.04:LTS | linux-azure | 4.15.0-1047.51~14.04.1, 4.15.0-1045.49~14.04.1, 4.15.0-1077.82~14.04.1 |
| Ubuntu:18.04:LTS | linux-azure-edge | 0, 5.0.0-1012.12~18.04.2, 4.18.0-1008.8~18.04.1 |
| Ubuntu:18.04:LTS | linux-azure-4.15 | 0, 4.15.0-1082.92 |
| Ubuntu:16.04:LTS | linux-raspi2 | 4.4.0-1132.141, 4.4.0-1099.107, 4.4.0-1110.118 |
| Ubuntu:Pro:14.04:LTS | linux-lts-xenial | *, 4.4.0-70.91~14.04.1, 4.4.0-71.92~14.04.1 |
| Ubuntu:18.04:LTS | linux-kvm | 4.15.0-1053.53, 4.15.0-1050.50, 4.15.0-1025.25 |
| Ubuntu:18.04:LTS | linux-hwe | *, 4.18.0-13.14~18.04.1, 4.18.0-16.17~18.04.1 |
| Ubuntu:20.04:LTS | linux-raspi2 | 5.3.0-1014.16, 5.3.0-1007.8, 5.4.0-1006.6 |
| Ubuntu:18.04:LTS | linux-gke-5.0 | 5.0.0-1026.27~18.04.2, 5.0.0-1025.26~18.04.1, 5.0.0-1023.23~18.04.2 |
| Ubuntu:Pro:14.04:LTS | linux-aws | 4.4.0-1044.47, 4.4.0-1048.52, 4.4.0-1050.54 |
| Ubuntu:18.04:LTS | linux-gke-4.15 | 4.15.0-1033.35, 4.15.0-1046.49, 4.15.0-1048.51 |
| Ubuntu:18.04:LTS | linux-raspi2-5.3 | 0, 5.3.0-1023.25~18.04.1, * |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | linux-aws-fips | 0, 4.15.0-2000.4 |
| Ubuntu:18.04:LTS | linux-azure | 5.0.0-1027.29~18.04.1, 4.18.0-1020.20~18.04.1, 4.18.0-1023.24~18.04.1 |
| Ubuntu:18.04:LTS | linux-aws | 4.15.0-1035.37, 4.15.0-1037.39, 4.15.0-1039.41 |
| Ubuntu:20.04:LTS | linux-azure-fde | 5.4.0-1074.77+cvm1.1, 5.4.0-1080.83+cvm1.1, 5.4.0-1083.87+cvm1.1 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | 0, 6.8.0-2019.20 |
…and 36 more
Timeline
- Apr 2, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 24, 2021 EPSS Score
- Aug 26, 2021 EPSS Score
- Dec 31, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 5, 2022 EPSS Score
- May 7, 2022 EPSS Score
- Jul 10, 2022 EPSS Score
- Sep 12, 2022 EPSS Score
- Nov 15, 2022 EPSS Score
References
- https://lore.kernel.org/netdev/20200401100639.20199-1-rpalethorpe@suse.com/ third-party-advisory
- https://github.com/richiejp/ltp/blob/pty-slcan/testcases/kernel/pty/pty04.c third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-11494 third-party-advisory
- https://ubuntu.com/security/CVE-2020-11494 advisory
- https://github.com/torvalds/linux/commit/b9258a2cece4ec1f020715fe3554bc2e360f6264 fix
- https://ubuntu.com/security/notices/USN-4363-1 advisory
- https://ubuntu.com/security/notices/USN-4364-1 advisory
- https://ubuntu.com/security/notices/USN-4369-1 advisory
- https://ubuntu.com/security/notices/USN-4368-1 advisory
- https://usn.ubuntu.com/lsn/0067-1/ advisory