VDB
CVE-2019-19241
CVE-2019-19241
PUBLISHED
CVSS 7.800000190734863 HIGH
In the Linux kernel before 5.4.2, the io_uring feature leads to requests that inadvertently have UID 0 and full capabilities, aka CID-181e448d8709. This is related to fs/io-wq.c, fs/io_uring.c, and net/socket.c. For example, an attacker can bypass intended restrictions on adding an IPv4 address to the loopback interface. This occurs because IORING_OP_SENDMSG operations, although requested in the context of an unprivileged user, are sometimes performed by a kernel worker thread without considering that context.
EPSS 1.09% · 64.8th percentile
Risk Scores
CVSS 3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
1.09%
64.8th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:22.04:LTS | linux-realtime | 5.15.0-1032.35, 0 |
| Ubuntu:20.04:LTS | linux-gkeop-5.15 | 5.15.0-1047.54~20.04.1, 5.15.0-1048.55~20.04.1, 5.15.0-1049.56~20.04.1 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | 6.8.0-2019.20, 0 |
| Ubuntu:20.04:LTS | linux-azure-fde | *, *, * |
| Ubuntu:18.04:LTS | linux-hwe | *, *, * |
| Ubuntu:18.04:LTS | linux-azure-5.3 | *, *, 0 |
| Ubuntu:18.04:LTS | linux-gke-5.3 | 0, 5.3.0-1011.12~18.04.1 |
| Ubuntu:18.04:LTS | linux-raspi2-5.3 | 0, 5.3.0-1017.19~18.04.1 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | 0, 5.15.0-1073.75 |
| Ubuntu:18.04:LTS | linux-gcp-5.3 | 0, 5.3.0-1009.10~18.04.1, 5.3.0-1008.9~18.04.1 |
| Ubuntu:18.04:LTS | linux-gcp-edge | 4.18.0-1015.16~18.04.1, 4.18.0-1004.5~18.04.1, 4.18.0-1005.6~18.04.1 |
| Ubuntu:22.04:LTS | linux-riscv | 5.15.0-1027.31, 5.15.0-1019.22, 5.15.0-1028.32 |
| Ubuntu:18.04:LTS | linux-azure-edge | 0, *, * |
| Ubuntu:18.04:LTS | linux-hwe-edge | 5.3.0-24.26~18.04.2, 5.3.0-23.25~18.04.2, 5.3.0-23.25~18.04.1 |
| Ubuntu:20.04:LTS | linux-gkeop | 5.4.0-1067.71, 5.4.0-1066.70, 5.4.0-1065.69 |
| Ubuntu:20.04:LTS | linux-raspi2 | 5.3.0-1007.8, 5.3.0-1015.17, 5.4.0-1004.4 |
| Ubuntu:20.04:LTS | linux-gke | 5.4.0-1098.105, 5.4.0-1062.65, 5.4.0-1063.66 |
| Ubuntu:16.04:LTS | linux-hwe-edge | 4.10.0-24.28~16.04.1, 4.10.0-26.30~16.04.1, 4.11.0-13.19~16.04.1 |
Timeline
- Dec 17, 2019 PoC Published
- Dec 17, 2019 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 26, 2021 EPSS Score
- Dec 30, 2021 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 3, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 6, 2022 EPSS Score
- Sep 10, 2022 EPSS Score
- Nov 12, 2022 EPSS Score
References
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1975 third-party-advisory
- https://git.kernel.org/linus/181e448d8709e517c9c7b523fcd209f24eb38ca7 third-party-advisory
- https://git.kernel.org/linus/d69e07793f891524c6bbf1e75b9ae69db4450953 third-party-advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.2 third-party-advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=181e448d8709e517c9c7b523fcd209f24eb38ca7 third-party-advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d69e07793f891524c6bbf1e75b9ae69db4450953 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2019-19241 third-party-advisory
- https://ubuntu.com/security/CVE-2019-19241 advisory
- https://ubuntu.com/security/notices/USN-4284-1 advisory