VDB
CVE-2015-7550
CVE-2015-7550
PUBLISHED
The keyctl_read_key function in security/keys/keyctl.c in the Linux kernel before 4.3.4 does not properly use a semaphore, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted application that leverages a race condition between keyctl_revoke and keyctl_read calls.
EPSS 0.05% · 16.0th percentile
Risk Scores
EPSS Score
0.05%
16.0th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | linux-azure-fde | 0, *, * |
| Ubuntu:20.04:LTS | linux-gkeop | 5.4.0-1008.9, 5.4.0-1057.61, 5.4.0-1087.91 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | 0, 5.15.0-1073.75 |
| Ubuntu:18.04:LTS | linux-hwe-edge | *, 5.3.0-23.25~18.04.2, 5.3.0-19.20~18.04.2 |
| Ubuntu:20.04:LTS | linux-riscv | 5.4.0-40.45, 5.4.0-27.31, 0 |
| Ubuntu:18.04:LTS | linux-azure | 4.15.0-1031.32, *, * |
| Ubuntu:20.04:LTS | linux-gke | 5.4.0-1098.105, 5.4.0-1033.35, 5.4.0-1035.37 |
| Ubuntu:14.04:LTS | linux-lts-utopic | 3.16.0-55.74~14.04.1, 3.16.0-53.72~14.04.1, 3.16.0-52.71~14.04.1 |
| Ubuntu:14.04:LTS | linux-lts-wily | 4.2.0-18.22~14.04.1, 0, * |
| Ubuntu:14.04:LTS | linux-lts-vivid | 3.19.0-28.30~14.04.1, 3.19.0-30.33~14.04.1, 3.19.0-31.36~14.04.1 |
| Ubuntu:20.04:LTS | linux-raspi2 | 5.3.0-1007.8, 5.3.0-1014.16, 5.3.0-1015.17 |
| Ubuntu:22.04:LTS | linux-riscv | 5.15.0-1014.16, 5.15.0-1028.32, 5.15.0-1023.27 |
| Ubuntu:18.04:LTS | linux-gcp | 0, *, 4.15.0-1040.42 |
| Ubuntu:Pro:20.04:LTS | linux-azure-fde-5.15 | 5.15.0-1064.73~20.04.1.1, 0, 5.15.0-1019.24~20.04.1.1 |
| Ubuntu:24.04:LTS | linux-realtime | 0, 6.8.1-1015.16 |
| Ubuntu:24.04:LTS | linux-hwe-6.11 | 6.11.0-17.17~24.04.2, 6.11.0-19.19~24.04.1, 6.11.0-24.24~24.04.1 |
| Ubuntu:24.04:LTS | linux-riscv | 6.8.0-31.31.1, 6.8.0-20.20.1, 6.5.0-9.9.1 |
| Ubuntu:18.04:LTS | linux-hwe | 5.3.0-59.53~18.04.1, 5.3.0-53.47~18.04.1, 5.3.0-51.44~18.04.2 |
| Ubuntu:24.04:LTS | linux-azure-6.11 | 6.11.0-1015.15~24.04.1, 6.11.0-1014.14~24.04.1, 6.11.0-1013.13~24.04.1 |
| Ubuntu:14.04:LTS | linux | 3.13.0-19.39, 3.13.0-19.40, 3.13.0-20.42 |
…and 4 more
Timeline
- Dec 30, 2015 CVE Published
- Feb 4, 2022 EPSS Score
- Mar 29, 2022 EPSS Score
- May 20, 2022 EPSS Score
- Jul 12, 2022 EPSS Score
- Sep 3, 2022 EPSS Score
- Oct 26, 2022 EPSS Score
- Dec 18, 2022 EPSS Score
- Feb 8, 2023 EPSS Score
- Mar 7, 2023 EPSS Score
- Apr 2, 2023 EPSS Score
- May 25, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2015-7550 third-party-advisory
- https://git.kernel.org/linus/b4a1b4f5047e4f54e194681125c74c0aa64d637d third-party-advisory
- https://ubuntu.com/security/notices/USN-2888-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-2890-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-2890-2 vendor-advisory
- https://ubuntu.com/security/notices/USN-2890-3 vendor-advisory
- https://ubuntu.com/security/notices/USN-2911-2 vendor-advisory
- https://ubuntu.com/security/notices/USN-2910-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-2907-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-2907-2 vendor-advisory
- https://ubuntu.com/security/notices/USN-2911-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2015-7550 third-party-advisory