VDB
CVE-2015-8952
CVE-2015-8952
PUBLISHED
The mbcache feature in the ext2 and ext4 filesystem implementations in the Linux kernel before 4.6 mishandles xattr block caching, which allows local users to cause a denial of service (soft lockup) via filesystem operations in environments that use many attributes, as demonstrated by Ceph and Samba.
EPSS 0.08% · 23.2th percentile
Risk Scores
EPSS Score
0.08%
23.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | linux-raspi2 | 5.4.0-1006.6, 5.4.0-1004.4, 5.3.0-1017.19 |
| Ubuntu:24.04:LTS | linux-azure-6.11 | 0, 6.11.0-1008.8~24.04.1, * |
| Ubuntu:16.04:LTS | linux-aws | 4.4.0-1020.29, 4.4.0-1032.41, 4.4.0-1037.46 |
| Ubuntu:20.04:LTS | linux-azure-fde | 5.4.0-1074.77+cvm1.1, 5.4.0-1073.76+cvm1.1, 5.4.0-1072.75+cvm1.1 |
| Ubuntu:Pro:20.04:LTS | linux-azure-fde-5.15 | *, 5.15.0-1082.91~20.04.1.1, 5.15.0-1081.90~20.04.1.1 |
| Ubuntu:24.04:LTS | linux-lowlatency-hwe-6.11 | 0, *, 6.11.0-1015.16~24.04.2 |
| Ubuntu:18.04:LTS | linux-snapdragon | 0, 4.4.0-1081.86, 4.4.0-1079.84 |
| Ubuntu:14.04:LTS | linux-aws | 4.4.0-1010.10, 4.4.0-1009.9, 4.4.0-1012.12 |
| Ubuntu:24.04:LTS | linux-hwe-6.11 | 6.11.0-28.28~24.04.1, 6.11.0-29.29~24.04.1, 6.11.0-26.26~24.04.1 |
| Ubuntu:Pro:14.04:LTS | linux | 3.13.0-168.218, 3.13.0-184.235, 3.13.0-176.227 |
| Ubuntu:16.04:LTS | linux-snapdragon | 4.4.0-1050.54, 4.4.0-1072.77, 4.4.0-1067.72 |
| Ubuntu:20.04:LTS | linux-gke | 5.4.0-1049.52, 5.4.0-1046.48, 5.4.0-1044.46 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | 5.15.0-1073.75, 0 |
| Ubuntu:22.04:LTS | linux-realtime | 0, 5.15.0-1032.35 |
| Ubuntu:16.04:LTS | linux | 4.4.0-18.34, 0, 4.2.0-16.19 |
| Ubuntu:16.04:LTS | linux-raspi2 | 4.4.0-1074.82, 4.4.0-1075.83, 4.4.0-1076.84 |
| Ubuntu:24.04:LTS | linux-gcp-6.11 | 6.11.0-1015.15~24.04.1, 6.11.0-1016.16~24.04.1, * |
| Ubuntu:16.04:LTS | linux-kvm | 4.4.0-1010.15, 4.4.0-1004.9, 4.4.0-1017.22 |
| Ubuntu:22.04:LTS | linux-riscv | 5.15.0-1026.30, 5.15.0-1020.23, 5.15.0-1019.22 |
| Ubuntu:14.04:LTS | linux-lts-xenial | 4.4.0-21.37~14.04.1, 4.4.0-15.31~14.04.1, 4.4.0-14.30~14.04.2 |
…and 3 more
Exploit Intelligence
- https://bugzilla.redhat.com/show_bug.cgi?id=1360968 (circl)
- https://github.com/torvalds/linux/commit/f9a61eb4e2471c56a63cd804c7474128138c38ac (circl)
- https://github.com/torvalds/linux/commit/82939d7999dfc1f1998c4b1c12e2f19edbdff272 (circl)
- USN-3582-1 (circl)
- https://bugzilla.kernel.org/show_bug.cgi?id=107301 (circl)
- [oss-security] 20160825 Re: CVE request: Linux kernel mbcache lock contention denial of service. (circl)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=82939d7999dfc1f1998c4b1c12e2f19edbdff272 (circl)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=be0726d33cb8f411945884664924bed3cb8c70ee (circl)
- [oss-security] 20160822 CVE request: Linux kernel mbcache lock contention denial of service. (circl)
- https://github.com/torvalds/linux/commit/be0726d33cb8f411945884664924bed3cb8c70ee (circl)
…and 3 more exploits
Timeline
- Oct 16, 2016 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-2015-8952 third-party-advisory
- http://seclists.org/oss-sec/2016/q3/378 third-party-advisory
- https://lwn.net/Articles/668718/ third-party-advisory
- https://ubuntu.com/security/notices/USN-3582-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-3582-2 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2015-8952 third-party-advisory