Vulnerability · Published Nov 28, 2020 · Assigned by mitre
CVE-2020-29370
High 7.0
In plain English
A high-severity security flaw in the linux package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.0High
Exploit odds (30 days)0.6%top 50.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack tooling1Public PoC
Official description
An issue was discovered in kmem_cache_alloc_bulk in mm/slub.c in the Linux kernel before 5.5.11. The slowpath lacks the required TID increment, aka CID-fd4d9c7d0c71.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 5.5.13-1 | DEBIAN-CVE-2020-29370 |
| Debian:13 | linux | 5.5.13-1 | DEBIAN-CVE-2020-29370 |
| Debian:14 | linux | 5.5.13-1 | DEBIAN-CVE-2020-29370 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2020-29370 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2020-29370 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2020-29370 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2020-29370 |
Affected products (as reported)
References
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.11 x_refsource_MISC
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fd4d9c7d0c71866ec0c2825189ebd2ce35bd95b8 x_refsource_MISC
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2022 x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20201218-0001/ x_refsource_CONFIRM