Vulnerability · Published Sep 13, 2020 · Assigned by mitre
CVE-2020-25285
Medium 6.4
In plain English
A medium-severity security flaw in the kernel-tools-libs-devel package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.4Medium
Exploit odds (30 days)0.3%top 80.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A race condition between hugetlb sysctl handlers in mm/hugetlb.c in the Linux kernel before 5.8.8 could be used by local attackers to corrupt memory, cause a NULL pointer dereference, or possibly have unspecified other impact, aka CID-17743798d812.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | kernel-tools-libs-devel | 4.18.0-305.el8 | ALSA-2021:1578 |
| Debian:12 | linux | 5.8.10-1 | DEBIAN-CVE-2020-25285 |
| Debian:13 | linux | 5.8.10-1 | DEBIAN-CVE-2020-25285 |
| Debian:14 | linux | 5.8.10-1 | DEBIAN-CVE-2020-25285 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2020-25285 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2020-25285 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2020-25285 |
Affected products (as reported)
References
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17743798d81238ab13050e8e2833699b54e15467 x_refsource_MISC
- https://twitter.com/grsecurity/status/1303749848898904067 x_refsource_MISC
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.8 x_refsource_MISC
- [debian-lts-announce] 20200928 [SECURITY] [DLA 2385-1] linux-4.19 security update mailing-list, x_refsource_MLIST
- https://security.netapp.com/advisory/ntap-20201009-0002/ x_refsource_CONFIRM
- USN-4576-1 vendor-advisory, x_refsource_UBUNTU
- USN-4579-1 vendor-advisory, x_refsource_UBUNTU
- [debian-lts-announce] 20201030 [SECURITY] [DLA 2420-1] linux security update mailing-list, x_refsource_MLIST
- [debian-lts-announce] 20201031 [SECURITY] [DLA 2420-2] linux regression update mailing-list, x_refsource_MLIST