Vulnerability · Published May 5, 2020 · Assigned by mitre
CVE-2020-12659
Medium 6.7
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 0.7% (higher than 54% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.7Medium
Exploit odds (30 days)0.7%top 46.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An issue was discovered in the Linux kernel before 5.6.7. xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) because of a lack of headroom validation.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | kernel-tools-libs-devel | 4.18.0-240.el8 | ALSA-2020:4431 |
| Debian:12 | linux | 5.6.7-1 | DEBIAN-CVE-2020-12659 |
| Debian:13 | linux | 5.6.7-1 | DEBIAN-CVE-2020-12659 |
| Debian:14 | linux | 5.6.7-1 | DEBIAN-CVE-2020-12659 |
Affected products (as reported)
References
- https://bugzilla.kernel.org/show_bug.cgi?id=207225 x_refsource_MISC
- https://github.com/torvalds/linux/commit/99e3a236dd43d06c65af0a2ef9cb44306aef6e02 x_refsource_MISC
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99e3a236dd43d06c65af0a2ef9cb44306aef6e02 x_refsource_MISC
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.7 x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20200608-0001/ x_refsource_CONFIRM
- openSUSE-SU-2020:0801 vendor-advisory, x_refsource_SUSE
- USN-4388-1 vendor-advisory, x_refsource_UBUNTU
- USN-4389-1 vendor-advisory, x_refsource_UBUNTU
- USN-4387-1 vendor-advisory, x_refsource_UBUNTU