Vulnerability · Published Feb 6, 2020 · Assigned by mitre
CVE-2020-8649
Medium 5.9
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 0.5% (higher than 42% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.9Medium
Exploit odds (30 days)0.5%top 57.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vgacon_invert_region function in drivers/video/console/vgacon.c.
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 | 5.5.13-1 | DEBIAN-CVE-2020-8649 |
| Debian:13 | linux | 5.5.13-1 | DEBIAN-CVE-2020-8649 |
| Debian:14 | linux | 5.5.13-1 | DEBIAN-CVE-2020-8649 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2020-8649 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2020-8649 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2020-8649 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2020-8649 |
Affected products (as reported)
References
- https://bugzilla.kernel.org/show_bug.cgi?id=206357 x_refsource_MISC
- openSUSE-SU-2020:0388 vendor-advisory, x_refsource_SUSE
- [debian-lts-announce] 20200609 [SECURITY] [DLA 2241-1] linux security update mailing-list, x_refsource_MLIST
- [debian-lts-announce] 20200610 [SECURITY] [DLA 2242-1] linux-4.9 security update mailing-list, x_refsource_MLIST
- [debian-lts-announce] 20200610 [SECURITY] [DLA 2241-2] linux security update mailing-list, x_refsource_MLIST
- DSA-4698 vendor-advisory, x_refsource_DEBIAN