Vulnerability · Published Mar 23, 2023 · Assigned by redhat
CVE-2023-1249
Medium 5.5
In plain English
A medium-severity use-after-free in Kernel. 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 26% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.3%top 74.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A use-after-free flaw was found in the Linux kernel’s core dump subsystem. This flaw allows a local user to crash the system. Only if patch 390031c94211 ("coredump: Use the vma snapshot in fill_files_note") not applied yet, then kernel could be affected.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 5.17.3-1 | DEBIAN-CVE-2023-1249 |
| Debian:13 | linux | 5.17.3-1 | DEBIAN-CVE-2023-1249 |
| Debian:14 | linux | 5.17.3-1 | DEBIAN-CVE-2023-1249 |
| Ubuntu:22.04:LTS | linux | 5.15.0-37.39 | UBUNTU-CVE-2023-1249 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1011.14 | UBUNTU-CVE-2023-1249 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1010.12 | UBUNTU-CVE-2023-1249 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1008.12 | UBUNTU-CVE-2023-1249 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1008.10 | UBUNTU-CVE-2023-1249 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1007.8 | UBUNTU-CVE-2023-1249 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2023-1249 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1008.11 | UBUNTU-CVE-2023-1249 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1010.11 | UBUNTU-CVE-2023-1249 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-37.39 | UBUNTU-CVE-2023-1249 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | 5.17.0-1004.4 | UBUNTU-CVE-2023-1249 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1009.12 | UBUNTU-CVE-2023-1249 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1011.13 | UBUNTU-CVE-2023-1249 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2023-1249 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2023-1249 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2023-1249 |
Affected products (as reported)
Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H