Vulnerability · Published Aug 31, 2022 · Assigned by redhat
CVE-2022-1263
Medium 5.5
In plain English
A medium-severity null pointer dereference in Kernel:KVM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.4%top 61.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A NULL pointer dereference issue was found in KVM when releasing a vCPU with dirty ring support enabled. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 5.17.3-1 | DEBIAN-CVE-2022-1263 |
| Debian:13 | linux | 5.17.3-1 | DEBIAN-CVE-2022-1263 |
| Debian:14 | linux | 5.17.3-1 | DEBIAN-CVE-2022-1263 |
| Ubuntu:22.04:LTS | linux | 5.15.0-37.39 | USN-5469-1 |
| Ubuntu:22.04:LTS | linux | 5.15.0-37.39 | UBUNTU-CVE-2022-1263 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1011.14 | UBUNTU-CVE-2022-1263 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1011.14 | USN-5469-1 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1010.12 | UBUNTU-CVE-2022-1263 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1010.12 | USN-5469-1 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1008.12 | USN-5469-1 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1008.12 | UBUNTU-CVE-2022-1263 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1008.10 | UBUNTU-CVE-2022-1263 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1008.10 | USN-5469-1 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1007.8 | UBUNTU-CVE-2022-1263 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1007.8 | USN-5469-1 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2022-1263 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1008.11 | UBUNTU-CVE-2022-1263 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1008.11 | USN-5469-1 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1010.11 | USN-5469-1 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1010.11 | UBUNTU-CVE-2022-1263 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-37.39 | UBUNTU-CVE-2022-1263 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-37.39 | USN-5469-1 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | 5.17.0-1004.4 | UBUNTU-CVE-2022-1263 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1009.12 | USN-5469-1 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1009.12 | UBUNTU-CVE-2022-1263 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1011.13 | USN-5469-1 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1011.13 | UBUNTU-CVE-2022-1263 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2022-1263 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2022-1263 |
| Ubuntu:22.04:LTS | linux-riscv | 5.15.0-1012.13 | UBUNTU-CVE-2022-1263 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | Kernel:KVM | Fixed in kernel v5.18-rc3 |
Weakness: CWE-476
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2072698 x_refsource_MISC
- https://www.openwall.com/lists/oss-security/2022/04/07/1 x_refsource_MISC
- https://github.com/torvalds/linux/commit/5593473a1e6c743764b08e3b6071cb43b5cfa6c4 x_refsource_MISC
- https://access.redhat.com/security/cve/CVE-2022-1263 x_refsource_MISC