Vulnerability · Published Dec 23, 2022 · Assigned by mitre
CVE-2022-47941
High 7.5
In plain English
A high-severity memory leak in the linux package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 5.2% (higher than 93% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)5.2%top 7.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. fs/ksmbd/smb2pdu.c omits a kfree call in certain smb2_handle_negotiate error conditions, aka a memory leak.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 5.19.6-1 | DEBIAN-CVE-2022-47941 |
| Debian:13 | linux | 5.19.6-1 | DEBIAN-CVE-2022-47941 |
| Debian:14 | linux | 5.19.6-1 | DEBIAN-CVE-2022-47941 |
| Ubuntu:22.04:LTS | linux | 5.15.0-53.59 | UBUNTU-CVE-2022-47941 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1023.27 | UBUNTU-CVE-2022-47941 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1023.29 | UBUNTU-CVE-2022-47941 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1024.30.1 | UBUNTU-CVE-2022-47941 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1022.29 | UBUNTU-CVE-2022-47941 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1020.25 | UBUNTU-CVE-2022-47941 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1008.12 | UBUNTU-CVE-2022-47941 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1018.21 | UBUNTU-CVE-2022-47941 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2022-47941 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1018.23 | UBUNTU-CVE-2022-47941 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1021.26 | UBUNTU-CVE-2022-47941 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-53.59 | UBUNTU-CVE-2022-47941 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1015.15 | UBUNTU-CVE-2022-47941 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2022-47941 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1022.28 | UBUNTU-CVE-2022-47941 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1018.20 | UBUNTU-CVE-2022-47941 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2022-47941 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2022-47941 |
| Ubuntu:22.04:LTS | linux-riscv | 5.15.0-1023.27 | UBUNTU-CVE-2022-47941 |
Affected products (as reported)
Weakness: CWE-401 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2
- https://github.com/torvalds/linux/commit/aa7253c2393f6dcd6a1468b0792f6da76edad917
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=aa7253c2393f6dcd6a1468b0792f6da76edad917
- http://www.openwall.com/lists/oss-security/2022/12/23/10
- https://www.zerodayinitiative.com/advisories/ZDI-22-1687/