Vulnerability · Published Jun 5, 2022 · Assigned by mitre
CVE-2022-32296
Low 3.3
In plain English
A low-severity security flaw 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 0.4% (higher than 38% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)3.3Low
Exploit odds (30 days)0.4%top 61.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are used. This occurs because of use of Algorithm 4 ("Double-Hash Port Selection Algorithm") of RFC 6056.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 5.17.11-1 | DEBIAN-CVE-2022-32296 |
| Debian:13 | linux | 5.17.11-1 | DEBIAN-CVE-2022-32296 |
| Debian:14 | linux | 5.17.11-1 | DEBIAN-CVE-2022-32296 |
| Ubuntu:22.04:LTS | linux | 5.15.0-47.51 | UBUNTU-CVE-2022-32296 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1019.23 | UBUNTU-CVE-2022-32296 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1019.24 | UBUNTU-CVE-2022-32296 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1017.23 | UBUNTU-CVE-2022-32296 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1015.18 | UBUNTU-CVE-2022-32296 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1002.4 | UBUNTU-CVE-2022-32296 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1013.15 | UBUNTU-CVE-2022-32296 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2022-32296 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1015.20 | USN-5616-1 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1013.17 | UBUNTU-CVE-2022-32296 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1017.21 | UBUNTU-CVE-2022-32296 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-47.53 | UBUNTU-CVE-2022-32296 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1007.7 | UBUNTU-CVE-2022-32296 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | 5.17.0-1011.12 | UBUNTU-CVE-2022-32296 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2022-32296 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1017.22 | UBUNTU-CVE-2022-32296 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1014.16 | UBUNTU-CVE-2022-32296 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2022-32296 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2022-32296 |
| Ubuntu:22.04:LTS | linux-riscv | 5.15.0-1018.21 | UBUNTU-CVE-2022-32296 |
Affected products (as reported)
References
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4c2c8f03a5ab7cb04ec64724d7d176d00bcc91e5 x_refsource_MISC
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.9 x_refsource_MISC
- [debian-lts-announce] 20220701 [SECURITY] [DLA 3065-1] linux security update mailing-list, x_refsource_MLIST
- DSA-5173 vendor-advisory, x_refsource_DEBIAN
- https://arxiv.org/abs/2209.12993 x_refsource_MISC
- https://github.com/0xkol/rfc6056-device-tracker x_refsource_MISC
- https://cert-portal.siemens.com/productcert/html/ssa-419740.html
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html