CVE-2022-1012 describes a memory leak vulnerability in the Linux kernel's TCP source port generation algorithm, specifically within net/ipv4/tcp.c. This flaw, stemming from a small table perturb size, affects Linux kernel versions and could lead to information disclosure or a denial of service. With a CVSS score of 8.2 (High), it can be exploited remotely with low complexity and no user interaction, potentially causing a high impact on availability and a low impact on confidentiality. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 5.18CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
5.18CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:5.18:-:*:*:*:*:*:* | ||
5.18CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:* | ||
5.18CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:5.18:rc2:*:*:*:*:*:* | ||
5.18CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:5.18:rc3:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of service problem.
Aug 9, 2022kernel: Small table perturb size in the TCP source port generation algorithm can lead to information leak
May 2, 2022