Vulnerability in Linux Kernel
CVE-2023-1390
A remote denial of service vulnerability was found in the Linux kernel’s TIPC kernel module. The while loop in tipc_link_xmit() hits an unknown state while attempting to parse SKBs, which are not in the queue. Sending two small UDP packets to a system with a UDP bearer results in the CPU utilization for the system to instantly spike to 100%, causing a denial of service condition.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.051 (92.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.051 · newest: 0.051 · change: 0.000
Affected products
- Linux Kernel — versions 5.11
- Linux Kernel (Tipc Module) — versions Fixed in kernel 5.11-rc4
Weakness classification (CWE)
References
- gist.github.com/netspooky/bee2d07022f6350bb88eaa48e571d9b5 (Third Party Advisory)
- infosec.exchange/@_mattata/109427999461122360
- github.com/torvalds/linux/commit/b77413446408fdd256599daf00d5be72b5f3e7c6 (Patch, Vendor Advisory)
- security.netapp.com/advisory/ntap-20230420-0001/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-1390?
- CVE-2023-1390 is a high-severity vulnerability in Linux Kernel, classified under CWE-1050. CVSS score: 7.5/10. Published 2023-03-16.
- How severe is CVE-2023-1390?
- High severity. CVSS v3 base score is 7.5 out of 10.