CVE-2021-46828 is a denial-of-service vulnerability affecting libtirpc versions prior to 1.3.3rc1, impacting Debian Linux and libtirpc projects. Remote attackers can exhaust file descriptors by mishandling idle TCP connections, leading to an infinite loop and preventing new connections. Rated with a CVSS score of 7.5 (High), this vulnerability has a low attack complexity and no user interaction required, with a high impact on availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.3.3CPE matchmatch criteria | cpe:2.3:a:libtirpc_project:libtirpc:*:*:*:*:*:*:*:* | ||
10.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | ||
11.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
CVE-2021-46828
Aug 9, 2022libtirpc: DoS vulnerability with lots of connections
Jul 20, 2022In libtirpc before 1.3.3rc1 remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are mishandled. This can in turn lead to an svc_run infinite loop without accepting new connections.
Jul 12, 2022