VulnerabilityModified
CVE-2021-46828
In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are mishandled.
HIGH 7.5EPSS 2.61%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.61%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In 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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.61% probability · 85th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-755, CWE-835
- Affected
- libtirpc project/libtirpc · debian/debian linux
- Source
- cve@mitre.org
References
- http://git.linux-nfs.org/?p=steved/libtirpc.git%3Ba=commit%3Bh=86529758570cef4c73fb9b9c4104fdc510f701ed
- https://lists.debian.org/debian-lts-announce/2022/08/msg00004.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202210-33Third Party Advisory
- https://security.netapp.com/advisory/ntap-20221007-0004/Third Party Advisory
- https://www.debian.org/security/2022/dsa-5200Third Party Advisory
- http://git.linux-nfs.org/?p=steved/libtirpc.git%3Ba=commit%3Bh=86529758570cef4c73fb9b9c4104fdc510f701ed
- https://lists.debian.org/debian-lts-announce/2022/08/msg00004.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202210-33Third Party Advisory
- https://security.netapp.com/advisory/ntap-20221007-0004/Third Party Advisory
- https://www.debian.org/security/2022/dsa-5200Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.