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.
Weakness
The product does not handle or incorrectly handles an exceptional condition.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Libtirpc | Libtirpc_project | * | 1.3.3 (excluding) |
| Red Hat Enterprise Linux 8 | RedHat | libtirpc-0:1.1.4-6.el8 | * |
| Red Hat Enterprise Linux 9 | RedHat | libtirpc-0:1.3.3-0.el9 | * |
| Libtirpc | Ubuntu | esm-infra/focal | * |
| Libtirpc | Ubuntu | focal | * |
| Libtirpc | Ubuntu | impish | * |
| Libtirpc | Ubuntu | jammy | * |
| Libtirpc | Ubuntu | kinetic | * |
| Libtirpc | Ubuntu | trusty | * |
| Libtirpc | Ubuntu | upstream | * |
| Libtirpc | Ubuntu | xenial | * |
| Ntirpc | Ubuntu | esm-apps/xenial | * |
| Ntirpc | Ubuntu | impish | * |
| Ntirpc | Ubuntu | trusty | * |
| Ntirpc | Ubuntu | xenial | * |
References
- http://git.linux-nfs.org/?p=steved/libtirpc.git%3Ba=commit%3Bh=86529758570cef4c73fb9b9c4104fdc510f701ed
- https://lists.debian.org/debian-lts-announce/2022/08/msg00004.html
- https://security.gentoo.org/glsa/202210-33
- https://security.netapp.com/advisory/ntap-20221007-0004/
- https://www.debian.org/security/2022/dsa-5200
- http://git.linux-nfs.org/?p=steved/libtirpc.git%3Ba=commit%3Bh=86529758570cef4c73fb9b9c4104fdc510f701ed
- https://lists.debian.org/debian-lts-announce/2022/08/msg00004.html
- https://security.gentoo.org/glsa/202210-33
- https://security.netapp.com/advisory/ntap-20221007-0004/
- https://www.debian.org/security/2022/dsa-5200