| Name | CVE-2021-46828 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3071-1, DSA-5200-1 |
| Debian Bugs | 1015873 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libtirpc (PTS) | jessie, jessie (lts) | 0.2.5-1+deb8u3 | fixed |
| stretch | 0.2.5-1.2+deb9u1 | fixed |
| buster | 1.1.4-0.4 | vulnerable |
| buster (security) | 1.1.4-0.4+deb10u1 | fixed |
| bullseye (security), bullseye | 1.3.1-1+deb11u1 | fixed |
| bookworm | 1.3.3+ds-1 | fixed |
| sid, trixie | 1.3.4+ds-1.3 | fixed |
The information below is based on the following data on fixed versions.
Notes
Fixed by: http://git.linux-nfs.org/?p=steved/libtirpc.git;a=commit;h=86529758570cef4c73fb9b9c4104fdc510f701ed (libtirpc-1-3-3-rc1)
Introduced by: http://git.linux-nfs.org/?p=steved/libtirpc.git;a=commit;h=b2c9430f46c4ac848957fb8adaac176a3f6ac03f (libtirpc-0-3-3-rc3)
[stretch] - libtirpc <not-affected> (Vulnerable code introduced later)
[jessie] - libtirpc <not-affected> (Vulnerable code introduced later)