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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | libtirpc | 1.3.2-2.1 | — |
| Debian 13 | libtirpc | 1.3.2-2.1 | — |
| Debian 12 | libtirpc | 1.3.2-2.1 | — |
| Debian 11 | libtirpc | 1.3.1-1+deb11u1 | DSA-5200-1 |
| Debian 10 | libtirpc | 1.1.4-0.4+deb10u1 | DLA-3071-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | libtirpc | 1.3.2-2ubuntu0.1 | USN-5538-1 |
| Ubuntu 20.04 LTS | libtirpc | 1.2.5-1ubuntu0.1 | USN-5538-1 |
| Ubuntu 16.04 LTS | ntirpc | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | libtirpc +1 | 1.3.3-0.el9 | RHSA-2022:8400 |
| RHEL 8 | libtirpc +1 | 1.1.4-6.el8 | RHBA-2022:2065 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | libtirpc +1 | 1.3.3-0.el9 | ALSA-2022:8400 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | libtirpc | 1.3.3-0.el9 | RLSA-2022:8400 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | libtirpc | 1.2.6-150300.3.14.1 | SUSE-SU-2022:3305-1 |
| SLES 15 SP3 | libtirpc | 1.2.6-150300.3.14.1 | SUSE-SU-2022:3305-1 |
| SLES 15 SP2 | libtirpc | 1.0.2-150000.3.18.1 | SUSE-SU-2022:2991-1 |
| SLES 15 SP1 | libtirpc | 1.0.2-150000.3.18.1 | SUSE-SU-2022:2991-1 |
| SLES 15 | libtirpc | 1.0.2-150000.3.18.1 | SUSE-SU-2022:2991-1 |
Show 21 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | libtirpc | 1.0.1-17.24.1 | SUSE-SU-2022:3791-1 |
| SLES 12 SP4 | libtirpc | 1.0.1-17.24.1 | SUSE-SU-2022:3791-1 |
| SLES 12 SP3 | libtirpc | 1.0.1-17.24.1 | SUSE-SU-2022:3791-1 |
| SLES 12 SP2 | libtirpc | 1.0.1-17.24.1 | SUSE-SU-2022:3791-1 |
| SLES for SAP 15 SP2 | libtirpc | 1.0.2-150000.3.18.1 | SUSE-SU-2022:2991-1 |
| SLES for SAP 15 SP1 | libtirpc | 1.0.2-150000.3.18.1 | SUSE-SU-2022:2991-1 |
| SLES for SAP 15 | libtirpc | 1.0.2-150000.3.18.1 | SUSE-SU-2022:2991-1 |
| SLES for SAP 12 SP5 | libtirpc | 1.0.1-17.24.1 | SUSE-SU-2022:3791-1 |
| SLES for SAP 12 SP4 | libtirpc | 1.0.1-17.24.1 | SUSE-SU-2022:3791-1 |
| SLE Micro 5.2 | libtirpc | 1.2.6-150300.3.14.1 | SUSE-SU-2022:3305-1 |
| SLE Micro 5.1 | libtirpc | 1.2.6-150300.3.14.1 | SUSE-SU-2022:3305-1 |
| SLE HPC 15 SP2 | libtirpc | 1.0.2-150000.3.18.1 | SUSE-SU-2022:2991-1 |
| SLE HPC 15 SP1 | libtirpc | 1.0.2-150000.3.18.1 | SUSE-SU-2022:2991-1 |
| SLE HPC 15 | libtirpc | 1.0.2-150000.3.18.1 | SUSE-SU-2022:2991-1 |
| SUSE OpenStack Cloud Crowbar 9 | libtirpc | 1.0.1-17.24.1 | SUSE-SU-2022:3791-1 |
| SUSE OpenStack Cloud 9 | libtirpc | 1.0.1-17.24.1 | SUSE-SU-2022:3791-1 |
| SUSE Manager Server 4.1 | libtirpc | 1.0.2-150000.3.18.1 | SUSE-SU-2022:2991-1 |
| SUSE Manager Retail Branch Server 4.1 | libtirpc | 1.0.2-150000.3.18.1 | SUSE-SU-2022:2991-1 |
| SUSE Manager Proxy 4.1 | libtirpc | 1.0.2-150000.3.18.1 | SUSE-SU-2022:2991-1 |
| SUSE Enterprise Storage 7 | libtirpc | 1.0.2-150000.3.18.1 | SUSE-SU-2022:2991-1 |
| SUSE Enterprise Storage 6 | libtirpc | 1.0.2-150000.3.18.1 | SUSE-SU-2022:2991-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.4 | libtirpc | 1.2.6-150300.3.14.1 | SUSE-SU-2022:3305-1 |
| openSUSE Leap 15.3 | libtirpc | 1.2.6-150300.3.14.1 | SUSE-SU-2022:3305-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.2 | libtirpc | 1.2.6-150300.3.14.1 | SUSE-SU-2022:3305-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | libtirpc | 1.3.2-r2 | — |
| Alpine v3.23 | libtirpc | 1.3.2-r2 | — |
| Alpine v3.22 | libtirpc | 1.3.2-r2 | — |
| Alpine v3.21 | libtirpc | 1.3.2-r2 | — |
| Alpine v3.20 | libtirpc | 1.3.2-r2 | — |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | libtirpc | 1.3.2-r2 | — |
| Alpine v3.18 | libtirpc | 1.3.2-r2 | — |
| Alpine v3.17 | libtirpc | 1.3.2-r2 | — |
| Alpine v3.16 | libtirpc | 1.3.2-r1 | — |
| Alpine v3.15 | libtirpc | 1.3.2-r1 | — |
| Alpine v3.14 | libtirpc | 1.3.2-r1 | — |
| Alpine v3.13 | libtirpc | 1.3.1-r1 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | libtirpc +1 | 1.3.3-0.amzn2023 | ALAS2023-2025-890 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | libtirpc +1 | 1.3.3-0.el9 | ELSA-2022-8400 |
Advisories 22
- ALSA-2022:8400 Moderate: libtirpc security update AlmaLinux Security Advisories · Oct 29, 2026
- SSA-398330 SSA-398330: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.5 Siemens ProductCERT · Oct 13, 2026
- WID-SEC-2024-0794 Dell ECS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 11, 2026
- RHSA-2022:8400 Red Hat Security Advisory: libtirpc security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-5538-1 libtirpc vulnerability Ubuntu Security Notices (USN) · Apr 27, 2026
- DSA-5200-1 libtirpc - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3071-1 libtirpc - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2022:8400 Moderate: libtirpc security update Rocky Linux Security Advisories · Feb 5, 2026
- SUSE-SU-2022:3791-1 Security update for libtirpc SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:2991-1 Security update for libtirpc SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:3305-1 Security update for libtirpc SUSE / openSUSE Security Updates · Feb 4, 2026
- RHBA-2022:2065 Red Hat Bug Fix Advisory: libtirpc bug fix and enhancement update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- WID-SEC-2023-1542 Red Hat OpenShift: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 18, 2025
- ICSA-23-348-10 Siemens SIMATIC S7-1500 CISA ICS & IT advisories · Aug 12, 2025
- VDE-2023-001 PHOENIX CONTACT: Multiple Vulnerabilities in PLCnext Firmware CERT@VDE · Jun 5, 2025
- ICSA-23-194-04 Siemens SIMATIC MV500 Devices CISA ICS & IT advisories · May 6, 2025
- ICSA-23-103-09 Siemens SCALANCE XCM332 CISA ICS & IT advisories · May 6, 2025
- WID-SEC-2022-2052 Mehrere Red Hat Enterprise Linux Pakete: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 29, 2025
- ALAS2023-2025-890 Important: libtirpc security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Mar 5, 2025
- SSA-561322 SSA-561322: Multiple Vulnerabilities in SIMATIC MV500 Devices before V3.3.4 Siemens ProductCERT · Jul 11, 2023
- SSA-558014 SSA-558014: Third-Party Component Vulnerabilities in SCALANCE XCM332 before V2.2 Siemens ProductCERT · Apr 11, 2023
- ELSA-2022-8400 Moderate: libtirpc security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 22, 2022
References
- http://git.linux-nfs.org/?p=steved/libtirpc.git%3Ba=commit%3Bh=86529758570cef4c73fb9b9c4104fdc510f701ed
- DSA-5200 vendor-advisory
- [debian-lts-announce] 20220812 [SECURITY] [DLA 3071-1] libtirpc security update mailing-list
- https://security.netapp.com/advisory/ntap-20221007-0004/
- GLSA-202210-33 vendor-advisory