Description
A stack-based buffer overflow was found in rpcbind's rpcinfo utility. In rpcbdump() short mode (used by `rpcinfo -s`), version numbers from a remote RPCBPROC_DUMP reply are written into a fixed-size stack buffer without bounds checking. A user or administrator who runs `rpcinfo -s` against a malicious or compromised rpcbind endpoint could experience a crash or denial of service of the rpcinfo client.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 5 | — | — |
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 | rpcbind | No fix yet | — |
| Debian 13 | rpcbind | No fix yet | — |
| Debian 12 | rpcbind | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | rpcbind | No fix yet | — |
| Ubuntu 26.04 LTS | rpcbind | No fix yet | — |
| Ubuntu 24.04 LTS | rpcbind | No fix yet | — |
| Ubuntu 22.04 LTS | rpcbind | No fix yet | — |
| Ubuntu 20.04 LTS | rpcbind | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | rpcbind | No fix yet | — |
| Ubuntu Pro 16.04 LTS | rpcbind | No fix yet | — |
| Ubuntu Pro 14.04 LTS | rpcbind | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
| SLES 15 SP6 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
| SLES 15 SP5 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
| SLES 15 SP4 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
| SLES 12 SP5 | rpcbind | 0.2.3-24.15.1 | SUSE-SU-2026:4075-1 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | rpcbind | 1.2.9-160000.2.1 | SUSE-SU-2026:23628-1 |
| SLES for SAP 15 SP6 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
| SLES for SAP 15 SP5 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
| SLES for SAP 15 SP4 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
| SLES 16.0 | rpcbind | 1.2.9-160000.2.1 | SUSE-SU-2026:23628-1 |
| SLE Micro 6.2 | rpcbind | 1.2.9-160000.2.1 | SUSE-SU-2026:23495-1 |
| SLE Micro 6.1 | rpcbind | 1.2.9-slfo.1.1_2.1 | SUSE-SU-2026:23518-1 |
| SLE Micro 6.0 | rpcbind | 1.2.9-2.1 | SUSE-SU-2026:23451-1 |
| SLE Micro 5.5 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
| SLE Micro 5.4 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
| SLE Micro 5.3 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
| SLE HPC 15 SP5 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
| SLE HPC 15 SP4 | rpcbind | 0.2.3-150000.5.17.1 | SUSE-SU-2026:4568-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | rpcbind | 1.2.9-2.1 | openSUSE-SU-2026:11728-1 |
| openSUSE Leap 16.0 | rpcbind | 1.2.9-160000.2.1 | openSUSE-SU-2026:21765-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | rpcbind | 1.2.6-0.amzn2023.0.3 | ALAS2023-2026-3169 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | rpcbind | No fix yet | — |
Advisories 9
- ALAS2023-2026-3169 Important: rpcbind security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Oct 12, 2026
- SUSE-SU-2026:4568-1 Security update for rpcbind SUSE / openSUSE Security Updates · Oct 8, 2026
- SUSE-SU-2026:23628-1 Security update for rpcbind SUSE / openSUSE Security Updates · Sep 29, 2026
- SUSE-SU-2026:23518-1 Security update for rpcbind SUSE / openSUSE Security Updates · Sep 15, 2026
- SUSE-SU-2026:23495-1 Security update for rpcbind SUSE / openSUSE Security Updates · Sep 14, 2026
- SUSE-SU-2026:23451-1 Security update for rpcbind SUSE / openSUSE Security Updates · Sep 14, 2026
- SUSE-SU-2026:4075-1 Security update for rpcbind SUSE / openSUSE Security Updates · Sep 13, 2026
- openSUSE-SU-2026:21765-1 Security update for rpcbind SUSE / openSUSE Security Updates · Sep 9, 2026
- openSUSE-SU-2026:11728-1 rpcbind-1.2.9-2.1 on GA media SUSE / openSUSE Security Updates · Sep 9, 2026
References
- https://access.redhat.com/security/cve/CVE-2026-16461 vdb-entry
- RHBZ#2502719 issue-tracking