Description
A signed integer overflow in the PCP __pmGetPDU() function can be exploited via crafted network packets during PDU processing or SASL negotiation. This permanently blinds the affected daemon, resulting in a total denial of service (DoS) for subsequent packet reads.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | — | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | — | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | — | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| 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 | pcp | 7.2.0-1 | — |
| Debian 13 | pcp | No fix yet | — |
| Debian 12 | pcp | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | pcp | No fix yet | — |
| Ubuntu 26.04 LTS | pcp | No fix yet | — |
| Ubuntu 24.04 LTS | pcp | No fix yet | — |
| Ubuntu 22.04 LTS | pcp | No fix yet | — |
| Ubuntu 20.04 LTS | pcp | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | pcp | No fix yet | — |
| Ubuntu 16.04 LTS | pcp | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | pcp +110 | 7.0.3-5.el10_2 | RHSA-2026:55617 |
| RHEL 9 | pcp +106 | 6.3.7-8.el9_8.4 | RHSA-2026:55740 |
| RHEL 8 | pcp +99 | 5.3.7-22.el8_10.5 | RHSA-2026:55560 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10.0 EUS | pcp +105 | 6.3.7-1.el10_0.1 | RHSA-2026:72273 |
| RHEL 9.6 EUS | pcp +105 | 6.3.7-1.el9_6.1 | RHSA-2026:72272 |
| RHEL 9.4 E4S | pcp +103 | 6.2.0-5.el9_4.2 | RHSA-2026:72593 |
| RHEL 9.2 E4S | pcp +100 | 6.0.1-8.el9_2.2 | RHSA-2026:72594 |
| RHEL 8.8 TUS | pcp +99 | 5.3.7-19.el8_8.1 | RHSA-2026:73767 |
| RHEL 8.8 E4S | pcp +99 | 5.3.7-19.el8_8.1 | RHSA-2026:73767 |
| RHEL 8.6 EUS Long Life | pcp +99 | 5.3.5-10.el8_6.1 | RHSA-2026:74612 |
| RHEL 8.6 AUS | pcp +99 | 5.3.5-10.el8_6.1 | RHSA-2026:74612 |
| RHEL 8.4 EUS Long Life | pcp +99 | 5.2.5-8.el8_4.1 | RHSA-2026:74613 |
| RHEL 8.4 AUS | pcp +99 | 5.2.5-8.el8_4.1 | RHSA-2026:74613 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | pcp +110 | 7.0.3-5.el10_2 | ALSA-2026:55617 |
| AlmaLinux 9 | pcp +106 | 6.3.7-8.el9_8.4 | ALSA-2026:55740 |
| AlmaLinux 8 | pcp-doc +77 | 5.3.7-22.el8_10.5 | ALSA-2026:55560 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | pcp | 7.0.3-5.el10_2 | RLSA-2026:55617 |
| Rocky Linux 9 | pcp | 6.3.7-8.el9_8.4 | RLSA-2026:55740 |
| Rocky Linux 8 | pcp | 5.3.7-22.el8_10.5 | RLSA-2026:55560 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | pcp | 6.2.0-150600.3.12.1 | SUSE-SU-2026:3507-1 |
| SLES 15 SP6 | pcp | 6.2.0-150600.3.12.1 | SUSE-SU-2026:3507-1 |
| SLES 15 SP5 | pcp | 6.2.0-150500.8.9.1 | SUSE-SU-2026:3505-1 |
| SLES 15 SP4 | pcp | 6.2.0-150400.5.15.1 | SUSE-SU-2026:3506-1 |
| SLES 12 SP5 | pcp | 6.2.0-6.32.1 | SUSE-SU-2026:3508-1 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | pcp | 6.2.0-160000.4.1 | SUSE-SU-2026:23316-1 |
| SLES for SAP 15 SP6 | pcp | 6.2.0-150600.3.12.1 | SUSE-SU-2026:3507-1 |
| SLES for SAP 15 SP5 | pcp | 6.2.0-150500.8.9.1 | SUSE-SU-2026:3505-1 |
| SLES for SAP 15 SP4 | pcp | 6.2.0-150400.5.15.1 | SUSE-SU-2026:3506-1 |
| SLES 16.0 | pcp | 6.2.0-160000.4.1 | SUSE-SU-2026:23316-1 |
| SLE Micro 6.2 | pcp | 6.2.0-160000.4.1 | SUSE-SU-2026:23277-1 |
| SLE Micro 6.1 | pcp | 6.2.0-slfo.1.1_6.1 | SUSE-SU-2026:23174-1 |
| SLE Micro 6.0 | pcp | 6.2.0-2.1 | SUSE-SU-2026:23064-1 |
| SLE HPC 15 SP5 | pcp | 6.2.0-150500.8.9.1 | SUSE-SU-2026:3505-1 |
| SLE HPC 15 SP4 | pcp | 6.2.0-150400.5.15.1 | SUSE-SU-2026:3506-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | pcp | 6.3.8-3.1 | openSUSE-SU-2026:11490-1 |
| openSUSE Leap 16.0 | pcp | 6.2.0-160000.4.1 | openSUSE-SU-2026:21636-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | pcp +96 | 4.3.2-12.amzn2.0.3 | ALAS2-2026-3857 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | pcp | No fix yet | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | pcp +110 | 7.0.3-5.0.1.el10_2 | ELSA-2026-55617 |
| Oracle Linux 9 | pcp +107 | 6.3.7-8.0.1.el9_8.4 | ELSA-2026-55740 |
| Oracle Linux 8 | pcp +100 | 5.3.7-22.0.12.el8_10.5 | ELSA-2026-55560 |
Advisories 32
- WID-SEC-2026-3595 IBM QRadar SIEM: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 2, 2026
- ALSA-2026:55740 Important: pcp security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:55617 Important: pcp security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:55560 Important: pcp security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:74613 Red Hat Security Advisory: pcp security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:74612 Red Hat Security Advisory: pcp security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:73767 Red Hat Security Advisory: pcp security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:72593 Red Hat Security Advisory: pcp security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:72594 Red Hat Security Advisory: pcp security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:72273 Red Hat Security Advisory: pcp security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:72272 Red Hat Security Advisory: pcp security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:55740 Red Hat Security Advisory: pcp security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:55617 Red Hat Security Advisory: pcp security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2026:55560 Red Hat Security Advisory: pcp security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- WID-SEC-2026-2868 Red Hat Enterprise Linux (pcp): Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 1, 2026
- SUSE-SU-2026:23316-1 Security update for pcp SUSE / openSUSE Security Updates · Sep 10, 2026
- SUSE-SU-2026:23277-1 Security update for pcp SUSE / openSUSE Security Updates · Aug 31, 2026
- openSUSE-SU-2026:21636-1 Security update for pcp SUSE / openSUSE Security Updates · Aug 27, 2026
- SUSE-SU-2026:23174-1 Security update for pcp SUSE / openSUSE Security Updates · Aug 22, 2026
- ELSA-2026-55740 Important: pcp security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Aug 19, 2026
- RLSA-2026:55617 Important: pcp security update Rocky Linux Security Advisories · Aug 18, 2026
- RLSA-2026:55740 Important: pcp security update Rocky Linux Security Advisories · Aug 18, 2026
- RLSA-2026:55560 Important: pcp security update Rocky Linux Security Advisories · Aug 18, 2026
- ELSA-2026-55560 Important: pcp security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Aug 18, 2026
- ELSA-2026-55617 Important: pcp security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Aug 18, 2026
- ALAS2-2026-3857 Important: pcp security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Aug 17, 2026
- SUSE-SU-2026:23064-1 Security update for pcp SUSE / openSUSE Security Updates · Aug 12, 2026
- openSUSE-SU-2026:11490-1 libpcp-devel-6.3.8-3.1 on GA media SUSE / openSUSE Security Updates · Aug 11, 2026
- SUSE-SU-2026:3505-1 Security update for pcp SUSE / openSUSE Security Updates · Aug 6, 2026
- SUSE-SU-2026:3506-1 Security update for pcp SUSE / openSUSE Security Updates · Aug 6, 2026
- SUSE-SU-2026:3507-1 Security update for pcp SUSE / openSUSE Security Updates · Aug 6, 2026
- SUSE-SU-2026:3508-1 Security update for pcp SUSE / openSUSE Security Updates · Aug 6, 2026
References
- RHSA-2026:55560 vendor-advisory
- RHSA-2026:55617 vendor-advisory
- RHSA-2026:55740 vendor-advisory
- RHSA-2026:72272 vendor-advisory
- RHSA-2026:72273 vendor-advisory
- RHSA-2026:72593 vendor-advisory
- RHSA-2026:72594 vendor-advisory
- RHSA-2026:73767 vendor-advisory
- RHSA-2026:74612 vendor-advisory
- RHSA-2026:74613 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-16529 vdb-entry
- RHBZ#2506032 issue-tracking