SUSE-SU-2026:3508-1: critical: Security update for pcp

Wed Aug 5 20:33:49 UTC 2026

# Security update for pcp

Announcement ID: SUSE-SU-2026:3508-1  
Release Date: 2026-08-05T13:21:27Z  
Rating: critical  
References:

  * bsc#1272922
  * bsc#1272923
  * bsc#1272924
  * bsc#1272925
  * bsc#1272926
  * bsc#1272927
  * bsc#1272928
  * bsc#1272930

Cross-References:

  * CVE-2026-16524
  * CVE-2026-16526
  * CVE-2026-16527
  * CVE-2026-16529
  * CVE-2026-16530
  * CVE-2026-16531

CVSS scores:

  * CVE-2026-16524 ( SUSE ):  9.2
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-16524 ( SUSE ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-16524 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-16526 ( SUSE ):  8.5
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-16526 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-16526 ( NVD ):  8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-16527 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-16527 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  * CVE-2026-16527 ( NVD ):  7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
  * CVE-2026-16529 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-16529 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-16529 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-16530 ( SUSE ):  8.8
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-16530 ( SUSE ):  8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
  * CVE-2026-16530 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
  * CVE-2026-16531 ( SUSE ):  6.9
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-16531 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2026-16531 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected Products:

  * SUSE Linux Enterprise High Performance Computing 12 SP5
  * SUSE Linux Enterprise Server 12 SP5
  * SUSE Linux Enterprise Server 12 SP5 LTSS
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  * SUSE Linux Enterprise Server for SAP Applications 12 SP5

An update that solves six vulnerabilities and has two security fixes can now be
installed.

## Description:

This update for pcp fixes the following issues:

  * CVE-2026-16524: command injection in `linux_sockets` PMDA via
    `network.persocket.filter` (bsc#1272922).
  * CVE-2026-16526: pmdaroot privilege escalation via `FD_CLOEXEC` fd
    inheritance and missing peer credentials (bsc#1272923).
  * CVE-2026-16527: missing authentication flags in pmproxy REST API
    (bsc#1272924).
  * CVE-2026-16529: integer overflow in `__pmGetPDU` leads to permanent DoS
    (bsc#1272925).
  * CVE-2026-16530: multiple OOB reads in libpcp record and PDU decoders
    (bsc#1272926).
  * CVE-2026-16531: path traversal via hostname in pmproxy logger servlet
    (bsc#1272927).
  * Command injection in `pmieconf` `write_pmiefile` via `$HOME` and `-f`
    (bsc#1272928).
  * Command injection in `pmlogcp/pmlogmv` `do_link` via unsanitised filenames
    (bsc#1272930).

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * SUSE Linux Enterprise Server 12 SP5 LTSS  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-3508=1

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-3508=1

## Package List:

  * SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * pcp-devel-6.2.0-6.32.1
    * pcp-devel-debuginfo-6.2.0-6.32.1
    * libpcp-devel-6.2.0-6.32.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    * pcp-devel-6.2.0-6.32.1
    * pcp-devel-debuginfo-6.2.0-6.32.1
    * libpcp-devel-6.2.0-6.32.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-16524.html
  * https://www.suse.com/security/cve/CVE-2026-16526.html
  * https://www.suse.com/security/cve/CVE-2026-16527.html
  * https://www.suse.com/security/cve/CVE-2026-16529.html
  * https://www.suse.com/security/cve/CVE-2026-16530.html
  * https://www.suse.com/security/cve/CVE-2026-16531.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1272922
  * https://bugzilla.suse.com/show_bug.cgi?id=1272923
  * https://bugzilla.suse.com/show_bug.cgi?id=1272924
  * https://bugzilla.suse.com/show_bug.cgi?id=1272925
  * https://bugzilla.suse.com/show_bug.cgi?id=1272926
  * https://bugzilla.suse.com/show_bug.cgi?id=1272927
  * https://bugzilla.suse.com/show_bug.cgi?id=1272928
  * https://bugzilla.suse.com/show_bug.cgi?id=1272930

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