Description
protobuf-c before 1.4.1 has an unsigned integer overflow in parse_required_member.
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 | libsignal-protocol-c | 2.3.3-3 | — |
| Debian 14 | protobuf-c | 1.4.1-1 | — |
| Debian 13 | libsignal-protocol-c | 2.3.3-3 | — |
| Debian 13 | protobuf-c | 1.4.1-1 | — |
| Debian 12 | libsignal-protocol-c | 2.3.3-3 | — |
| Debian 12 | protobuf-c | 1.4.1-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | protobuf-c | No fix yet | — |
| Ubuntu 20.04 LTS | protobuf-c | No fix yet | — |
| Ubuntu 18.04 LTS | protobuf-c | No fix yet | — |
| Ubuntu 16.04 LTS | protobuf-c | No fix yet | — |
| Ubuntu 14.04 LTS | protobuf-c | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | protobuf-c +2 | 1.3.3-13.el9 | RHSA-2023:6621 |
| RHEL 8 | protobuf-c +2 | 1.3.0-8.el8 | RHSA-2023:6944 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8.8 EUS | protobuf-c +2 | 1.3.0-8.el8_8 | RHSA-2024:3812 |
| RHEL 8.6 EUS | protobuf-c +2 | 1.3.0-8.el8_6 | RHSA-2024:0406 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | protobuf-c +2 | 1.3.3-13.el9 | ALSA-2023:6621 |
| AlmaLinux 8 | protobuf-c +2 | 1.3.0-8.el8 | ALSA-2023:6944 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | protobuf-c | 1.3.3-13.el9 | RLSA-2023:6621 |
| Rocky Linux 8 | protobuf-c | 1.3.0-8.el8 | RLSA-2023:6944 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | protobuf-c | 1.3.2-150200.3.3.1 | SUSE-SU-2023:2143-1 |
| SLES 15 SP3 | protobuf-c | 1.3.2-150200.3.3.1 | SUSE-SU-2023:2143-1 |
| SLES 15 SP2 | protobuf-c | 1.3.2-150200.3.3.1 | SUSE-SU-2023:2143-1 |
| SLES 15 SP1 | protobuf-c | 1.3.0-150000.3.3.1 | SUSE-SU-2023:1979-1 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP3 | protobuf-c | 1.3.2-150200.3.3.1 | SUSE-SU-2023:2143-1 |
| SLES for SAP 15 SP2 | protobuf-c | 1.3.2-150200.3.3.1 | SUSE-SU-2023:2143-1 |
| SLES for SAP 15 SP1 | protobuf-c | 1.3.0-150000.3.3.1 | SUSE-SU-2023:1979-1 |
| SLE Real Time 15 SP3 | protobuf-c | 1.3.2-150200.3.3.1 | SUSE-SU-2023:2143-1 |
| SLE HPC 15 SP3 | protobuf-c | 1.3.2-150200.3.3.1 | SUSE-SU-2023:2143-1 |
| SLE HPC 15 SP2 | protobuf-c | 1.3.2-150200.3.3.1 | SUSE-SU-2023:2143-1 |
| SLE HPC 15 SP1 | protobuf-c | 1.3.0-150000.3.3.1 | SUSE-SU-2023:1979-1 |
| SUSE Manager Server 4.2 | protobuf-c | 1.3.2-150200.3.3.1 | SUSE-SU-2023:2143-1 |
| SUSE Manager Proxy 4.2 | protobuf-c | 1.3.2-150200.3.3.1 | SUSE-SU-2023:2143-1 |
| SUSE Enterprise Storage 7.1 | protobuf-c | 1.3.2-150200.3.3.1 | SUSE-SU-2023:2143-1 |
| SUSE Enterprise Storage 7 | protobuf-c | 1.3.2-150200.3.3.1 | SUSE-SU-2023:2143-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libsignal-protocol-c | 2.3.3-2.1 | openSUSE-SU-2026:10244-1 |
| openSUSE Leap 15.4 | protobuf-c | 1.3.2-150200.3.3.1 | SUSE-SU-2023:2143-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | protobuf-c +2 | 1.0.2-3.amzn2.0.2 | ALAS2-2023-2142 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | protobuf-c | 1.4.1-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | protobuf-c +2 | 1.3.3-13.el9 | ELSA-2023-6621 |
| Oracle Linux 8 | protobuf-c +2 | 1.3.0-8.el8 | ELSA-2023-6944 |
Advisories 17
- WID-SEC-2023-2853 Red Hat Enterprise Linux: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 8, 2026
- RLSA-2023:6944 Moderate: protobuf-c security update Rocky Linux Security Advisories · Nov 8, 2026
- ALSA-2023:6621 Moderate: protobuf-c security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:6944 Moderate: protobuf-c security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2023:6621 Red Hat Security Advisory: protobuf-c security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RLSA-2023:6621 Moderate: protobuf-c security update Rocky Linux Security Advisories · Jun 25, 2026
- openSUSE-SU-2026:10244-1 libsignal-protocol-c-devel-2.3.3-2.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- RHSA-2024:0406 Red Hat Security Advisory: protobuf-c security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:3812 Red Hat Security Advisory: protobuf-c security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- SUSE-SU-2023:1979-1 Security update for protobuf-c SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2143-1 Security update for protobuf-c SUSE / openSUSE Security Updates · Feb 4, 2026
- RHSA-2023:6944 Red Hat Security Advisory: protobuf-c security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- WID-SEC-2024-1307 Red Hat OpenShift Service Mesh Containers: Mehrere Schwachstellen BSI CERT-Bund (WID) · Feb 5, 2025
- WID-SEC-2024-0521 IBM MQ: Mehrere Schwachstellen BSI CERT-Bund (WID) · Dec 15, 2024
- ELSA-2023-6944 Moderate: protobuf-c security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 17, 2023
- ELSA-2023-6621 Moderate: protobuf-c security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 11, 2023
- ALAS2-2023-2142 Moderate: protobuf-c security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jul 19, 2023
References
- https://github.com/protobuf-c/protobuf-c/issues/499
- https://github.com/protobuf-c/protobuf-c/pull/513
- https://github.com/protobuf-c/protobuf-c/commit/ec3d900001a13ccdaa8aef996b34c61159c76217
- https://github.com/protobuf-c/protobuf-c/releases/tag/v1.4.1
- FEDORA-2023-4e094d5297 vendor-advisory
- FEDORA-2023-6cfe134db6 vendor-advisory
- FEDORA-2023-8b0938312e vendor-advisory