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Fencer Vulns
medium 5.5

CVE-2022-48468 json

protobuf-c before 1.4.1 has an unsigned integer overflow in parse_required_member.

published 2023-04-13 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-51164

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits
0
none known

Summary

protobuf-c before 1.4.1 has an unsigned integer overflow in parse_required_member.

Patch / fix

  • protobuf-c_project protobuf-c 1.4.1
  • protobuf-c Debian 14, Debian 13, Debian 12 1.4.1-1
  • libsignal-protocol-c Debian 14, Debian 13, Debian 12 2.3.3-3

debian advisories DEBIAN-CVE-2022-48468

  • protobuf-c RHEL 8 1.3.0-8.el8
  • protobuf-c-compiler RHEL 8 1.3.0-8.el8
  • protobuf-c RHEL 9 1.3.3-13.el9
  • protobuf-c-compiler RHEL 9 1.3.3-13.el9
  • protobuf-c RHEL 8.8 EUS 1.3.0-8.el8_8
  • protobuf-c-compiler RHEL 8.8 EUS 1.3.0-8.el8_8
  • protobuf-c RHEL 8.6 EUS 1.3.0-8.el8_6
  • protobuf-c-compiler RHEL 8.6 EUS 1.3.0-8.el8_6

red hat advisories RHSA-2024:3812RHSA-2024:0406RHSA-2023:6944RHSA-2023:6621

  • protobuf-c SLES for SAP 15 SP3, SLES for SAP 15 SP2, SLES 15 SP3-LTSS +11 more 1.3.2-150200.3.3.1
  • protobuf-c SLES for SAP 15 SP1, SLES 15 SP1-LTSS, SLE High Performance Computing 15 SP1-LTSS 1.3.0-150000.3.3.1

suse advisories SUSE-SU-2023:2143-1SUSE-SU-2023:1979-1

  • libsignal-protocol-c openSUSE Tumbleweed 2.3.3-2.1

opensuse advisories openSUSE-SU-2026:10244-1

  • protobuf-c AlmaLinux 8 1.3.0-8.el8
  • protobuf-c-compiler AlmaLinux 8 1.3.0-8.el8
  • protobuf-c AlmaLinux 9 1.3.3-13.el9
  • protobuf-c-compiler AlmaLinux 9 1.3.3-13.el9

almalinux advisories ALSA-2023:6944ALSA-2023:6621

  • protobuf-c Rocky Linux 8 1.3.0-8.el8
  • protobuf-c Rocky Linux 9 1.3.3-13.el9

rocky linux advisories RLSA-2023:6944RLSA-2023:6621

  • protobuf-c CBL-Mariner 2.0 1.4.1-1

azure linux advisories AZL-26159

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-48468 updated cvss 6.2

protobuf-c: unsigned integer overflow in parse_required_member

  • Red Hat Enterprise Linux 7 protobuf-c, protobuf-c-compiler
    affected: no fix planned “Out of support scope”
  • Red Hat CodeReady Linux Builder (v. 9) protobuf-c-compiler 1.3.3-13.el9
    fixed: vendor fix RHSA-2023:6621
  • Red Hat Enterprise Linux AppStream (v. 8) protobuf-c 1.3.0-8.el8, protobuf-c-compiler 1.3.0-8.el8
    fixed: vendor fix RHSA-2023:6944
  • Red Hat Enterprise Linux AppStream EUS (v.8.6) protobuf-c 1.3.0-8.el8_6, protobuf-c-compiler 1.3.0-8.el8_6
    fixed: vendor fix RHSA-2024:0406
  • Red Hat Enterprise Linux AppStream EUS (v.8.8) protobuf-c 1.3.0-8.el8_8, protobuf-c-compiler 1.3.0-8.el8_8
    fixed: vendor fix RHSA-2024:3812
  • Red Hat Enterprise Linux BaseOS (v. 9) protobuf-c 1.3.3-13.el9
    fixed: vendor fix RHSA-2023:6621

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
21 mo ago

Exploit prediction

0.37% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.