Read the docs
TI-2017-12391 Aliases CVE-2017-16844GHSA-4f62-c8fw-44pp

Heap-based buffer overflow in the loadbuf function in formisc.c in formail in procmail…

Priority MEDIUM 56CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 4 fixed, 2 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.

Summary

Heap-based buffer overflow in the loadbuf function in formisc.c in formail in procmail 3.22 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted e-mail message because of a hardcoded realloc size, a different vulnerability than CVE-2014-3618.

Why it matters now

EPSS 0.12196 96th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 4 fixed, 2 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:procmail:procmail:3.22:*:*:*:*:*:*:*3.22VulnerableProcmail
  • cpe:2.3:a:procmail:procmail:3.22:*:*:*:*:*:*:* Versions 3.22 Vulnerable ·Procmail

Remediation

Red Hat 1 advisory

  • RHSA-2017:3269 Released 2017-11-28 · Red Hat rating Important
    procmail security update
    • Red Hat Enterprise Linux Client Optional (v. 7) procmail-3.22-36.el7_4.1
    • Red Hat Enterprise Linux Server (v. 7) procmail-3.22-36.el7_4.1
    • Red Hat Enterprise Linux Workstation (v. 7) procmail-3.22-36.el7_4.1
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) procmail-3.22-36.el7_4.1

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2017:3269
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2017:3269
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2017:3269
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)Fixed RHSA-2017:3269

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-16844
  2. 2026-10-03 Alias added: GHSA-4f62-c8fw-44pp

References

Advisory 3

Other 1

  • TI-2014-02939 Heap-based buffer overflow in formisc.c in formail in procmail 3.22 allows remote… CVSS 2.0HIGH 7.5
  • TI-1999-00434 Buffer overflow in procmail before version 3.12 allows remote or local attackers to… CVSS 2.0HIGH 7.5
  • TI-2001-00862 Race condition in signal handling of procmail 3.20 and earlier, when running setuid… CVSS 2.0MEDIUM 6.2
  • TI-1999-00469 A race condition in how procmail handles .procmailrc files allows a local user to read… CVSS 2.0LOW 1.2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences