Buffer overflow in Procmail
CVE-2017-16844
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.125 (96.1th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.125 · newest: 0.125 · change: 0.000
Affected products
- Procmail — versions 3.22
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.debian.org/debian-lts-announce/2017/11/msg00019.html (mailing-list)
- access.redhat.com/errata/RHSA-2017:3269 (vendor-advisory, Third Party Advisory)
- bugs.debian.org/cgi-bin/bugreport.cgi (Third Party Advisory, Issue Tracking)
- www.debian.org/security/2017/dsa-4041 (vendor-advisory, Third Party Advisory)
- www.securitytracker.com/id/1039844 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2017-16844?
- CVE-2017-16844 is a critical-severity vulnerability in Procmail, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2017-11-16.
- How severe is CVE-2017-16844?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-16844 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.