Integer overflow in Libpng
CVE-2018-13785
In libpng 1.6.34, a wrong calculation of row_factor in the png_check_chunk_length function (pngrutil.c) may trigger an integer overflow and resultant divide-by-zero while processing a crafted PNG file, leading to a denial of service.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.044 (91.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.045 · newest: 0.044 · change: -0.001
Affected products
- Libpng — versions 1.6.34
- Oracle Jdk — versions 1.6.0, 1.7.0, 1.8.0
- Oracle Jre — versions 1.6.0, 1.7.0, 1.8.0
- Canonical Ubuntu Linux — versions 14.04, 16.04, 17.10
- Red Hat Enterprise Linux Desktop — versions 6.0, 7.0
- Red Hat Enterprise Linux Server — versions 6.0, 7.0
- Red Hat Enterprise Linux Workstation — versions 6.0, 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHSA-2018:3007 (vendor-advisory, Third Party Advisory)
- security.netapp.com/advisory/ntap-20181018-0001/ (Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:3779 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:3534 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:3003 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3712-1/ (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:3002 (vendor-advisory, Third Party Advisory)
- sourceforge.net/p/libpng/bugs/278/ (Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:3671 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:3852 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-13785?
- CVE-2018-13785 is a medium-severity vulnerability in Libpng, classified under Integer Overflow or Wraparound. CVSS score: 6.5/10. Published 2018-07-09.
- How severe is CVE-2018-13785?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2018-13785 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.