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.
Does this matter?
Lower severity and a low EPSS score (4.38%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 4.38% probability · 91th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-190, CWE-369
- Affected
- libpng/libpng · canonical/ubuntu linux · oracle/jdk · oracle/jre · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux workstation
- Source
- cve@mitre.org
EPSS 4.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.htmlPatch, Vendor Advisory
- http://www.securityfocus.com/bid/105599Broken Link, Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041889Broken Link, Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:3000Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3001Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3002Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3003Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3007Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3008Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3533Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3534Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3671Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3672Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3779Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3852Third Party Advisory
- https://github.com/glennrp/libpng/commit/8a05766cb74af05c04c53e6c9d60c13fc4d59bf2Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201908-10Third Party Advisory
- https://security.netapp.com/advisory/ntap-20181018-0001/Third Party Advisory
- https://sourceforge.net/p/libpng/bugs/278/Third Party Advisory
- https://usn.ubuntu.com/3712-1/Third Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.htmlPatch, Vendor Advisory
- http://www.securityfocus.com/bid/105599Broken Link, Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041889Broken Link, Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:3000Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3001Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3002Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3003Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3007Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3008Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3533Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.