CVE-2018-13785
Published: 09 July 2018
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.
Priority
Medium
CVSS 3 base score: 6.5
Status
| Package | Release | Status |
|---|---|---|
|
libpng Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Does not exist
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
(code not present)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(code not present)
|
|
|
libpng1.6 Launchpad, Ubuntu, Debian |
Upstream |
Released
(1.6.34-2)
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(1.6.34-1ubuntu0.18.04.1)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Not vulnerable
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
Patches: Other: https://github.com/glennrp/libpng/commit/8a05766cb74af05c04c53e6c9d60c13fc4d59bf2 |
||
Notes
| Author | Note |
|---|---|
| leosilva | could not reproduce with xenial version also xenial version hasn't the code affected. From the comments, it was tested in a xenial release, but bug was found using a different version from git/upstream. |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-13785
- https://sourceforge.net/p/libpng/bugs/278/
- https://ubuntu.com/security/notices/USN-3712-1
- NVD
- Launchpad
- Debian