Ubuntu Security Notice USN-2951-1
18th April, 2016
optipng vulnerabilities
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 15.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary
OptiPNG could be made to crash or run programs as your login if it opened a
specially crafted file.
Software description
- optipng
– advanced PNG (Portable Network Graphics) optimizer
Details
Gustavo Grieco discovered that OptiPNG incorrectly handled memory. A remote
attacker could use this issue with a specially crafted image file to cause
OptiPNG to crash, resulting in a denial of service. (CVE-2015-7801)
Gustavo Grieco discovered that OptiPNG incorrectly handled memory. A remote
attacker could use this issue with a specially crafted image file to cause
OptiPNG to crash, resulting in a denial of service. (CVE-2015-7802)
Hans Jerry Illikainen discovered that OptiPNG incorrectly handled memory. A
remote attacker could use this issue with a specially crafted image file to
cause OptiPNG to crash, resulting in a denial of service, or possibly
execute arbitrary code. (CVE-2016-2191)
Henri Salo discovered that OptiPNG incorrectly handled memory. A remote
attacker could use this issue with a specially crafted image file to cause
OptiPNG to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2016-3981)
Henri Salo discovered that OptiPNG incorrectly handled memory. A remote
attacker could use this issue with a specially crafted image file to cause
OptiPNG to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2016-3982)
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 15.10:
-
optipng
0.7.5-1ubuntu0.1
- Ubuntu 14.04 LTS:
-
optipng
0.6.4-1ubuntu0.14.04.1
- Ubuntu 12.04 LTS:
-
optipng
0.6.4-1ubuntu0.12.04.1
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.