Double free memory error in libgd2 - CVE-2017-6362

Vulnerability identifier: #VU12094

CSH Severity: Low

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2017-6362

CWE-ID: CWE-415

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to double free memory error in the gdImagePngPtr function. A remote attacker can submit vectors related to a palette with no colors and cause the service to crash.

libgd2
Debian Linux
Ubuntu
Slackware Linux
Fedora
gd (Alpine package)
libwmf
gd

Update to version 2.2.5.

gd (Alpine package) - update to 2.2.5-r0
libwmf - addressed in versions 0.2.8.4-53.fc25, 0.2.8.4-53.fc26, 0.2.8.4-53.fc27
gd - addressed in versions 2.2.5-1.fc25, 2.2.5-1.fc26, 2.2.5-1.fc27

• https://github.com/libgd/libgd/issues/381

• Ubuntu update for GD library
• Ubuntu update for GD library
• Debian update for libgd2
• Slackware Linux update for gd
• Slackware Linux update for libwmf
• Double free memory error in gd (Alpine package)
• Fedora 27 update for gd
• Fedora 25 update for gd
• Fedora 26 update for gd
• Fedora 26 update for libwmf
• Fedora 25 update for libwmf
• Fedora 27 update for libwmf