Double Free in libwebp - CVE-2016-9969

Vulnerability identifier: #VU35877

CSH Severity: Medium

CVSS v4: 7.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2016-9969

CWE-ID: CWE-415

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

In libwebp 0.5.1, there is a double free bug in libwebpmux.

libwebp
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Package Hub 15
libwebp6-32bit
libwebp6-32bit-debuginfo
libwebp6
libwebp6-debuginfo
libwebp-debugsource

Install update from vendor's website.

libwebp6-32bit - update to 0.5.0-150000.3.17.1
libwebp6-32bit-debuginfo - update to 0.5.0-150000.3.17.1
libwebp6 - update to 0.5.0-150000.3.17.1
libwebp6-debuginfo - update to 0.5.0-150000.3.17.1
libwebp-debugsource - update to 0.5.0-150000.3.17.1

• https://bugs.chromium.org/p/webp/issues/detail?id=322

• Double Free in developers.google.com libwebp
• SUSE update for libwebp