CVE-2015-6818

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

The decode_ihdr_chunk function in libavcodec/pngdec.c in FFmpeg before 2.7.2 does not enforce uniqueness of the IHDR (aka image header) chunk in a PNG image, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via a crafted image with two or more of these chunks.

Metrics

CVSS 2.0 7.5/10AV:N/AC:L/Au:N/C:P/I:P/A:P

Weakness enumeration

CWE-17

Affected software

VendorProductVersions
n/an/an/a

References

Timeline

Published
Sep 6, 2015
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2015

CVE-2015-68197.5Multiple integer underflows in the ff_mjpeg_decode_frame function in libavcodec/mjpegdec.c in FFmpeg before 2.7.2 allow remote attackers to CVE-2015-68207.5The ff_sbr_apply function in libavcodec/aacsbr.c in FFmpeg before 2.7.2 does not check for a matching AAC frame syntax element before proceeCVE-2015-68217.5The ff_mpv_common_init function in libavcodec/mpegvideo.c in FFmpeg before 2.7.2 does not properly maintain the encoding context, which alloCVE-2015-68227.5The destroy_buffers function in libavcodec/sanm.c in FFmpeg before 2.7.2 does not properly maintain height and width values in the video conCVE-2015-68237.5The allocate_buffers function in libavcodec/alac.c in FFmpeg before 2.7.2 does not initialize certain context data, which allows remote attaCVE-2015-68247.5The sws_init_context function in libswscale/utils.c in FFmpeg before 2.7.2 does not initialize certain pixbuf data structures, which allows CVE-2015-68257.5The ff_frame_thread_init function in libavcodec/pthread_frame.c in FFmpeg before 2.7.2 mishandles certain memory-allocation failures, which CVE-2015-68267.5The ff_rv34_decode_init_thread_copy function in libavcodec/rv34.c in FFmpeg before 2.7.2 does not initialize certain structure members, whicCVE-2015-68276.8Cross-site request forgery (CSRF) vulnerability in Auto-Exchanger 5.1.0 allows remote attackers to hijack the authentication of users for reCVE-2015-68286.8The tweet_info function in class/__functions.php in the SecureMoz Security Audit plugin 1.0.5 and earlier for WordPress does not use an HTTPCVE-2015-68297.5Multiple SQL injection vulnerabilities in the getip function in wp-limit-login-attempts.php in the WP Limit Login Attempts plugin before 2.0CVE-2015-68305.0libraries/plugins/auth/AuthenticationCookie.class.php in phpMyAdmin 4.3.x before 4.3.13.2 and 4.4.x before 4.4.14.1 allows remote attackers
CVE-2015-6818: High severity, CVSS 7.5 | Vulnix