CVE-2015-6778

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-12-06 · updated 2026-06-17
Weakness: CWE-119

Description

The CJBig2_SymbolDict class in fxcodec/jbig2/JBig2_SymbolDict.cpp in PDFium, as used in Google Chrome before 47.0.2526.73, allows remote attackers to cause a denial of service (out-of-bounds memory access) or possibly have unspecified other impact via a PDF document containing crafted data with JBIG2 compression.

Affected products

Google Chrome: through 46.0.2490.86

References

http://googlechromereleases.blogspot.com/2015/12/stable-channel-update.html
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00016.html
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00017.html
http://www.debian.org/security/2015/dsa-3415
http://www.securityfocus.com/bid/78416
http://www.securitytracker.com/id/1034298
https://code.google.com/p/chromium/issues/detail?id=514891
https://codereview.chromium.org/1388203003
https://security.gentoo.org/glsa/201603-09
http://googlechromereleases.blogspot.com/2015/12/stable-channel-update.html
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00016.html
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00017.html

Get alerted when CVE-2015-6778 or the next vulnerability affects your stack