Description
The ADDW macro in stdio-common/vfscanf.c in the GNU C Library (aka glibc or libc6) before 2.21 does not properly consider data-type size during memory allocation, which allows context-dependent attackers to cause a denial of service (buffer overflow) or possibly have unspecified other impact via a long line containing wide characters that are improperly handled in a wscanf call.
References (14)
Core 14
Core References
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201602-02
Vendor Advisory x_refsource_confirm
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2519-1
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/72428
Patch x_refsource_confirm
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commit%3Bh=5bd80bfe9ca0d955bfbbc002781bc7b01b6bcb06
Patch mailing-list
x_refsource_mlist
https://sourceware.org/ml/libc-alpha/2015-02/msg00119.html
Mailing List mailing-list
x_refsource_mlist
http://openwall.com/lists/oss-security/2015/02/04/1
Mailing List mailing-list
x_refsource_fulldisc
http://seclists.org/fulldisclosure/2019/Jun/18
Mailing List mailing-list
x_refsource_bugtraq
https://seclists.org/bugtraq/2019/Jun/14
Exploit, Third Party Advisory x_refsource_misc
http://packetstormsecurity.com/files/153278/WAGO-852-Industrial-Managed-Switch-Series-Code-Execution-Hardcoded-Credentials.html
Mailing List mailing-list
x_refsource_fulldisc
http://seclists.org/fulldisclosure/2019/Sep/7
Mailing List mailing-list
x_refsource_bugtraq
https://seclists.org/bugtraq/2019/Sep/7
Exploit, Third Party Advisory x_refsource_misc
http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html
Vendor Advisory x_refsource_confirm
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
Scores
EPSS
0.0306
EPSS Percentile
86.9%
Details
CWE
CWE-119
Status
published
Products (5)
canonical/ubuntu_linux
10.04
canonical/ubuntu_linux
12.04
canonical/ubuntu_linux
14.04
canonical/ubuntu_linux
14.10
gnu/glibc
< 2.20
Published
Apr 08, 2015
Tracked Since
Feb 18, 2026