CVE-2015-8983

MEDIUM

Description

Integer overflow in the _IO_wstr_overflow function in libio/wstrops.c in the GNU C Library (aka glibc or libc6) before 2.22 allows context-dependent attackers to cause a denial of service (application crash) or possibly execute arbitrary code via vectors related to computing a size in bytes, which triggers a heap-based buffer overflow.

References

http://www.openwall.com/lists/oss-security/2017/02/14/9

http://www.securityfocus.com/bid/72740

https://sourceware.org/bugzilla/show_bug.cgi?id=17269

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=bdf1ff052a8e23d637f2c838fa5642d78fcedc33

https://www.sourceware.org/ml/libc-alpha/2015-08/msg00609.html

Details

Source: MITRE

Published: 2017-03-20

Updated: 2017-03-22

Type: CWE-190

Risk Information

CVSS v2.0

Base Score: 6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3.0

Base Score: 8.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 2.2

Severity: HIGH