CVE-2015-8983

Name: CVE-2015-8983
Creator: NVD / NIST
Published: 2017-03-20T16:59:01.453+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.87%

Last modified Jun 17, 2026

CVE-2015-8983 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 3.87% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

3.87%

88.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-190

Affected Software

Vendor	Product	Versions
Gnu	Glibc	<= 2.21

References

http://www.openwall.com/lists/oss-security/2017/02/14/9Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/72740Third Party Advisory, VDB Entry
https://sourceware.org/bugzilla/show_bug.cgi?id=17269Issue Tracking, Patch
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=bdf1ff052a8e23d637f2c838fa5642d78fcedc33
https://www.sourceware.org/ml/libc-alpha/2015-08/msg00609.htmlThird Party Advisory
http://www.openwall.com/lists/oss-security/2017/02/14/9Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/72740Third Party Advisory, VDB Entry
https://sourceware.org/bugzilla/show_bug.cgi?id=17269Issue Tracking, Patch
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=bdf1ff052a8e23d637f2c838fa5642d78fcedc33
https://www.sourceware.org/ml/libc-alpha/2015-08/msg00609.htmlThird Party Advisory

Timeline

Published: Mar 20, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-8983?

How severe is CVE-2015-8983?

Severity scoring for CVE-2015-8983 is pending analysis. The EPSS model estimates a 3.87% probability of exploitation in the next 30 days.

How do I fix CVE-2015-8983?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-8983?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST