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CVE-2015-8983

8.1 · HIGH

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 (applicat…

Published Mar 20, 2017CWE-190EPSS 3.87%

Overview

CVE-2015-8983 is a high-severity vulnerability. It was published on March 20, 2017 and has a CVSS 3.0 base score of 8.1 (HIGH).

This vulnerability has a CVSS 3.0 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.openwall.com/lists/oss-security/2017/02/14/9Refwww.securityfocus.com/bid/72740Refsourceware.org/bugzilla/show_bug.cgi?id=17269Refsourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=bdf1ff052a8e23d637f2c838fa5642d78fcedc33Refwww.sourceware.org/ml/libc-alpha/2015-08/msg00609.htmlRefwww.openwall.com/lists/oss-security/2017/02/14/9Refwww.securityfocus.com/bid/72740Refsourceware.org/bugzilla/show_bug.cgi?id=17269Refsourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=bdf1ff052a8e23d637f2c838fa5642d78fcedc33Refwww.sourceware.org/ml/libc-alpha/2015-08/msg00609.html

How CyberStrike helps

Frequently asked questions

What is CVE-2015-8983?

CVE-2015-8983 is a high-severity vulnerability. It was published on March 20, 2017 and has a CVSS 3.0 base score of 8.1 (HIGH).

How severe is CVE-2015-8983?

This vulnerability has a CVSS 3.0 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2015-8983?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2015-8983?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2015-8983 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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