Integer overflow in GNU Glibc
CVE-2015-8983
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.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.039 (89.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.039 · newest: 0.039 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.openwall.com/lists/oss-security/2017/02/14/9 (mailing-list, Patch, Mailing List, Third Party Advisory)
- sourceware.org/bugzilla/show_bug.cgi (Patch, Issue Tracking)
- www.sourceware.org/ml/libc-alpha/2015-08/msg00609.html (mailing-list, Third Party Advisory)
- sourceware.org/git/gitweb.cgi
- www.securityfocus.com/bid/72740 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2015-8983?
- CVE-2015-8983 is a high-severity vulnerability in GNU Glibc, classified under Integer Overflow or Wraparound. CVSS score: 8.1/10. Published 2017-03-20.
- How severe is CVE-2015-8983?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2015-8983 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.