Buffer overflow in GNU Glibc
CVE-2017-15670
The GNU C Library (aka glibc or libc6) before 2.27 contains an off-by-one error leading to a heap-based buffer overflow in the glob function in glob.c, related to the processing of home directories using the ~ operator followed by a long string.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.030 (87.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.030 · newest: 0.030 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- sourceware.org/bugzilla/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- www.securityfocus.com/bid/101521 (vdb-entry)
- access.redhat.com/errata/RHSA-2018:1879 (vendor-advisory)
- access.redhat.com/errata/RHSA-2018:0805 (vendor-advisory)
Frequently asked questions
- What is CVE-2017-15670?
- CVE-2017-15670 is a critical-severity vulnerability in GNU Glibc, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2017-10-20.
- How severe is CVE-2017-15670?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-15670 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.