CVE-2017-15670

Severity: critical (CVSS 9.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-10-20 · updated 2026-06-17
Weakness: CWE-119

Description

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.

Affected products

GNU C Library (glibc): through 2.26

References

http://www.securityfocus.com/bid/101521
https://access.redhat.com/errata/RHSA-2018:0805
https://access.redhat.com/errata/RHSA-2018:1879
https://sourceware.org/bugzilla/show_bug.cgi?id=22320
http://www.securityfocus.com/bid/101521
https://access.redhat.com/errata/RHSA-2018:0805
https://access.redhat.com/errata/RHSA-2018:1879
https://sourceware.org/bugzilla/show_bug.cgi?id=22320

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