CVE-2017-15670: Buffer Overflow
First published: Fri Oct 20 2017(Updated: )
A buffer overflow vulnerability caused by an off-by-one error was found in glibc. It is possible that an attacker might use this to escalate his privileges or execute code. Upstream patch: <a href="http://git.savannah.gnu.org/cgit/gnulib.git/commit/?id=2d1bd71ec70a31b01d01b734faa66bb1ed28961f">http://git.savannah.gnu.org/cgit/gnulib.git/commit/?id=2d1bd71ec70a31b01d01b734faa66bb1ed28961f</a> Upstream issue: <a href="https://sourceware.org/bugzilla/show_bug.cgi?id=22320">https://sourceware.org/bugzilla/show_bug.cgi?id=22320</a>
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/glibc | <2.27 | 2.27 |
| debian/glibc | 2.31-13+deb11u11 2.31-13+deb11u10 2.36-9+deb12u8 2.36-9+deb12u7 2.40-3 | |
| GNU C Library (glibc) | <=2.26 |
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Reference Links
- 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://git.savannah.gnu.org/cgit/gnulib.git/commit/?id=2d1bd71ec70a31b01d01b734faa66bb1ed28961f
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1504807
- https://bugzilla.redhat.com/show_bug.cgi?id=1504804
- https://launchpad.net/bugs/cve/CVE-2017-15670
- https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=c369d66e5426a30e4725b100d5cd28e372754f90
- https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=a76376df7c07e577a9515c3faa5dbd50bda5da07
- https://security-tracker.debian.org/tracker/CVE-2017-15670
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15670
- https://nvd.nist.gov/vuln/detail/CVE-2017-15670
- https://ubuntu.com/security/CVE-2017-15670
Frequently Asked Questions
What is CVE-2017-15670?
CVE-2017-15670 is a vulnerability in the GNU C Library (glibc) before version 2.27 that leads to a heap-based buffer overflow.
What is the severity of CVE-2017-15670?
CVE-2017-15670 has a severity rating of 9.8, which is considered critical.
How does CVE-2017-15670 impact the GNU C Library?
CVE-2017-15670 affects the glob function in glob.c, which leads to a heap-based buffer overflow in glibc.
Which versions of glibc are affected by CVE-2017-15670?
Versions before 2.27 of the GNU C Library (glibc) are affected by CVE-2017-15670.
Is there a fix available for CVE-2017-15670?
Yes, the vulnerability can be remediated by updating glibc to version 2.27 or later.
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