CVE-2020-1751
First published: Fri Apr 17 2020(Updated: )
An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on PowerPC. Specifically, the backtrace function did not properly check the array bounds when storing the frame address, resulting in a denial of service or potential code execution. The highest threat from this vulnerability is to system availability.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GNU glibc | <2.31 | |
| Redhat Enterprise Linux | =8.0 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =19.10 | |
| debian/glibc | 2.31-13+deb11u11 2.31-13+deb11u10 2.36-9+deb12u9 2.36-9+deb12u7 2.40-4 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1751
- https://security.gentoo.org/glsa/202006-04
- https://security.netapp.com/advisory/ntap-20200430-0002/
- https://sourceware.org/bugzilla/show_bug.cgi?id=25423
- https://usn.ubuntu.com/4416-1/
- https://launchpad.net/bugs/cve/CVE-2020-1751
- https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=d93769405996dfc11d216ddbe415946617b5a494
- https://security-tracker.debian.org/tracker/CVE-2020-1751
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1751
- https://nvd.nist.gov/vuln/detail/CVE-2020-1751
- https://ubuntu.com/security/CVE-2020-1751
Frequently Asked Questions
What is CVE-2020-1751?
CVE-2020-1751 is an out-of-bounds write vulnerability found in glibc before version 2.31 when handling signal trampolines on PowerPC.
What is the severity of CVE-2020-1751?
CVE-2020-1751 has a severity level of high, with a severity value of 7.
Which software is affected by CVE-2020-1751?
The following software versions are affected: glibc 2.28-10+deb10u1 to 2.28-10+deb10u2, 2.31-13+deb11u6 to 2.31-13+deb11u7, 2.36-9+deb12u2 to 2.36-9+deb12u3, and 2.37-12. Also affected are GNU glibc versions up to 2.31, Redhat Enterprise Linux 8.0, Canonical Ubuntu Linux 16.04, 18.04, and 19.10 with specific versions.
How can I fix CVE-2020-1751 on Debian?
To fix CVE-2020-1751 on Debian, update glibc to versions 2.31-13+deb11u6, 2.31-13+deb11u7, 2.36-9+deb12u2, 2.36-9+deb12u3, or 2.37-12.
How can I fix CVE-2020-1751 on Ubuntu?
To fix CVE-2020-1751 on Ubuntu, update glibc to versions 2.27-3ubuntu1.2 for Ubuntu 16.04 (Xenial), 2.30-0ubuntu2.2 for Ubuntu 18.04 (Bionic), and 2.23-0ubuntu11.2 for Ubuntu 19.10 (Eoan).
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