CVE-2020-15706: GRUB2 contains a race condition leading to a use-after-free vulnerability which can be triggered by redefining a function whilst the same function is already executing.
First published: Mon Jul 27 2020(Updated: )
"grub2 contains a use-after-free vulnerability which can be triggered by redefining a function whilst the same function is already executing."
Credit: security@ubuntu.com security@ubuntu.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/fwupdate | <0:12-6.el7_8 | 0:12-6.el7_8 |
| redhat/grub2 | <1:2.02-0.86.el7_8 | 1:2.02-0.86.el7_8 |
| redhat/shim | <0:15-7.el7_9 | 0:15-7.el7_9 |
| redhat/shim-signed | <0:15-7.el7_8 | 0:15-7.el7_8 |
| redhat/grub2 | <1:2.02-0.86.el7_2 | 1:2.02-0.86.el7_2 |
| redhat/shim | <0:15-8.el7 | 0:15-8.el7 |
| redhat/shim-signed | <0:15-8.el7_2 | 0:15-8.el7_2 |
| redhat/grub2 | <1:2.02-0.86.el7 | 1:2.02-0.86.el7 |
| redhat/shim-signed | <0:15-8.el7_3 | 0:15-8.el7_3 |
| redhat/fwupdate | <0:9-10.el7_4 | 0:9-10.el7_4 |
| redhat/grub2 | <1:2.02-0.86.el7_4 | 1:2.02-0.86.el7_4 |
| redhat/shim-signed | <0:15-8.el7_4 | 0:15-8.el7_4 |
| redhat/fwupdate | <0:12-6.el7_6 | 0:12-6.el7_6 |
| redhat/grub2 | <1:2.02-0.86.el7_6 | 1:2.02-0.86.el7_6 |
| redhat/shim-signed | <0:15-8.el7_6 | 0:15-8.el7_6 |
| redhat/fwupdate | <0:12-6.el7_7 | 0:12-6.el7_7 |
| redhat/grub2 | <1:2.02-0.86.el7_7 | 1:2.02-0.86.el7_7 |
| redhat/shim-signed | <0:15-8.el7_7 | 0:15-8.el7_7 |
| redhat/fwupd | <0:1.1.4-7.el8_2 | 0:1.1.4-7.el8_2 |
| redhat/grub2 | <1:2.02-87.el8_2 | 1:2.02-87.el8_2 |
| redhat/shim | <0:15-14.el8_2 | 0:15-14.el8_2 |
| redhat/shim-unsigned-x64 | <0:15-7.el8 | 0:15-7.el8 |
| redhat/fwupd | <0:1.1.4-2.el8_0 | 0:1.1.4-2.el8_0 |
| redhat/grub2 | <1:2.02-87.el8_0 | 1:2.02-87.el8_0 |
| redhat/shim | <0:15-14.el8_0 | 0:15-14.el8_0 |
| redhat/fwupd | <0:1.1.4-2.el8_1 | 0:1.1.4-2.el8_1 |
| redhat/grub2 | <1:2.02-87.el8_1 | 1:2.02-87.el8_1 |
| redhat/shim | <0:15-14.el8_1 | 0:15-14.el8_1 |
| redhat/grub | <2.06 | 2.06 |
| Gnu Grub2 | <=2.04 | |
| Redhat Enterprise Linux Atomic Host | ||
| Redhat Openshift Container Platform | =4.0 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =20.04 | |
| Debian Debian Linux | =10.0 | |
| Redhat Enterprise Linux | =7.0 | |
| Redhat Enterprise Linux | =8.0 | |
| SUSE SUSE Linux Enterprise Server | =11 | |
| SUSE SUSE Linux Enterprise Server | =12 | |
| SUSE SUSE Linux Enterprise Server | =15 | |
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | =1607 | |
| Microsoft Windows 10 | =1709 | |
| Microsoft Windows 10 | =1803 | |
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows 10 | =1903 | |
| Microsoft Windows 10 | =1909 | |
| Microsoft Windows 10 | =2004 | |
| Microsoft Windows 8.1 | ||
| Microsoft Windows RT 8.1 | ||
| Microsoft Windows Server 2012 | ||
| Microsoft Windows Server 2012 | =r2 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | =1903 | |
| Microsoft Windows Server 2016 | =1909 | |
| Microsoft Windows Server 2016 | =2004 | |
| Microsoft Windows Server 2019 | ||
| openSUSE Leap | =15.1 | |
| openSUSE Leap | =15.2 | |
| Canonical Ubuntu Linux | =16.04 | |
| debian/grub2 | 2.06-3~deb11u6 2.06-13+deb12u1 2.12-5 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://www.cve.org/CVERecord?id=CVE-2020-15706 https://nvd.nist.gov/vuln/detail/CVE-2020-15706
- https://bugzilla.redhat.com/show_bug.cgi?id=1861118
- https://access.redhat.com/errata/RHSA-2020:3217
- https://access.redhat.com/errata/RHSA-2020:3273
- https://access.redhat.com/errata/RHSA-2020:3276
- https://access.redhat.com/errata/RHSA-2020:3275
- https://access.redhat.com/errata/RHSA-2020:3271
- https://access.redhat.com/errata/RHSA-2020:3274
- https://access.redhat.com/errata/RHSA-2020:3216
- https://access.redhat.com/errata/RHSA-2020:3227
- https://access.redhat.com/errata/RHSA-2020:3223
- https://access.redhat.com/security/cve/cve-2020-15706
- https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011
- https://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/
- https://www.openwall.com/lists/oss-security/2020/07/29/3
- https://www.debian.org/security/2020/dsa-4735
- https://www.debian.org/security/2020-GRUB-UEFI-SecureBoot
- http://www.openwall.com/lists/oss-security/2020/07/29/3
- https://access.redhat.com/security/vulnerabilities/grub2bootloader
- https://www.suse.com/c/suse-addresses-grub2-secure-boot-issue/
- https://www.suse.com/support/kb/doc/?id=000019673
- http://ubuntu.com/security/notices/USN-4432-1
- https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass
- https://security.netapp.com/advisory/ntap-20200731-0008/
- https://usn.ubuntu.com/4432-1/
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html
- https://security.gentoo.org/glsa/202104-05
- https://launchpad.net/bugs/cve/CVE-2020-15706
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1863023
- https://git.savannah.gnu.org/gitweb/?p=grub.git;a=commit;h=426f57383d647406ae9c628c472059c27cd6e040
- https://security-tracker.debian.org/tracker/CVE-2020-15706
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15706
- https://nvd.nist.gov/vuln/detail/CVE-2020-15706
- https://ubuntu.com/security/CVE-2020-15706
Parent vulnerabilities
(Appears in the following advisories)
- collector/redhat-cve
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- agent/author
- agent/remedy
- agent/severity
- agent/description
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2020-15706
- agent/software-canonical-lookup
- agent/weakness
- agent/references
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup-request
- collector/nvd-index
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/title
- agent/last-modified-date
- agent/event
- agent/tags
- collector/usn-cve
- source/Ubuntu
- package-manager/redhat
- vendor/gnu
- canonical/gnu grub2
- version/gnu grub2/2.04
- vendor/redhat
- canonical/redhat enterprise linux atomic host
- canonical/redhat openshift container platform
- version/redhat openshift container platform/4.0
- vendor/canonical
- canonical/canonical ubuntu linux
- version/canonical ubuntu linux/14.04
- version/canonical ubuntu linux/16.04
- version/canonical ubuntu linux/18.04
- version/canonical ubuntu linux/20.04
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/10.0
- canonical/redhat enterprise linux
- version/redhat enterprise linux/7.0
- version/redhat enterprise linux/8.0
- vendor/suse
- canonical/suse suse linux enterprise server
- version/suse suse linux enterprise server/11
- version/suse suse linux enterprise server/12
- version/suse suse linux enterprise server/15
- vendor/microsoft
- canonical/microsoft windows 10
- version/microsoft windows 10/1607
- version/microsoft windows 10/1709
- version/microsoft windows 10/1803
- version/microsoft windows 10/1809
- version/microsoft windows 10/1903
- version/microsoft windows 10/1909
- version/microsoft windows 10/2004
- canonical/microsoft windows 8.1
- canonical/microsoft windows rt 8.1
- canonical/microsoft windows server 2012
- version/microsoft windows server 2012/r2
- canonical/microsoft windows server 2016
- version/microsoft windows server 2016/1903
- version/microsoft windows server 2016/1909
- version/microsoft windows server 2016/2004
- canonical/microsoft windows server 2019
- vendor/opensuse
- canonical/opensuse leap
- version/opensuse leap/15.1
- version/opensuse leap/15.2
- package-manager/debian