Medium severity6.7NVD Advisory· Published Jul 30, 2020· Updated Jun 17, 2026
CVE-2020-14309
CVE-2020-14309
Description
There's an issue with grub2 in all versions before 2.06 when handling squashfs filesystems containing a symbolic link with name length of UINT32 bytes in size. The name size leads to an arithmetic overflow leading to a zero-size allocation further causing a heap-based buffer overflow with attacker controlled data.
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Affected products
30- grub2/grub2description
- osv-coords28 versionspkg:rpm/opensuse/grub2&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/grub2&distro=openSUSE%20Leap%2015.2pkg:rpm/suse/grub2&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/grub2&distro=SUSE%20Enterprise%20Storage%205pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP1pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/grub2&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/grub2&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/grub2&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/grub2&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/grub2&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209
< 2.02-lp151.21.21.4+ 27 more
- (no CPE)range: < 2.02-lp151.21.21.4
- (no CPE)range: < 2.04-lp152.7.3.4
- (no CPE)range: < 2.02-4.53.1
- (no CPE)range: < 2.02-4.53.1
- (no CPE)range: < 2.02-19.48.1
- (no CPE)range: < 2.02-19.48.1
- (no CPE)range: < 2.02-26.25.1
- (no CPE)range: < 2.04-9.7.1
- (no CPE)range: < 2.02-26.25.1
- (no CPE)range: < 2.04-9.7.1
- (no CPE)range: < 2.00-0.66.15.1
- (no CPE)range: < 2.02~beta2-115.49.1
- (no CPE)range: < 2.02~beta2-115.49.1
- (no CPE)range: < 2.02-4.53.1
- (no CPE)range: < 2.02-4.53.1
- (no CPE)range: < 2.02-12.31.1
- (no CPE)range: < 2.02-12.31.1
- (no CPE)range: < 2.02-19.48.1
- (no CPE)range: < 2.02~beta2-115.49.1
- (no CPE)range: < 2.02-4.53.1
- (no CPE)range: < 2.02-12.31.1
- (no CPE)range: < 2.02-12.31.1
- (no CPE)range: < 2.02-19.48.1
- (no CPE)range: < 2.02~beta2-115.49.1
- (no CPE)range: < 2.02-4.53.1
- (no CPE)range: < 2.02-12.31.1
- (no CPE)range: < 2.02-4.53.1
- (no CPE)range: < 2.02-12.31.1
Patches
Vulnerability mechanics
References
6- lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.htmlnvdMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.htmlnvdMailing ListThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
- security.gentoo.org/glsa/202104-05nvdThird Party Advisory
- security.netapp.com/advisory/ntap-20200731-0008/nvdThird Party Advisory
- usn.ubuntu.com/4432-1/nvdThird Party Advisory
News mentions
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