Unrated severityNVD Advisory· Published May 26, 2021· Updated Aug 3, 2024
CVE-2021-3527
CVE-2021-3527
Description
A flaw was found in the USB redirector device (usb-redir) of QEMU. Small USB packets are combined into a single, large transfer request, to reduce the overhead and improve performance. The combined size of the bulk transfer is used to dynamically allocate a variable length array (VLA) on the stack without proper validation. Since the total size is not bounded, a malicious guest could use this flaw to influence the array length and cause the QEMU process to perform an excessive allocation on the stack, resulting in a denial of service.
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Affected products
30- osv-coords28 versionspkg:rpm/opensuse/qemu&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/qemu&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/qemu&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/qemu-linux-user&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/qemu-testsuite&distro=openSUSE%20Leap%2015.2pkg:rpm/suse/qemu&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Micro%205.0pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP3pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/qemu&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/qemu&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSS
< 4.2.1-lp152.9.20.1+ 27 more
- (no CPE)range: < 4.2.1-lp152.9.20.1
- (no CPE)range: < 4.2.1-11.28.1
- (no CPE)range: < 6.1.0-32.1
- (no CPE)range: < 4.2.1-lp152.9.20.1
- (no CPE)range: < 4.2.1-lp152.9.20.1
- (no CPE)range: < 3.1.1.1-80.40.1
- (no CPE)range: < 3.1.1.1-80.40.1
- (no CPE)range: < 3.1.1.1-80.40.1
- (no CPE)range: < 2.11.2-70.59.1
- (no CPE)range: < 2.11.2-70.59.1
- (no CPE)range: < 4.2.1-11.28.1
- (no CPE)range: < 4.2.1-11.28.1
- (no CPE)range: < 5.2.0-103.2
- (no CPE)range: < 4.2.1-11.28.1
- (no CPE)range: < 5.2.0-103.2
- (no CPE)range: < 2.6.2-41.73.1
- (no CPE)range: < 2.11.2-5.40.2
- (no CPE)range: < 3.1.1.1-57.2
- (no CPE)range: < 3.1.1.1-80.40.1
- (no CPE)range: < 3.1.1.1-80.40.1
- (no CPE)range: < 2.11.2-70.59.1
- (no CPE)range: < 2.11.2-5.40.2
- (no CPE)range: < 3.1.1.1-57.2
- (no CPE)range: < 2.11.2-70.59.1
- (no CPE)range: < 3.1.1.1-80.40.1
- (no CPE)range: < 2.11.2-5.40.2
- (no CPE)range: < 2.11.2-5.40.2
- (no CPE)range: < 4.4.4_50-61.67.1
Patches
Vulnerability mechanics
References
8- security.gentoo.org/glsa/202208-27mitrevendor-advisoryx_refsource_GENTOO
- bugzilla.redhat.com/show_bug.cgimitrex_refsource_MISC
- gitlab.com/qemu-project/qemu/-/commit/05a40b172e4d691371534828078be47e7fff524cmitrex_refsource_MISC
- gitlab.com/qemu-project/qemu/-/commit/7ec54f9eb62b5d177e30eb8b1cad795a5f8d8986mitrex_refsource_MISC
- lists.debian.org/debian-lts-announce/2021/09/msg00000.htmlmitremailing-listx_refsource_MLIST
- lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlmitremailing-listx_refsource_MLIST
- security.netapp.com/advisory/ntap-20210708-0008/mitrex_refsource_CONFIRM
- www.openwall.com/lists/oss-security/2021/05/05/5mitrex_refsource_MISC
News mentions
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