Description
The net_checksum_calculate function in net/checksum.c in QEMU allows local guest OS users to cause a denial of service (out-of-bounds heap read and crash) via the payload length in a crafted packet.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | qemu | 1:2.6+dfsg-1 | — |
| Debian 13 | qemu | 1:2.6+dfsg-1 | — |
| Debian 12 | qemu | 1:2.6+dfsg-1 | — |
| Debian 8 | qemu | 1:2.1+dfsg-12+deb8u8 | DLA-1599-1 |
| Debian 7 | qemu +1 | 1.1.2+dfsg-6+deb7u14 | DLA-574-1, DLA-573-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | qemu | 1:2.5+dfsg-5ubuntu10.1 | USN-2974-1 |
| Ubuntu 14.04 LTS | qemu | 2.0.0+dfsg-2ubuntu1.24 | USN-2974-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | qemu-img +3 | 10:1.5.3-126.el7_3.3 | RHSA-2017:0083 |
| RHEL 7 | qemu-img-rhev +3 | 10:2.6.0-28.el7_3.6 | RHSA-2017:0350 |
| RHEL 6 | qemu-img +6 | 2:0.12.1.2-2.491.el6_8.6 | RHSA-2017:0344, RHSA-2017:0309 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat OpenStack 9 | qemu-img-rhev +3 | 10:2.6.0-27.el7 | RHSA-2016:2671 |
| Red Hat OpenStack 8 | qemu-img-rhev +3 | 10:2.6.0-27.el7 | RHSA-2016:2670 |
| Red Hat OpenStack 7 | qemu-img-rhev +3 | 10:2.6.0-27.el7 | RHSA-2016:2704 |
| Red Hat OpenStack 6 | qemu-img-rhev +3 | 10:2.6.0-27.el7 | RHSA-2016:2705 |
| Red Hat OpenStack 5 | qemu-img-rhev +2 | 2:0.12.1.2-2.491.el6_8.7 | RHSA-2017:0334, RHSA-2016:2706 |
| Red Hat OpenStack 5 | qemu-kvm-tools-rhev +1 | 10:2.6.0-27.el7 | RHSA-2016:2706 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | qemu | 2.3.1-14.1 | SUSE-SU-2016:1703-1 |
| SLES 12 | qemu | 2.0.2-48.19.1 | SUSE-SU-2016:1560-1 |
| SLES 11 SP4 | kvm | 1.4.2-44.1 | SUSE-SU-2016:1785-1 |
| SLES 11 SP3 | kvm | 1.4.2-46.1 | SUSE-SU-2016:1698-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | qemu | 2.3.1-14.1 | SUSE-SU-2016:1703-1 |
| SLES for SAP 12 | qemu | 2.0.2-48.19.1 | SUSE-SU-2016:1560-1 |
| SLES for SAP 11 SP4 | kvm | 1.4.2-44.1 | SUSE-SU-2016:1785-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | qemu-img +3 | 10:1.5.3-126.el7_3.3 | ELSA-2017-0083 |
Advisories 19
- RHSA-2017:0350 Red Hat Security Advisory: qemu-kvm-rhev security and bug fix update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2017:0344 Red Hat Security Advisory: qemu-kvm-rhev security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2017:0334 Red Hat Security Advisory: qemu-kvm-rhev security update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2017:0309 Red Hat Security Advisory: qemu-kvm security and bug fix update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2017:0083 Red Hat Security Advisory: qemu-kvm security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2016:2706 Red Hat Security Advisory: qemu-kvm-rhev security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2016:2705 Red Hat Security Advisory: qemu-kvm-rhev security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2016:2704 Red Hat Security Advisory: qemu-kvm-rhev security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2016:2671 Red Hat Security Advisory: qemu-kvm-rhev security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2016:2670 Red Hat Security Advisory: qemu-kvm-rhev security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- DLA-574-1 qemu-kvm - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-573-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1599-1 qemu - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-2974-1 qemu, qemu-kvm vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2016:1703-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1785-1 Security update for kvm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1560-1 Security update for qemu SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1698-1 Security update for kvm SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2017-0083 Low: qemu-kvm security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jan 17, 2017
References
- RHSA-2017:0334 vendor-advisory
- RHSA-2016:2671 vendor-advisory
- RHSA-2017:0083 vendor-advisory
- [oss-security] 20160303 CVE request Qemu: net: out of bounds read in net_checksum_calculate mailing-list
- RHSA-2016:2706 vendor-advisory
- [oss-security] 20160306 Re: CVE request Qemu: net: out of bounds read in net_checksum_calculate mailing-list
- 84130 vdb-entry
- RHSA-2017:0350 vendor-advisory
- RHSA-2016:2705 vendor-advisory
- USN-2974-1 vendor-advisory
- RHSA-2017:0309 vendor-advisory
- RHSA-2016:2670 vendor-advisory
- RHSA-2017:0344 vendor-advisory
- http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=362786f14a753d8a5256ef97d7c10ed576d6572b
- [debian-lts-announce] 20181130 [SECURITY] [DLA 1599-1] qemu security update mailing-list
- RHSA-2016:2704 vendor-advisory