| Name | CVE-2016-1714 |
| Description | The (1) fw_cfg_write and (2) fw_cfg_read functions in hw/nvram/fw_cfg.c in QEMU before 2.4, when built with the Firmware Configuration device emulation support, allow guest OS users with the CAP_SYS_RAWIO privilege to cause a denial of service (out-of-bounds read or write access and process crash) or possibly execute arbitrary code via an invalid current entry value in a firmware configuration. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-3469-1, DSA-3470-1, DSA-3471-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| qemu (PTS) | buster | 1:3.1+dfsg-8+deb10u8 | fixed |
| buster (security) | 1:3.1+dfsg-8+deb10u12 | fixed | |
| bullseye | 1:5.2+dfsg-11+deb11u3 | fixed | |
| bullseye (security) | 1:5.2+dfsg-11+deb11u2 | fixed | |
| bookworm | 1:7.2+dfsg-7+deb12u5 | fixed | |
| trixie | 1:8.2.1+ds-2 | fixed | |
| sid | 1:8.2.2+ds-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| qemu | source | squeeze | (unfixed) | end-of-life | ||
| qemu | source | wheezy | 1.1.2+dfsg-6a+deb7u12 | DSA-3469-1 | ||
| qemu | source | jessie | 1:2.1+dfsg-12+deb8u5a | DSA-3471-1 | ||
| qemu | source | (unstable) | 1:2.5+dfsg-4 | |||
| qemu-kvm | source | squeeze | (unfixed) | end-of-life | ||
| qemu-kvm | source | wheezy | 1.1.2+dfsg-6+deb7u12 | DSA-3470-1 | ||
| qemu-kvm | source | (unstable) | (unfixed) |
[squeeze] - qemu <end-of-life> (Not supported in Squeeze LTS)
[squeeze] - qemu-kvm <end-of-life> (Not supported in Squeeze LTS)
https://bugzilla.redhat.com/show_bug.cgi?id=1296060
Upstream fix: https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg00428.html
https://www.openwall.com/lists/oss-security/2016/01/11/7
fw_cfg support for guest-side data writes removed in 2.4 (1:2.4+dfsg-1a)
http://git.qemu.org/?p=qemu.git;a=commit;h=023e3148567ac898c7258138f8e86c3c2bb40d07 (v2.4.0-rc0)
fw_cfg_read removed in: http://git.qemu.org/?p=qemu.git;a=commit;h=6c8d56a2e95712a6206a2671d2b04b2e59cabc0b