| Summary: | <app-emulation/qemu-3.1.0: seccomp: blacklist is not applied to all threads | ||
|---|---|---|---|
| Product: | Gentoo Security | Reporter: | Agostino Sarubbo <ago> |
| Component: | Vulnerabilities | Assignee: | Gentoo Security <security> |
| Status: | RESOLVED FIXED | ||
| Severity: | minor | CC: | tamiko, virtualization |
| Priority: | Normal | ||
| Version: | unspecified | ||
| Hardware: | All | ||
| OS: | Linux | ||
| URL: | http://www.openwall.com/lists/oss-security/2018/08/28/6 | ||
| Whiteboard: | B3 [noglsa cve] | ||
| Package list: | Runtime testing required: | --- | |
| Bug Depends on: | 673108 | ||
| Bug Blocks: | |||
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=40e4d2a3c32609b313962224ee9d2a96075734b8 commit 40e4d2a3c32609b313962224ee9d2a96075734b8 Author: Matthias Maier <tamiko@gentoo.org> AuthorDate: 2018-12-19 21:11:21 +0000 Commit: Matthias Maier <tamiko@gentoo.org> CommitDate: 2018-12-19 21:46:41 +0000 app-emulation/qemu: version bump to 3.1.0 - use RESTRICT=strip, bug #651422 - switch to tar.xz, bug #666726 - add missing use constraints, bug #664474 qemu_softmmu_targets_riscv32? ( fdt ) qemu_softmmu_targets_riscv64? ( fdt ) - 3.1.0 already contains patches for CVE-2018-15746 - applied patch for CVE-2018-20123 - disable bt subsystem entirely as a "workaround" for CVE-2018-19665. Upstream deprecated the subsystem in November and states that it had been dysfunctional for years with likely no users. Bug: https://bugs.gentoo.org/664740 Bug: https://bugs.gentoo.org/672346 Bug: https://bugs.gentoo.org/673108 Closes: https://bugs.gentoo.org/651422 Closes: https://bugs.gentoo.org/664474 Closes: https://bugs.gentoo.org/666726 Package-Manager: Portage-2.3.52, Repoman-2.3.12 Signed-off-by: Matthias Maier <tamiko@gentoo.org> app-emulation/qemu/Manifest | 1 + .../qemu/files/qemu-3.1.0-CVE-2018-20123.patch | 35 + app-emulation/qemu/files/qemu-binfmt.initd.head | 2 +- app-emulation/qemu/qemu-2.12.0-r3.ebuild | 2 +- app-emulation/qemu/qemu-2.12.1.ebuild | 2 +- app-emulation/qemu/qemu-3.1.0.ebuild | 821 +++++++++++++++++++++ 6 files changed, 860 insertions(+), 3 deletions(-) GLSA Vote: No Arches and Maintainer(s), Thank you for your work. |
From ${URL} : An issue was found in the way QEMU implements Seccomp sandboxing. In that, all QEMU threads are not bound by the sandbox. A guest user/process maybe be able to use this flaw to crash a guest resulting in DoS. Upstream patch: --------------- -> https://lists.gnu.org/archive/html/qemu-devel/2018-08/msg04892.html Reference: ---------- -> https://lists.gnu.org/archive/html/qemu-devel/2018-08/msg02289.html 'CVE-2018-15746' assigned via -> https://cveform.mitre.org/ @maintainer(s): after the bump, in case we need to stabilize the package, please let us know if it is ready for the stabilization or not.