From https://www.openwall.com/lists/oss-security/2020/02/06/2 : Hello, A out-of-bounds heap buffer access issue was found in the SLiRP networking implementation of the QEMU emulator. It occurs in tcp_emu() routine while emulating IRC and other protocols due to unsafe usage of snprintf(3) function. A user/process could use this flaw to crash the Qemu process on the host resulting in DoS or potentially execute arbitrary code with privileges of the QEMU process on the host. Upstream patch: --------------- -> https://gitlab.freedesktop.org/slirp/libslirp/commit/68ccb8021a838066f0951d4b2817eb6b6f10a843 -> https://gitlab.freedesktop.org/slirp/libslirp/commit/68ccb8021a838066f0951d4b2817eb6b6f10a843 -> https://gitlab.freedesktop.org/slirp/libslirp/commit/30648c03b27fb8d9611b723184216cd3174b6775 This issue was reported by Laszlo Ersek(CC'd) and CVE assigned via -> https://cveform.mitre.org/ Thank you. -- Prasad J Pandit / Red Hat Product Security Team 8685 545E B54C 486B C6EB 271E E285 8B5A F050 DE8D
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=91b9bba62a5dd73e32bd43434bdaebf8914579ff commit 91b9bba62a5dd73e32bd43434bdaebf8914579ff Author: Matthias Maier <tamiko@gentoo.org> AuthorDate: 2020-03-13 18:21:03 +0000 Commit: Matthias Maier <tamiko@gentoo.org> CommitDate: 2020-03-13 18:22:10 +0000 app-emulation/qemu: update slirp to current master Bug: https://bugs.gentoo.org/709490 Package-Manager: Portage-2.3.93, Repoman-2.3.20 Signed-off-by: Matthias Maier <tamiko@gentoo.org> app-emulation/qemu/Manifest | 1 + app-emulation/qemu/qemu-4.2.0-r2.ebuild | 4 +++- 2 files changed, 4 insertions(+), 1 deletion(-)
New GLSA request filed.
amd64 stable
x86 stable. Maintainer(s), please cleanup.
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=df6de6a40066f332b6440ee6b02e68bcb85828bd commit df6de6a40066f332b6440ee6b02e68bcb85828bd Author: Sergei Trofimovich <slyfox@gentoo.org> AuthorDate: 2020-03-19 08:15:13 +0000 Commit: Sergei Trofimovich <slyfox@gentoo.org> CommitDate: 2020-03-19 08:15:47 +0000 app-emulation/qemu: drop <qemu-4.2.0-r2, bug #709490 Bug: https://bugs.gentoo.org/709490 Package-Manager: Portage-2.3.94, Repoman-2.3.21 Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org> app-emulation/qemu/qemu-4.2.0-r1.ebuild | 829 -------------------------------- 1 file changed, 829 deletions(-)
This issue was resolved and addressed in GLSA 202003-66 at https://security.gentoo.org/glsa/202003-66 by GLSA coordinator Thomas Deutschmann (whissi).
