Date: Thu, 6 Feb 2020 18:33:10 +0530 (IST) From: P J P <ppandit@...hat.com> To: oss security list <oss-security@...ts.openwall.com> cc: Laszlo Ersek <lersek@...hat.com> Subject: CVE-2020-8608 QEMU: Slirp: potential OOB access due to unsafe snprintf() usages 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
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