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CVE-2020-7039

tcp_emu in tcp_subr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanages memory, as demonstrated by IRC DCC commands in EMU_IRC.

Impact

tcp_emu in tcp_subr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanages memory, as demonstrated by IRC DCC commands in EMU_IRC. This can cause a heap-based buffer overflow or other out-of-bounds access which can lead to a DoS or potential execute arbitrary code.

Affected products

VendorProductAffected versions
Libslirp ProjectLibslirp
Version 4.1.0
QemuQemu
Version 4.2.0
DebianDebian Linux
Versions 8.0, 9.0
OpensuseLeap
Version 15.1

Weakness classification

CWE-787

References