vulnerability
Red Hat OpenShift: CVE-2020-7039: QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu()
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:P/I:P/A:P) | Jan 16, 2020 | Dec 29, 2020 | Aug 11, 2025 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
Jan 16, 2020
Added
Dec 29, 2020
Modified
Aug 11, 2025
Description
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.
Solution
linuxrpm-upgrade-slirp4netns
References
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