CVE-2020-7039
slirp - security update
5.6
MEDIUM
CVSS 3.1
EPSS 0.83%
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.
How to fix CVE-2020-7039
To remediate CVE-2020-7039, upgrade the affected package to a fixed version below.
- —upgrade to 4.1.0-2 or later
- —upgrade to 1:4.1-2 or later
- —upgrade to 1:2.1+dfsg-12+deb8u13 or later
- —upgrade to 1:1.0.17-10 or later
- —upgrade to 1:1.0.17-7+deb8u1 or later
- —upgrade to 1:1.0.17-8+deb9u1 or later
Is CVE-2020-7039 being exploited?
Low — EPSS is 0.8%, meaning exploitation activity has not been observed at scale.
Affected packages (6)
- from 0, < 4.1.0-2
- from 0, < 1:4.1-2
- from 0, < 1:2.1+dfsg-12+deb8u13
- from 0, < 1:1.0.17-10
- from 0, < 1:1.0.17-7+deb8u1
- from 0, < 1:1.0.17-8+deb9u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.6 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L |