DEBIAN-CVE-2020-7039

Advisory lineage Upstream: 1 Downstream: 4
Upstream
CVE-2020-7039
Published: 16 Jan 2020, 23:15
Last modified:28 Apr 2026, 20:21

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.6 MEDIUM
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

16 Jan 2020, 23:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:21
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.6CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Affected Systems

  • debian•libslirp

    < 4.1.0-2 | < 4.1.0-2 | < 4.1.0-2 | < 4.1.0-2

  • debian•qemu

    < 1:4.1-2 | < 1:4.1-2 | < 1:4.1-2 | < 1:4.1-2

  • debian•slirp

    < 1:1.0.17-10 | < 1:1.0.17-10 | < 1:1.0.17-10 | < 1:1.0.17-10

References (1)