CVE-2019-14378
ip_reass in ip_input.c in libslirp 4.0.0 has a heap-based buffer overflow via a large packet because it mishandles a case involving the first fragment.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 16.7%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
ip_reass in ip_input.c in libslirp 4.0.0 has a heap-based buffer overflow via a large packet because it mishandles a case involving the first fragment.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 16.66% probability · 97th percentile
- Public exploits
- 1 in Exploit-DB · first 20 August 2019
- CISA KEV
- Not listed
- Weakness
- CWE-755, CWE-787
- Affected
- libslirp project/libslirp
- Source
- cve@mitre.org
EPSS moved from 14.8% on 21 September 2026 to 16.7% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00008.html
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00034.html
- http://packetstormsecurity.com/files/154269/QEMU-Denial-Of-Service.html
- http://www.openwall.com/lists/oss-security/2019/08/01/2Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3179
- https://access.redhat.com/errata/RHSA-2019:3403
- https://access.redhat.com/errata/RHSA-2019:3494
- https://access.redhat.com/errata/RHSA-2019:3742
- https://access.redhat.com/errata/RHSA-2019:3787
- https://access.redhat.com/errata/RHSA-2019:3968
- https://access.redhat.com/errata/RHSA-2019:4344
- https://access.redhat.com/errata/RHSA-2020:0366
- https://access.redhat.com/errata/RHSA-2020:0775
- https://blog.bi0s.in/2019/08/24/Pwn/VM-Escape/2019-07-29-qemu-vm-escape-cve-2019-14378/
- https://gitlab.freedesktop.org/slirp/libslirp/commit/126c04acbabd7ad32c2b018fe10dfac2a3bc1210Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/09/msg00021.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UPLHB2AN663OXAWUQURF7J2X5LHD4VD3/
- https://news.ycombinator.com/item?id=20799010
- https://seclists.org/bugtraq/2019/Aug/41
- https://seclists.org/bugtraq/2019/Sep/3
- https://support.f5.com/csp/article/K25423748
- https://support.f5.com/csp/article/K25423748?utm_source=f5support&%3Butm_medium=RSS
- https://usn.ubuntu.com/4191-1/
- https://usn.ubuntu.com/4191-2/
- https://www.debian.org/security/2019/dsa-4506
- https://www.debian.org/security/2019/dsa-4512
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00008.html
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00034.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.