CVE-2019-14378

Exp

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.

Published: 2019-07-29 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-14378 is rated High Exploit Risk (82/100): CVSS High severity, with high exploitation likelihood (EPSS 6.47%, 91th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2019-14378

EDB-ID Source Kind Published Link
47320 exploit_db edb 2019-08-20 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2019-14378

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-14 6.58% 6.47% -0.12%
2 2026-03-13 9.07% 6.58% -2.49%
3 2026-01-24 — 9.07% —

Full EPSS history (26 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-14378

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
6.5 2.0 MEDIUM
AV:N/AC:L/Au:S/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.0 6.4 [email protected]

Weakness enumeration for CVE-2019-14378

OS Trackers for CVE-2019-14378

vendor priority summary link
debian not yet assigned CVE-2019-14378 not yet assigned priority: Debian including 2 source packages (qemu, slirp4netns), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. https://security-tracker.debian.org/tracker/CVE-2019-14378
redhat high — https://access.redhat.com/security/cve/CVE-2019-14378
suse medium CVE-2019-14378 severity moderate: SUSE including 1055 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 1612 product×package rows across 77 product lines (HPE Helion OpenStack 8, SUSE CaaS Platform 3.0, … (77 product lines)): Fixed 1098, Known Not Affected 283, Known Affected 231. https://www.suse.com/security/cve/CVE-2019-14378/
ubuntu low CVE-2019-14378 low priority: Ubuntu including 13 source packages (android, basilisk2, …), 234 status rows across 18 suites (bionic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 80, ignored 57, needs-triage 43, not-affected 36, released 18. https://ubuntu.com/security/CVE-2019-14378

Affected software / configurations for CVE-2019-14378

Vendor Product Version Raw CPE
libslirp_project libslirp 4.0.0 cpe:2.3:a:libslirp_project:libslirp:4.0.0:*:*:*:*:*:*:*

References for CVE-2019-14378

URL Tags
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/2019/08/01/2 Third 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/126c04acbabd7ad32c2b018fe10dfac2a3bc1210 Patch 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&amp%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
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