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.
CVE-2019-14378
This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 16.7%, top 3% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 8.8
- EG Score
- 8.8(medium)
- EG Risk
- 60(Track)EG Risk 60/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity88% × 45%Exploitation40% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 17%
- EPSS %ILE
- 97%
- KEV
- Not listed
Published
July 29, 2019
Last Modified
November 21, 2024
Advisory Details (7)
Auto-updated Aug 17, 2026Affected: Red Hat Enterprise Linux 8.
https://access.redhat.com/errata/RHSA-2019:3494Affected: Red Hat Enterprise Linux 8.
https://access.redhat.com/errata/RHSA-2019:3403Affected: Red Hat Enterprise Linux 7 and Red Hat Virtualization Engine 4.3.
https://access.redhat.com/errata/RHSA-2019:3179oss-security - CVE-2019-14378 QEMU: slirp: heap buffer overflow during packet reassembly
http://www.openwall.com/lists/oss-security/2019/08/01/2Vendor Advisories for CVE-2019-14378(16)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2020:2342Red Hat Product SecurityHigh
Red Hat Security Advisory: qemu-kvm-rhev bug fix update
- RHSA-2020:2126Red Hat Product SecurityHigh
Red Hat Security Advisory: qemu-kvm security update
- RHSA-2020:2065Red Hat Product SecurityHigh
Red Hat Security Advisory: qemu-kvm-ma security update
- RHSA-2020:1216Red Hat Product SecurityHigh
Red Hat Security Advisory: qemu-kvm-rhev security, bug fix, and enhancement update
- RHSA-2020:0889Red Hat Product SecurityHigh
Red Hat Security Advisory: slirp4netns security update
- RHSA-2020:0775Red Hat Product SecurityHigh
Red Hat Security Advisory: qemu-kvm security update
- RHSA-2020:0366Red Hat Product SecurityHigh
Red Hat Security Advisory: qemu-kvm security, bug fix, and enhancement update
- RHSA-2019:4344Red Hat Product SecurityHigh
Red Hat Security Advisory: qemu-kvm-rhev security update
- +8 more
Patch Availability(15)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | qemu-utils (1:2.5+dfsg-5ubuntu10.42) @ xenial | 2026-05-27 | ubuntu |
| ubuntu | qemu-system-mips (2.0.0+dfsg-2ubuntu1.47) @ trusty | 2026-05-27 | ubuntu |
| redhat | qemu-kvm-rhev-10:2.12.0-18.el7_6.11 | 2020-06-01 | redhat |
| redhat | qemu-kvm-10:1.5.3-160.el7_6.6 | 2020-05-13 | redhat |
| redhat | qemu-kvm-ma-10:2.12.0-18.el7_6.6 | 2020-05-11 | redhat |
| redhat | qemu-kvm-rhev-10:2.12.0-44.el7 | 2020-03-31 | redhat |
| redhat | slirp4netns-0:0.3.0-8.el7_7 | 2020-03-17 | redhat |
| redhat | qemu-kvm-2:0.12.1.2-2.506.el6_10.6 | 2020-03-10 | redhat |
| redhat | qemu-kvm-10:1.5.3-167.el7_7.4 | 2020-02-04 | redhat |
| redhat | qemu-kvm-rhev-10:2.12.0-33.el7_7.4 | 2019-12-19 | redhat |
| redhat | qemu-kvm-ma-10:2.12.0-33.el7_7.1 | 2019-11-26 | redhat |
| redhat | virt-devel:8.1-8010020190927171011.cdc1202b | 2019-11-06 | redhat |
| redhat | container-tools:1.0-8010020190927091243.4985cc55 | 2019-11-05 | redhat |
| redhat | container-tools:rhel8-8010020190927090915.4985cc55 | 2019-11-05 | redhat |
| redhat | virt:rhel-8000020190828150510.f8e95b4e | 2019-09-12 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(11 across 7 ecosystems)
Debian:11(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| qemu | — | 1:4.1-1 | — |
| slirp4netns | — | 0.3.2-1 | — |
Debian:12(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| qemu | — | 1:4.1-1 | — |
| slirp4netns | — | 0.3.2-1 | — |
Debian:13(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| qemu | — | 1:4.1-1 | — |
| slirp4netns | — | 0.3.2-1 | — |
Debian:14(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| qemu | — | 1:4.1-1 | — |
| slirp4netns | — | 0.3.2-1 | — |
Debian:10(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| qemu | 1:3.1+dfsg-8, 1:3.1+dfsg-8~deb10u1 | 1:3.1+dfsg-8+deb10u2 | — |
Debian:8(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| qemu | 1:2.1+dfsg-11 ... 1:2.1+dfsg-12~bpo70+1 (17 versions) | 1:2.1+dfsg-12+deb8u12 | — |
Debian:9(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| qemu | 1:2.8+dfsg-6 ... 1:2.8+dfsg-6+deb9u7 (8 versions) | 1:2.8+dfsg-6+deb9u8 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(2)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 5× in last 7d / 26× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 115 total refreshes for this CVE.
- 2026-08-25 13:45 UTCEPSS rescore
- 2026-08-21 23:45 UTCEPSS rescore
- 2026-08-21 18:14 UTCOSV refresh
- 2026-08-20 22:51 UTCEPSS rescore
- 2026-08-19 17:00 UTCEPSS rescore
- 2026-08-18 13:44 UTCEPSS rescore
- 2026-08-17 13:43 UTCEPSS rescore
- 2026-08-16 14:52 UTCEPSS rescore
- 2026-08-16 02:10 UTCEPSS rescore
- 2026-08-15 01:26 UTCEPSS rescore
- 2026-08-13 21:56 UTCEPSS rescore
- 2026-08-12 13:47 UTCEPSS rescore
- 2026-08-09 13:43 UTCEPSS rescore
- 2026-08-08 16:33 UTCEPSS rescore
- 2026-08-07 16:23 UTCEPSS rescore
- 2026-08-06 13:43 UTCEPSS rescore
- 2026-08-06 02:24 UTCOSV refresh
- 2026-08-05 19:13 UTCEPSS rescore
- 2026-08-04 15:05 UTCEPSS rescore
- 2026-08-04 10:33 UTCEPSS rescore
- 2026-08-03 10:31 UTCEPSS rescore
- 2026-08-02 02:23 UTCEPSS rescore
- 2026-08-01 04:12 UTCEPSS rescore
- 2026-07-30 16:24 UTCEPSS rescore
- 2026-07-30 01:27 UTCEPSS rescore
Show 75 moreShow fewer
- 2026-07-28 15:32 UTCEPSS rescore
- 2026-07-26 14:51 UTCEPSS rescore
- 2026-07-25 14:14 UTCEPSS rescore
- 2026-07-24 14:14 UTCEPSS rescore
- 2026-07-24 14:14 UTCEPSS rescore
- 2026-07-23 14:15 UTCEPSS rescore
- 2026-07-23 01:40 UTCEG score recompute
- 2026-07-22 22:20 UTCEG score recompute
- 2026-07-22 14:05 UTCEPSS rescore
- 2026-07-21 15:22 UTCEPSS rescore
- 2026-07-21 15:22 UTCEPSS rescore
- 2026-07-20 17:04 UTCEPSS rescore
- 2026-07-20 11:34 UTCOSV refresh
- 2026-07-19 14:28 UTCEPSS rescore
- 2026-07-19 14:28 UTCEPSS rescore
- 2026-07-19 02:26 UTCEPSS rescore
- 2026-07-19 02:26 UTCEPSS rescore
- 2026-07-18 10:01 UTCEPSS rescore
- 2026-07-16 16:59 UTCEPSS rescore
- 2026-07-16 16:59 UTCEPSS rescore
- 2026-07-15 16:55 UTCEPSS rescore
- 2026-07-13 22:27 UTCEPSS rescore
- 2026-07-12 05:43 UTCEPSS rescore
- 2026-07-11 08:24 UTCEPSS rescore
- 2026-07-09 19:06 UTCEPSS rescore
- 2026-07-08 15:11 UTCEPSS rescore
- 2026-07-06 16:25 UTCEPSS rescore
- 2026-07-05 02:27 UTCEPSS rescore
- 2026-07-03 06:56 UTCOSV refresh
- 2026-07-02 16:56 UTCEPSS rescore
- 2026-07-01 15:03 UTCEPSS rescore
- 2026-07-01 15:03 UTCEPSS rescore
- 2026-06-30 23:20 UTCEPSS rescore
- 2026-06-30 23:20 UTCEPSS rescore
- 2026-06-29 14:03 UTCEPSS rescore
- 2026-06-28 14:04 UTCEPSS rescore
- 2026-06-28 04:54 UTCEPSS rescore
- 2026-06-28 04:53 UTCEPSS rescore
- 2026-06-27 03:06 UTCEPSS rescore
- 2026-06-27 03:06 UTCEPSS rescore
- 2026-06-25 13:47 UTCEPSS rescore
- 2026-06-25 13:47 UTCEPSS rescore
- 2026-06-24 14:03 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-22 14:23 UTCEPSS rescore
- 2026-06-22 14:23 UTCEPSS rescore
- 2026-06-21 14:54 UTCEPSS rescore
- 2026-06-21 14:54 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-18 17:50 UTCEPSS rescore
- 2026-06-17 17:50 UTCEPSS rescore
- 2026-06-16 17:50 UTCEPSS rescore
- 2026-06-15 17:45 UTCEPSS rescore
- 2026-06-14 23:15 UTCEPSS rescore
- 2026-06-14 23:15 UTCEPSS rescore
- 2026-06-14 21:43 UTCOSV refresh
- 2026-06-13 22:58 UTCEPSS rescore
- 2026-06-12 23:09 UTCEPSS rescore
- 2026-06-11 13:58 UTCEPSS rescore
- 2026-06-11 13:58 UTCEPSS rescore
- 2026-06-10 22:16 UTCEPSS rescore
- 2026-06-10 13:19 UTCEPSS rescore
- 2026-06-08 14:15 UTCEPSS rescore
- 2026-06-08 14:14 UTCEPSS rescore
- 2026-06-07 15:23 UTCEPSS rescore
- 2026-06-07 15:22 UTCEPSS rescore
- 2026-06-05 22:45 UTCEPSS rescore
- 2026-06-05 22:45 UTCEPSS rescore
- 2026-06-05 06:08 UTCEPSS rescore
- 2026-06-05 06:08 UTCEPSS rescore
- 2026-06-04 13:10 UTCEPSS rescore
- 2026-06-04 13:10 UTCEPSS rescore
Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-47320First seen Aug 20, 2019
QEMU - Denial of Service
Open source ↗
Related CVEs(same vendor + same CWE)
Same vendor
10 shownredhat
- CVE-2001-0825EG 10.0HIGH
- CVE-2001-1009EG 10.0EPSS p93HIGH
- CVE-2001-0554EG 10.0EPSS p98HIGH
- CVE-2001-1162EG 10.0EPSS p96HIGH
- CVE-2001-0414EG 10.0EPSS p100HIGH
- CVE-2001-0191EG 10.0EPSS p92HIGH
- CVE-2001-0301EG 10.0EPSS p91HIGH
- CVE-2001-0197EG 10.0EPSS p96HIGH
- CVE-2001-0233EG 10.0EPSS p96HIGH
- CVE-2001-0010EG 10.0EPSS p98HIGH
Same CWE
10 shownCWE-787 · CWE-755
Frequently asked(5)
What is CVE-2019-14378?
When was CVE-2019-14378 disclosed?
Is CVE-2019-14378 actively exploited?
What is the CVSS score of CVE-2019-14378?
How do I remediate CVE-2019-14378?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2019-14378
Is Your Infrastructure Affected by CVE-2019-14378?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.