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Vulnerability record · CVE-2019-15890 · published 6 September 2019

CVE-2019-15890: Libslirp project libslirp use after free vulnerability

LLibslirp Project · Libslirp

libslirp 4.0.0, as used in QEMU 4.1.0, has a use-after-free in ip_reass in ip_input.c.

7.5 CVSS 3.1 High EPSS 4.0% · top 9.8% CWE-416 · Use after free
7.5CVSS 3.1 base score, v2 5.0
4.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
18References
17 Jun 2026Last modified by NVD

Description

libslirp 4.0.0, as used in QEMU 4.1.0, has a use-after-free in ip_reass in ip_input.c.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00034.html
http://www.openwall.com/lists/oss-security/2019/09/06/3 Mailing ListPatchThird Party Advisory
https://access.redhat.com/errata/RHSA-2020:0775
https://gitlab.freedesktop.org/slirp/libslirp/commit/c5927943 PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/09/msg00021.html
https://seclists.org/bugtraq/2020/Feb/0
https://usn.ubuntu.com/4191-1/
https://usn.ubuntu.com/4191-2/
https://www.debian.org/security/2020/dsa-4616
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00034.html
http://www.openwall.com/lists/oss-security/2019/09/06/3 Mailing ListPatchThird Party Advisory
https://access.redhat.com/errata/RHSA-2020:0775
https://gitlab.freedesktop.org/slirp/libslirp/commit/c5927943 PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/09/msg00021.html
https://seclists.org/bugtraq/2020/Feb/0
https://usn.ubuntu.com/4191-1/
https://usn.ubuntu.com/4191-2/
https://www.debian.org/security/2020/dsa-4616

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2019-15890), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.