CVE-2019-15890: Use After Free
First published: Sun Aug 25 2019(Updated: )
A use-after-free issue was found in the SLiRP networking implementation of the QEMU emulator. It occurs in ip_reass() routine while reassembling incoming packets, if the first fragment is bigger than the m->m_dat[] buffer. A user/process could use this flaw to crash the Qemu process on the host resulting in DoS. Upstream patch: --------------- -> <a href="https://gitlab.freedesktop.org/slirp/libslirp/commit/c59279437eda91841b9d26079c70b8a540d41204">https://gitlab.freedesktop.org/slirp/libslirp/commit/c59279437eda91841b9d26079c70b8a540d41204</a>
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/qemu-kvm | <2:0.12.1.2-2.506.el6_10.6 | 2:0.12.1.2-2.506.el6_10.6 |
| redhat/slirp4netns | <0:0.3.0-8.el7_7 | 0:0.3.0-8.el7_7 |
| libslirp | =4.0.0 | |
| QEMU KVM | =4.1.0 | |
| debian/qemu | 1:5.2+dfsg-11+deb11u3 1:5.2+dfsg-11+deb11u2 1:7.2+dfsg-7+deb12u12 1:9.2.1+ds-1 | |
| debian/slirp4netns | 1.0.1-2 1.2.0-1 1.2.1-1 |
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2019-15890 https://nvd.nist.gov/vuln/detail/CVE-2019-15890
- https://bugzilla.redhat.com/show_bug.cgi?id=1749716
- https://access.redhat.com/errata/RHBA-2020:3172
- https://access.redhat.com/errata/RHSA-2020:0775
- https://access.redhat.com/errata/RHSA-2020:0889
- https://access.redhat.com/errata/RHSA-2020:0348
- https://access.redhat.com/errata/RHSA-2020:4676
- https://access.redhat.com/security/cve/cve-2019-15890
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00034.html
- http://www.openwall.com/lists/oss-security/2019/09/06/3
- https://gitlab.freedesktop.org/slirp/libslirp/commit/c5927943
- 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
- https://launchpad.net/bugs/cve/CVE-2019-15890
- https://gitlab.freedesktop.org/slirp/libslirp/commit/c59279437eda91841b9d26079c70b8a540d41204
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1749730
- https://www.openwall.com/lists/oss-security/2019/09/06/3
- https://github.com/rootless-containers/slirp4netns/security/advisories/GHSA-jx98-2j5v-w265
- https://security-tracker.debian.org/tracker/CVE-2019-15890
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15890
- https://nvd.nist.gov/vuln/detail/CVE-2019-15890
- https://ubuntu.com/security/CVE-2019-15890
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is CVE-2019-15890?
CVE-2019-15890 is a vulnerability in libslirp 4.0.0 as used in QEMU 4.1.0 that allows a use-after-free issue in the SLiRP networking implementation.
What is the severity of CVE-2019-15890?
The severity of CVE-2019-15890 is high, with a severity value of 7.5.
How does CVE-2019-15890 affect the affected software?
CVE-2019-15890 affects QEMU versions 4.1.0 and libslirp version 4.0.0.
What is the remedy for CVE-2019-15890?
Apply the provided updates or patches from the respective software vendors.
Where can I find more information about CVE-2019-15890?
More information about CVE-2019-15890 can be found at the provided references.
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