Medium severity5.6NVD Advisory· Published Jan 16, 2020· Updated Jun 17, 2026
CVE-2020-7039
CVE-2020-7039
Description
tcp_emu in tcp_subr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanages memory, as demonstrated by IRC DCC commands in EMU_IRC. This can cause a heap-based buffer overflow or other out-of-bounds access which can lead to a DoS or potential execute arbitrary code.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
49- QEMU/libslirpdescription
- osv-coords46 versionspkg:rpm/almalinux/cockpit-podmanpkg:rpm/almalinux/containernetworking-pluginspkg:rpm/almalinux/containers-commonpkg:rpm/almalinux/fuse-overlayfspkg:rpm/almalinux/libiscsipkg:rpm/almalinux/libiscsi-develpkg:rpm/almalinux/libiscsi-utilspkg:rpm/almalinux/netcfpkg:rpm/almalinux/netcf-develpkg:rpm/almalinux/netcf-libspkg:rpm/almalinux/oci-systemd-hookpkg:rpm/almalinux/oci-umountpkg:rpm/almalinux/python-podman-apipkg:rpm/almalinux/runcpkg:rpm/almalinux/sgabiospkg:rpm/almalinux/sgabios-binpkg:rpm/almalinux/skopeopkg:rpm/almalinux/udicapkg:rpm/opensuse/qemu&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/qemu&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/qemu-linux-user&distro=openSUSE%20Leap%2015.1pkg:rpm/suse/kvm&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/kvm&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/qemu&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/qemu&distro=SUSE%20Enterprise%20Storage%205pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP1pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/qemu&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/qemu&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/qemu&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208
< 11-1.module_el8.5.0+108+00865455+ 45 more
- (no CPE)range: < 11-1.module_el8.5.0+108+00865455
- (no CPE)range: < 0.8.3-4.module_el8.5.0+2635+e4386a39
- (no CPE)range: < 1:0.1.32-6.git1715c90.module_el8.4.0+2478+12421f43
- (no CPE)range: < 0.3-5.module_el8.3.0+2044+12421f43
- (no CPE)range: < 1.18.0-8.module_el8.6.0+2880+7d9e3703
- (no CPE)range: < 1.18.0-8.module_el8.6.0+2880+7d9e3703
- (no CPE)range: < 1.18.0-8.module_el8.3.0+2048+e7a0a3ea
- (no CPE)range: < 0.2.8-12.module_el8.5.0+2608+72063365
- (no CPE)range: < 0.2.8-12.module_el8.3.0+2048+e7a0a3ea
- (no CPE)range: < 0.2.8-12.module_el8.6.0+2880+7d9e3703
- (no CPE)range: < 1:0.1.15-2.git2d0b8a3.module_el8.5.0+119+9a9ec082
- (no CPE)range: < 2:2.3.4-2.git87f9237.module_el8.5.0+119+9a9ec082
- (no CPE)range: < 1.2.0-0.2.gitd0a45fe.module_el8.5.0+2635+e4386a39
- (no CPE)range: < 1.0.0-56.rc5.dev.git2abd837.module_el8.3.0+2044+12421f43
- (no CPE)range: < 1:0.20170427git-3.module_el8.5.0+2608+72063365
- (no CPE)range: < 1:0.20170427git-3.module_el8.5.0+2608+72063365
- (no CPE)range: < 1:0.1.32-6.git1715c90.module_el8.4.0+2496+12421f43
- (no CPE)range: < 0.2.1-2.module_el8.5.0+108+00865455
- (no CPE)range: < 3.1.1.1-lp151.7.12.1
- (no CPE)range: < 6.1.0-32.1
- (no CPE)range: < 3.1.1.1-lp151.7.12.1
- (no CPE)range: < 1.4.2-53.38.1
- (no CPE)range: < 1.4.2-60.31.1
- (no CPE)range: < 2.9.1-6.44.1
- (no CPE)range: < 2.9.1-6.44.1
- (no CPE)range: < 2.11.2-9.36.1
- (no CPE)range: < 2.11.2-9.36.1
- (no CPE)range: < 3.1.1.1-9.14.1
- (no CPE)range: < 3.1.1.1-9.14.1
- (no CPE)range: < 2.3.1-33.29.1
- (no CPE)range: < 2.6.2-41.59.1
- (no CPE)range: < 2.6.2-41.59.1
- (no CPE)range: < 2.9.1-6.44.1
- (no CPE)range: < 2.9.1-6.44.1
- (no CPE)range: < 2.11.2-5.26.1
- (no CPE)range: < 3.1.1.1-3.9.1
- (no CPE)range: < 2.11.2-9.36.1
- (no CPE)range: < 2.3.1-33.29.1
- (no CPE)range: < 2.6.2-41.59.1
- (no CPE)range: < 2.9.1-6.44.1
- (no CPE)range: < 2.11.2-5.26.1
- (no CPE)range: < 3.1.1.1-3.9.1
- (no CPE)range: < 2.11.2-9.36.1
- (no CPE)range: < 2.6.2-41.59.1
- (no CPE)range: < 2.9.1-6.44.1
- (no CPE)range: < 2.9.1-6.44.1
Patches
Vulnerability mechanics
References
14- www.openwall.com/lists/oss-security/2020/01/16/2nvdMailing ListPatchThird Party Advisory
- gitlab.freedesktop.org/slirp/libslirp/commit/2655fffed7a9e765bcb4701dd876e9dab975f289nvdPatchThird Party Advisory
- gitlab.freedesktop.org/slirp/libslirp/commit/82ebe9c370a0e2970fb5695aa19aa5214a6a1c80nvdPatchThird Party Advisory
- gitlab.freedesktop.org/slirp/libslirp/commit/ce131029d6d4a405cb7d3ac6716d03e58fb4a5d9nvdPatchThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.htmlnvdThird Party Advisory
- access.redhat.com/errata/RHSA-2020:0348nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2020:0775nvdThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/01/msg00022.htmlnvdMailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/01/msg00036.htmlnvdMailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2021/02/msg00012.htmlnvdMailing ListThird Party Advisory
- seclists.org/bugtraq/2020/Feb/0nvdMailing ListThird Party Advisory
- security.gentoo.org/glsa/202005-02nvdThird Party Advisory
- usn.ubuntu.com/4283-1/nvdThird Party Advisory
- www.debian.org/security/2020/dsa-4616nvdThird Party Advisory
News mentions
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