CVE-2019-6778
In QEMU 3.0.0, tcp_emu in slirp/tcp_subr.c has a heap-based buffer overflow.
02 Description
In QEMU 3.0.0, tcp_emu in slirp/tcp_subr.c has a heap-based buffer overflow.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.61% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 48.9% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2019-03-17 18:00Z7 YR AGO
- Last updated
- 2024-08-04 20:31Z2 YR AGO
- Reserved
- 2019-01-24
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- a3f25d4446968827d1e4008807703118ce5c1ca0810079436e95ee49d324617e
05 Affected products
06 References
- www.securityfocus.com106758http://www.securityfocus.com/bid/106758
- lists.opensuse.orgSUSE-SA-2019:0254-1http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00073.html
- www.openwall.comhttp://www.openwall.com/lists/oss-security/2019/01/24/5
- lists.gnu.orghttps://lists.gnu.org/archive/html/qemu-devel/2019-01/msg03132.html
- lists.fedoraproject.orgFEDORA-2019-88a98ce795https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CGCFIFSIWUREEQQOZDZFBYKWZHXCWBZN/
- usn.ubuntu.comUSN-3923-1https://usn.ubuntu.com/3923-1/
- lists.fedoraproject.orgFEDORA-2019-0664c7724dhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KJMTVGDLA654HNCDGLCUEIP36SNJEKK7/
- lists.opensuse.orgopenSUSE-SU-2019:1074http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.html
- lists.opensuse.orgopenSUSE-SU-2019:1226http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html
- www.debian.orgDSA-4454https://www.debian.org/security/2019/dsa-4454
- seclists.org20190531 [SECURITY] [DSA 4454-1] qemu security updatehttps://seclists.org/bugtraq/2019/May/76
- access.redhat.comRHSA-2019:1883https://access.redhat.com/errata/RHSA-2019:1883
- access.redhat.comRHSA-2019:1968https://access.redhat.com/errata/RHSA-2019:1968
- access.redhat.comRHSA-2019:2425https://access.redhat.com/errata/RHSA-2019:2425
- lists.opensuse.orgopenSUSE-SU-2019:2044http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00001.html
- access.redhat.comRHSA-2019:2892https://access.redhat.com/errata/RHSA-2019:2892
- lists.opensuse.orgopenSUSE-SU-2020:0468http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.html
07 Fixed in
Debian 12
- qemu Fixed in 1:3.1+dfsg-3
- slirp4netns Fixed in 0.2.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- qemu Fixed in 1:3.1+dfsg-3
- slirp4netns Fixed in 0.2.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- qemu Fixed in 1:3.1+dfsg-3
- slirp4netns Fixed in 0.2.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- qemu Fixed in 2.0.0+dfsg-2ubuntu1.45
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- qemu Fixed in 1:2.5+dfsg-5ubuntu10.36
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- qemu Fixed in 1:2.11+dfsg-1ubuntu7.12
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.