CVE-2018-17958: Buffer Overflow
First published: Wed Sep 26 2018(Updated: )
An integer overflow issue was found in the RTL8139 NIC emulation in QEMU. It could occur while receiving packets over the network if the size value is greater than INT_MAX. Such overflow would lead to stack buffer overflow issue. A user inside guest could use this flaw to crash the QEMU process, resulting in DoS scenario.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/qemu-kvm-rhev | <10:2.12.0-33.el7 | 10:2.12.0-33.el7 |
| QEMU qemu | <=3.0.1 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =18.10 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Redhat Virtualization | =4.0 | |
| Redhat Enterprise Linux | =7.0 | |
| Redhat Virtualization Manager | =4.3 | |
| All of | ||
| Redhat Virtualization | =4.0 | |
| Redhat Enterprise Linux | =7.0 | |
| debian/qemu | 1:5.2+dfsg-11+deb11u3 1:5.2+dfsg-11+deb11u2 1:7.2+dfsg-7+deb12u7 1:9.0.2+ds-2 1:9.1.0+ds-3 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://www.cve.org/CVERecord?id=CVE-2018-17958 https://nvd.nist.gov/vuln/detail/CVE-2018-17958
- https://bugzilla.redhat.com/show_bug.cgi?id=1636712
- https://access.redhat.com/errata/RHSA-2019:2425
- https://access.redhat.com/errata/RHSA-2019:2553
- https://access.redhat.com/security/cve/cve-2018-17958
- http://www.openwall.com/lists/oss-security/2018/10/08/1
- http://www.securityfocus.com/bid/105556
- https://lists.debian.org/debian-lts-announce/2019/01/msg00023.html
- https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03269.html
- https://seclists.org/bugtraq/2019/May/76
- https://usn.ubuntu.com/3826-1/
- https://www.debian.org/security/2019/dsa-4454
- https://launchpad.net/bugs/cve/CVE-2018-17958
- https://www.openwall.com/lists/oss-security/2018/10/08/1
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1636729
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1636730
- https://git.qemu.org/?p=qemu.git;a=commit;h=1a326646fef38782e5542280040ec3ea23e4a730
- https://security-tracker.debian.org/tracker/CVE-2018-17958
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-17958
- https://nvd.nist.gov/vuln/detail/CVE-2018-17958
- https://ubuntu.com/security/CVE-2018-17958
Frequently Asked Questions
What is CVE-2018-17958?
CVE-2018-17958 is a vulnerability in the RTL8139 NIC emulation in QEMU that could lead to a stack buffer overflow issue.
How severe is CVE-2018-17958?
CVE-2018-17958 has a severity rating of 7.5 (high).
What software versions are affected by CVE-2018-17958?
QEMU versions up to 3.0.1, QEMU-KVM-RHEV version 10:2.12.0-33.el7, and various versions of Ubuntu, Debian, Canonical Ubuntu Linux, Redhat Virtualization, and Redhat Virtualization Manager are affected by CVE-2018-17958.
How do I fix CVE-2018-17958 on Redhat?
To fix CVE-2018-17958 on Redhat, update the qemu-kvm-rhev package to version 10:2.12.0-33.el7 or later.
How can I mitigate CVE-2018-17958 on Ubuntu?
To mitigate CVE-2018-17958 on Ubuntu, update the qemu package to version 1:2.12+dfsg-3ubuntu9 or later.
- collector/redhat-cve
- collector/nvd-index
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2018-17958
- agent/remedy
- agent/author
- agent/severity
- agent/description
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/weakness
- agent/references
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/tags
- agent/event
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- collector/usn-cve
- source/Ubuntu
- package-manager/redhat
- vendor/qemu
- canonical/qemu qemu
- version/qemu qemu/3.0.1
- vendor/canonical
- canonical/canonical ubuntu linux
- version/canonical ubuntu linux/14.04
- version/canonical ubuntu linux/16.04
- version/canonical ubuntu linux/18.04
- version/canonical ubuntu linux/18.10
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/8.0
- version/debian debian linux/9.0
- vendor/redhat
- canonical/redhat virtualization
- version/redhat virtualization/4.0
- canonical/redhat enterprise linux
- version/redhat enterprise linux/7.0
- canonical/redhat virtualization manager
- version/redhat virtualization manager/4.3
- package-manager/debian