Vulnerability Details : CVE-2018-10839
Qemu emulator <= 3.0.0 built with the NE2000 NIC emulation support is vulnerable to an integer overflow, which could lead to buffer overflow issue. It could occur when receiving packets over the network. A user inside guest could use this flaw to crash the Qemu process resulting in DoS.
Vulnerability category: OverflowDenial of service
Products affected by CVE-2018-10839
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-10839
0.22%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 60 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-10839
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:N/I:N/A:P |
8.0
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H |
2.2
|
4.2
|
Red Hat, Inc. |
CWE ids for CVE-2018-10839
-
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).Assigned by: secalert@redhat.com (Primary)
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by: nvd@nist.gov (Secondary)
References for CVE-2018-10839
-
https://www.openwall.com/lists/oss-security/2018/10/08/1
oss-security - Qemu: integer overflow issuesMailing List;Third Party Advisory
-
https://www.debian.org/security/2018/dsa-4338
Debian -- Security Information -- DSA-4338-1 qemuVendor Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10839
1581013 – (CVE-2018-10839) CVE-2018-10839 Qemu: ne2000: integer overflow leads to buffer overflow issueIssue Tracking;Third Party Advisory
-
https://access.redhat.com/errata/RHSA-2019:2892
RHSA-2019:2892 - Security Advisory - Red Hat Customer Portal
-
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
[SECURITY] [DLA 1599-1] qemu security updateThird Party Advisory
-
https://usn.ubuntu.com/3826-1/
USN-3826-1: QEMU vulnerabilities | Ubuntu security noticesPatch;Vendor Advisory
-
https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03273.html
[Qemu-devel] [PULL 21/25] ne2000: fix possible out of bound access in neExploit;Mailing List;Third Party Advisory
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