Vulnerability Details : CVE-2016-9104
Multiple integer overflows in the (1) v9fs_xattr_read and (2) v9fs_xattr_write functions in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allow local guest OS administrators to cause a denial of service (QEMU process crash) via a crafted offset, which triggers an out-of-bounds access.
Vulnerability category: Denial of service
Products affected by CVE-2016-9104
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-9104
0.12%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 27 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-9104
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST | |
4.4
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
0.8
|
3.6
|
NIST |
CWE ids for CVE-2016-9104
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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 (Primary)
References for CVE-2016-9104
-
https://security.gentoo.org/glsa/201611-11
QEMU: Multiple vulnerabilities (GLSA 201611-11) — Gentoo securityThird Party Advisory
-
http://www.openwall.com/lists/oss-security/2016/10/28/2
oss-security - CVE request Qemu: 9pfs: integer overflow leading to OOB accessMailing List;Third Party Advisory
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http://www.securityfocus.com/bid/93956
QEMU 'hw/9pfs/9p.c' Integer Overflow VulnerabilityThird Party Advisory;VDB Entry
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https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg02942.html
Re: [Qemu-devel] [PATCH v3 3/3] 9pfs: fix integer overflow issue in xattPatch;Third Party Advisory
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http://www.openwall.com/lists/oss-security/2016/10/30/8
oss-security - Re: CVE request Qemu: 9pfs: integer overflow leading to OOB accessMailing List;Third Party Advisory
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https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
[SECURITY] [DLA 1599-1] qemu security updateMailing List;Third Party Advisory
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http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
openSUSE-SU-2016:3237-1: moderate: Security update for qemuMailing List;Third Party Advisory
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