Buffer overflow in Oracle Linux
CVE-2016-5126
Heap-based buffer overflow in the iscsi_aio_ioctl function in block/iscsi.c in QEMU allows local guest OS users to cause a denial of service (QEMU process crash) or possibly execute arbitrary code via a crafted iSCSI asynchronous I/O ioctl call.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (51.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Oracle Linux — versions 7
- Qemu
- Canonical Ubuntu Linux — versions 12.04, 14.04, 16.04
- Debian Linux — versions 8.0
- Red Hat Enterprise Linux — versions 7.0
- Red Hat Enterprise Linux Desktop — versions 7.0
- Red Hat Enterprise Linux Eus — versions 7.2, 7.3, 7.4
- Red Hat Enterprise Linux Server — versions 7.0
- Red Hat Enterprise Linux Server Aus — versions 7.2, 7.3, 7.4
- Red Hat Enterprise Linux Server Tus — versions 7.2, 7.3, 7.6
Weakness classification (CWE)
References
- rhn.redhat.com/errata/RHSA-2016-1756.html (vendor-advisory, Third Party Advisory)
- www.ubuntu.com/usn/USN-3047-1 (vendor-advisory, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2016-1655.html (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2016/05/30/6 (mailing-list, Mailing List, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2016-1763.html (vendor-advisory, Third Party Advisory)
- www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html (Third Party Advisory)
- www.securityfocus.com/bid/90948 (VDB Entry, Third Party Advisory, vdb-entry)
- rhn.redhat.com/errata/RHSA-2016-1653.html (vendor-advisory, Third Party Advisory)
- git.qemu.org/
- rhn.redhat.com/errata/RHSA-2016-1607.html (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-5126?
- CVE-2016-5126 is a high-severity vulnerability in Oracle Linux, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2016-06-01.
- How severe is CVE-2016-5126?
- High severity. CVSS v3 base score is 7.8 out of 10.