Vulnerability in HP Hp-Ux
CVE-2018-5740
"deny-answer-aliases" is a little-used feature intended to help recursive server operators protect end users against DNS rebinding attacks, a potential method of circumventing the security model used by client browsers. However, a defect in this feature makes it easy, when the feature is in use, to experience an assertion failure in name.c. Affects BIND 9.7.0->9.8.8, 9.9.0->9.9.13, 9.10.0->9.10.8, 9.11.0->9.11.4, 9.12.0->9.12.2, 9.13.0->9.13.2.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.596 (99.1th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.596 · newest: 0.596 · change: 0.000
Affected products
- HP Hp-Ux
- Isc Bind
- Isc Bind 9 — versions BIND 9 9.7.0->9.8.8, 9.9.0->9.9.13, 9.10.0->9.10.8, 9.11.0->9.11.4, 9.12.0->9.12.2, 9.13.0->9.13.2
- NetApp Data Ontap Edge
- Canonical Ubuntu Linux — versions 12.04, 14.04, 16.04
- Debian Linux — versions 8.0, 9.0
- openSUSE Leap — versions 15.0, 15.1, 42.3
- Red Hat Enterprise Linux Desktop — versions 6.0, 7.0
- Red Hat Enterprise Linux Server — versions 6.0, 7.0
- Red Hat Enterprise Linux Server Aus — versions 7.6
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/105055 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.debian.org/debian-lts-announce/2018/08/msg00033.html (mailing-list, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:2570 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:2571 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3769-2/ (vendor-advisory, Third Party Advisory)
- www.securitytracker.com/id/1041436 (VDB Entry, Third Party Advisory, vdb-entry)
- security.netapp.com/advisory/ntap-20180926-0003/ (Third Party Advisory)
- kb.isc.org/docs/aa-01639 (Vendor Advisory)
- usn.ubuntu.com/3769-1/ (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/201903-13 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-5740?
- CVE-2018-5740 is a high-severity vulnerability in HP Hp-Ux, classified under Reachable Assertion. CVSS score: 7.5/10. Published 2019-01-16.
- How severe is CVE-2018-5740?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2018-5740 known to be exploited?
- 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.