CVE-2018-5740: canonical ubuntu_linux Reachable Assertion
CVSS: 7.5v3.0HighModified
AliasesALPINE-CVE-2018-5740MGASA-2018-0353RHSA-2018:2570RHSA-2018:2571UBUNTU-CVE-2018-5740USN-3769-1DEBIAN-CVE-2018-5740DLA-1485-1CGA-6rf9-w3qg-mm7xCGA-r8c3-q2mv-37c9
Published 16-01-2019Last modified 16-09-2024
Vulnerability summary
CVE-2018-5740 is a high (CVSS 7.5) Reachable Assertion vulnerability in canonical ubuntu_linux. EPSS estimates a 59.62% chance of exploitation in the next 30 days, higher than 99.1% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.0 (CVE.org)EPSS score
59.62%
0%100%
Critical · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 6 · Related 7Timeline
- 16-01-2019PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
"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.
CVSS metrics
11 scores · 8 sources · 3 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 6 agree
- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · WolfiEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · ChainguardEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
High 7.5Preferred score · CVE.org (CNA)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 4 agree
- NVDNIST7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · Red hatEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
59.62%
Chance of exploitation in the next 30 days
Percentile
99%
Versus all other CVEs
30-day change
0.00 pp
From 59.62% on 18-09-2026
18-09-202618-10-2026
EPSS score59.62%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat20 products
- enterprise_linux_desktop6.0 | 7.0
- enterprise_linux_server6.0 | 7.0
- enterprise_linux_server_aus7.6
- enterprise_linux_server_eus7.5 | 7.6
- enterprise_linux_workstation6.0 | 7.0
Debian2 products
- bind9< 1:9.11.4.P1+dfsg-1 | < 1:9.9.5.dfsg-9+deb8u16
- debian_linuxEOL8.0 | 9.0
Isc2 products
Alpine1 product
- bind≥ 9.7.0, < 9.12.2_p1-r0 | ≥ 9.7.0, < 9.10.8_p1-r0 | ≥ 9.7.0, < 9.11.4_p1-r0
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 16.04 | 18.04
Chainguard1 product
- bindAll versions (No fix recorded)
Hp1 product
- hp-uxna
Mageia1 product
- bind< 9.10.8.P1-1.mga6
Netapp1 product
Opensuse1 product
- leapEOL15.0 | 15.1 | 42.3
Ubuntu1 product
- bind9< 1:9.9.5.dfsg-3ubuntu0.18 | < 1:9.10.3.dfsg.P4-8ubuntu1.11 | < 1:9.11.3+dfsg-1ubuntu1.2
Wolfi1 product
- bindAll versions (No fix recorded)
12 vendors · 33 products
References
31 links
lists.debian.org/debian-lts-announce/2018/08/msg00033.htmlMailing ListX Refsource MLISTThird Party AdvisoryAdvisory- access.redhat.com/errata/RHSA-2018:2570Vendor AdvisoryX Refsource REDHATThird Party AdvisoryAdvisory
- access.redhat.com/errata/RHSA-2018:2571Vendor AdvisoryX Refsource REDHATThird Party AdvisoryAdvisory
Show all 31 references
- lists.opensuse.org/opensuse-security-announce/2019-06/msg00027.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party AdvisoryAdvisory
- lists.opensuse.org/opensuse-security-announce/2019-06/msg00026.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party AdvisoryAdvisory
- support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03927en_usX Refsource CONFIRMThird Party AdvisoryAdvisory
- lists.debian.org/debian-lts-announce/2021/11/msg00001.htmlMailing ListX Refsource MLISTThird Party AdvisoryAdvisory
