CVE-2020-27673: debian debian_linux

Modified

AliasesUBUNTU-CVE-2020-27673DEBIAN-CVE-2020-27673

Published 22-10-2020Last modified 04-08-2024

Vulnerability summary

CVE-2020-27673 is a medium (CVSS 5.5) vulnerability in debian debian_linux. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 35.8% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

5.5/10

010

Medium · v3.1 (NVD)

EPSS score

0.41%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Timeline

22-10-2020
PublishedVulnerability first disclosed.
04-08-2024
Last modifiedVulnerability information updated.

Description

An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. Guest OS users can cause a denial of service (host OS hang) via a high rate of events to dom0, aka CID-e99502f76271.

CVSS metrics

4 scores · 3 sources · 2 versions

v3.15.5v2.04.9

EPSS trend

Probability

0.41%

Chance of exploitation in the next 30 days

Percentile

36%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.41% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu46 products

linuxAll versions (No fix recorded) | < 4.4.0-198.230 | < 4.15.0-129.132 | < 5.4.0-59.65
linux-aws< 4.4.0-1083.87 | < 4.4.0-1119.133 | < 4.15.0-1091.96 | < 5.4.0-1034.35
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4< 5.4.0-1034.35~18.04.1

linux-aws-fips< 4.15.0-2034.35 | All versions (No fix recorded) | < 5.4.0-1069.73+fips2
linux-aws-hwe< 4.15.0-1091.96~16.04.1
linux-azure< 4.15.0-1103.114~14.04.1 | < 4.15.0-1103.114~16.04.1 | All versions (No fix recorded) | < 5.4.0-1035.36
linux-azure-4.15< 4.15.0-1103.114
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1035.36~18.04.1
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fde-5.15< 5.15.0-1114.123~20.04.1
linux-azure-fips< 4.15.0-2016.18 | All versions (No fix recorded) | < 5.4.0-1073.76+fips1
linux-dell300x< 4.15.0-1010.14
linux-fips< 4.4.0-1052.58 | All versions (No fix recorded) | < 4.15.0-1049.56
linux-gcp< 4.15.0-1091.104~16.04.1 | All versions (No fix recorded) | < 5.4.0-1033.35
linux-gcp-4.15< 4.15.0-1091.104
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1033.35~18.04.1
linux-gcp-edgeAll versions (No fix recorded)
linux-gcp-fipsAll versions (No fix recorded) | < 5.4.0-1067.71~20.04.1
linux-gke-4.15< 4.15.0-1077.82
linux-gke-5.4< 5.4.0-1033.35~18.04.1
linux-gkeop-5.4< 5.4.0-1008.9~18.04.1
linux-hwe< 4.15.0-129.132~16.04.1 | All versions (No fix recorded)
linux-hwe-5.4< 5.4.0-59.65~18.04.1
linux-hwe-5.8< 5.8.0-44.50~20.04.1
linux-hwe-edgeAll versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded)
linux-kvm< 4.4.0-1085.94 | < 4.15.0-1082.84 | < 5.4.0-1031.32
linux-lts-xenial< 4.4.0-198.230~14.04.1
linux-oemAll versions (No fix recorded)
linux-oem-5.6All versions (No fix recorded)
linux-oracle< 4.15.0-1062.68~16.04.1 | < 4.15.0-1062.68 | < 5.4.0-1034.36
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1034.36~18.04.1
linux-raspi< 5.4.0-1026.29
linux-raspi-5.4< 5.4.0-1026.29~18.04.1
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2< 4.4.0-1143.153 | < 4.15.0-1077.82 | All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded)
linux-riscvAll versions (No fix recorded)
linux-riscv-5.8< 5.8.0-17.19~20.04.1
linux-snapdragon< 4.4.0-1147.157 | < 4.15.0-1094.103

Show all 46

Debian2 products

linux< 5.9.6-1
debian_linuxEOL9.0

Linux1 product

linux_kernel≥ 2.6.12, < 4.4.244 | ≥ 4.5.0, < 4.9.244 | ≥ 4.10.0, < 4.14.207 | ≥ 4.15.0, < 4.19.155 | ≥ 4.20.0, < 5.4.75 | ≥ 5.5.0, < 5.9.5 | 5.10:rc1

Opensuse1 product

leapEOL15.1 | 15.2

Xen1 product

xen≤ 4.14.0

5 vendors · 51 products

References

13 links

xenbits.xen.org/xsa/advisory-332.htmlX Refsource MISCREPORTPatchThird Party Advisory
github.com/torvalds/linux/commit/e99502f76271d6bc4e374fe368c50c67a1fd3070X Refsource MISCREPORTPatchThird Party Advisory
git.kernel.org/cgit/…X Refsource MISCREPORTPatchVendor Advisory
lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
security.gentoo.org/glsa/202011-06Vendor AdvisoryX Refsource GENTOOThird Party Advisory
lists.debian.org/debian-lts-announce/2020/12/msg00015.htmlMailing ListX Refsource MLISTThird Party Advisory
lists.debian.org/debian-lts-announce/2020/12/msg00027.htmlMailing ListX Refsource MLISTThird Party Advisory
www.openwall.com/lists/oss-security/2021/01/19/6Mailing ListX Refsource MLISTThird Party Advisory
ubuntu.com/security/CVE-2020-27673REPORT

Show all 13 references

ubuntu.com/security/notices/USN-4751-1Advisory
www.cve.org/CVERecord?id=CVE-2020-27673REPORT
security-tracker.debian.org/tracker/CVE-2020-27673Advisory