CVE-2020-16092: canonical ubuntu_linux Reachable Assertion
Vulnerability summary
CVE-2020-16092 is a low (CVSS 3.8) Reachable Assertion vulnerability in canonical ubuntu_linux. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 31.7% of scored vulnerabilities.
Not severe (CVSS 3.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 18 · Related 10Timeline
- 11-08-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
In QEMU through 5.0.0, an assertion failure can occur in the network packet processing. This issue affects the e1000e and vmxnet3 network devices. A malicious guest user/process could use this flaw to abort the QEMU process on the host, resulting in a denial of service condition in net_tx_pkt_add_raw_fragment in hw/net/net_tx_pkt.c.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated3.8LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
- OSV · DebianEcosystem advisory · calculated3.8LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
- OSV · AlpineEcosystem advisory · calculated3.8LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
EPSS trend
Probability
0.38%
Chance of exploitation in the next 30 days
Percentile
32%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.38% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian2 products
- qemu< 1:5.1+dfsg-1
- debian_linuxEOL9.0 | 10.0
Alpine1 product
- qemu< 5.1.0-r1
Canonical1 product
- ubuntu_linuxEOL16.04 | 18.04 | 20.04
Opensuse1 product
- leapEOL15.2
Qemu1 product
- qemu≤ 5.0.0
Ubuntu1 product
- qemu< 1:2.11+dfsg-1ubuntu7.31 | < 1:4.2-3ubuntu6.4
6 vendors · 7 products
References
15 links- lists.nongnu.org/archive/html/qemu-devel/2020-07/msg07563.htmlX Refsource MISCMailing ListPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2020/08/10/1X Refsource MISCMailing ListPatchThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/09/msg00013.htmlMailing ListX Refsource MLISTThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
