CVE-2019-19048: canonical ubuntu_linux
Vulnerability summary
CVE-2019-19048 is a high (CVSS 7.8) vulnerability in canonical ubuntu_linux. EPSS estimates a 3.75% chance of exploitation in the next 30 days, higher than 89.9% of scored vulnerabilities.
Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 4% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2 · Related 2Timeline
- 18-11-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
A memory leak in the crypto_reportstat() function in drivers/virt/vboxguest/vboxguest_utils.c in the Linux kernel before 5.3.9 allows attackers to cause a denial of service (memory consumption) by triggering copy_form_user() failures, aka CID-e0b0cb938864.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
3.75%
Chance of exploitation in the next 30 days
Percentile
90%
Versus all other CVEs
30-day change
No change 0.00 pp
From 3.75% 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: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu21 products
- linux-aws-5.0< 5.0.0-1023.26~18.04.1
- linux-azure< 5.0.0-1028.30~18.04.1
- linux-azure-5.3< 5.3.0-1008.9~18.04.1
- linux-azure-edgeAll versions (No fix recorded)
- linux-azure-fdeAll versions (No fix recorded)
Canonical1 product
- ubuntu_linuxEOL18.04 | 19.10
Debian1 product
- linux< 5.3.9-1
Linux1 product
- linux_kernel≥ 4.16, < 4.19.82 | ≥ 4.20, < 5.3.9
4 vendors · 24 products
References
11 links- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.9X Refsource MISCREPORTRelease NotesVendor Advisory
- github.com/torvalds/linux/commit/e0b0cb9388642c104838fac100a4af32745621e2X Refsource MISCREPORTPatchThird Party Advisory
