CVE-2019-7308: canonical ubuntu_linux Numeric Errors
Vulnerability summary
CVE-2019-7308 is a medium (CVSS 5.6) Numeric Errors vulnerability in canonical ubuntu_linux. EPSS estimates a 0.54% chance of exploitation in the next 30 days, higher than 45.6% of scored vulnerabilities.
Not severe (CVSS 5.6, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 11 · Related 8Timeline
- 01-02-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
kernel/bpf/verifier.c in the Linux kernel before 4.20.6 performs undesirable out-of-bounds speculation on pointer arithmetic in various cases, including cases of different branches with different state or limits to sanitize, leading to side-channel attacks.
CVSS metrics
5 scores · 3 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated5.6MediumCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.6MediumCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
EPSS trend
Probability
0.54%
Chance of exploitation in the next 30 days
Percentile
46%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.54% 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.
Ubuntu23 products
- linuxAll versions (No fix recorded) | < 4.15.0-47.50
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 4.15.0-1035.37
- linux-aws-5.19All versions (No fix recorded)
- linux-aws-hwe< 4.15.0-1035.37~16.04.1
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 18.04 | 18.10
Debian1 product
- linux< 4.19.20-1
Linux1 product
- linux_kernel< 4.19.19 | ≥ 4.20.0, < 4.20.6
Opensuse1 product
- leapEOL15.0
5 vendors · 27 products
References
23 links- github.com/torvalds/linux/commit/979d63d50c0c0f7bc537bf821e056cc9fe5abd38X Refsource MISCPatchThird Party Advisory
- bugs.chromium.org/p/project-zero/issues/detail?id=1711X Refsource MISCIssue TrackingPatchThird Party Advisory
- github.com/torvalds/linux/commit/d3bd7413e0ca40b60cf60d4003246d067cafdedaX Refsource MISCPatchThird Party Advisory
Show all 23 references
- lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
- support.f5.com/csp/article/K43030517X Refsource CONFIRM
- git.kernel.org/pub/…REPORT
