CVE-2019-7308 — Sensitive Information Exposure in Kernel

CWE-189CWE-200 — Sensitive Information Exposure14 documents7 sources
Severity
5.6MEDIUMNVD
OSV7.8
EPSS
0.0%
top 90.71%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Linux KernelDebian LinuxCanonical Ubuntu Linux+1 more
Timeline
PublishedFeb 1
Latest updateMay 13

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 vector

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:NExploitability: 1.1 | Impact: 4.0

Affected Packages5 packages

▶NVDlinux/linux_kernel4.20.0 — 4.20.6+1
▶Debianlinux/linux_kernel< 4.19.20-1+3
▶Ubuntulinux/linux_kernel< 4.15.0-47.50
▶debiandebian/linux< linux 4.19.20-1 (bookworm)
▶NVDopensuse/leap15.0

Also affects: Ubuntu Linux 14.04, 16.04, 18.04, 18.10

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: bugs.chromium.org ↗

🔴Vulnerability Details

5
GHSA
GHSA-vww8-62hf-x3fx: kernel/bpf/verifier↗2022-05-13
▶
OSV
linux, linux-aws, linux-gcp, linux-kvm, linux-oem, linux-oracle, linux-raspi2 vulnerabilities↗2019-04-02
▶
OSV
linux-hwe, linux-azure vulnerabilities↗2019-04-02
▶
OSV
linux-hwe, linux-aws-hwe, linux-azure, linux-gcp, linux-oracle vulnerabilities↗2019-04-02
▶
OSV
CVE-2019-7308: kernel/bpf/verifier↗2019-02-01
▶

📋Vendor Advisories

6
Ubuntu
Linux kernel (HWE) vulnerabilities↗2019-04-02
▶
Ubuntu
Linux kernel (HWE) vulnerabilities↗2019-04-02
▶
Ubuntu
Linux kernel vulnerabilities↗2019-04-02
▶
Ubuntu
Linux kernel vulnerabilities↗2019-04-02
▶
Red Hat
kernel: eBPF: Spectre v1 mitigation bypass↗2019-01-03
▶

💬Community

2
Bugzilla
CVE-2019-7308 kernel: eBPF: Spectre v1 mitigation bypass↗2019-02-04
▶
Bugzilla
CVE-2019-7308 kernel: eBPF: Spectre v1 mitigation bypass [fedora-all]↗2019-02-04
▶