kernel: mounting proc readonly on a different mount point silently mounts it rw if the /proc mount is rw
Published May 27, 2021
5.5
MEDIUMCVSS 3.1
EPSS 0.31%
Description
Mounting /proc filesystem via chroot command silently mounts it in read-write mode. The user could bypass the chroot environment and gain write access to files, he would never have otherwise.
Affected products
No data.
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.31% (0.00306) | 21.13th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.30% (0.00303) | 21.78th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00041) | 9.74th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 14.77th | v3 (v2023.03.01) |
| Jun 9, 2024 | 0.04% (0.00044) | 12.69th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 10.67th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
References (5)
- https://access.redhat.com/security/cve/CVE-2008-2544 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=213135 x_refsource_MISCExploitIssue TrackingThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=449089 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2008-2544
- https://www.cve.org/CVERecord?id=CVE-2008-2544
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2008-2544 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=213135 | x_refsource_MISCExploitIssue TrackingThird Party Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=449089 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2008-2544 | ||
| https://www.cve.org/CVERecord?id=CVE-2008-2544 |
Change history (0)
No recorded changes yet.