kernel: /proc/$pid/maps visible during initial setuid ELF loading
Published Aug 14, 2009
2.1
LOWCVSS 2.0
EPSS 0.39%
Description
The mm_for_maps function in fs/proc/base.c in the Linux kernel 2.6.30.4 and earlier allows local users to read (1) maps and (2) smaps files under proc/ via vectors related to ELF loading, a setuid process, and a race condition.
Affected products
No data.
- ≤ 2.6.30.4
- 2.6.30
- 2.6.30
- 2.6.30
- 2.6.30
- 2.6.30
- 2.6.30
- 2.6.30
- 2.6.30.1
- 2.6.30.2
No data.
MRG for RHEL-5
kernel-rt-0:2.6.24.7-137.el5rt
Fixed · RHSA-2009:1540
| Product | Package | State | Advisory |
|---|---|---|---|
| MRG for RHEL-5 | kernel-rt-0:2.6.24.7-137.el5rt | Fixed | RHSA-2009:1540 |
No package ranges for this CVE.
Remediation
Red Hat statement
We currently have no plans to fix this flaw in Red Hat Enterprise Linux 3, 4, and 5 as it is not possible to trigger the information leak if the suid_dumpable tunable is set to zero (which is the default).
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:P/I:N/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 | 0.39% (0.00393) | 31.07th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.39% (0.00393) | 30.87th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00058) | 15.19th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 11.89th | v3 (v2023.03.01) |
| Jul 2, 2024 | 0.04% (0.00044) | 10.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 8.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
References (20)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=00f89d218523b9bf6b522349c039d5ac80aa536d x_refsource_CONFIRM
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=13f0feafa6b8aead57a2a328e2fca6a5828bf286 x_refsource_CONFIRM
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=704b836cbf19e885f8366bccb2e4b0474346c02d x_refsource_CONFIRM
- http://lkml.org/lkml/2009/6/23/652 mailing-listx_refsource_MLIST
- http://lkml.org/lkml/2009/6/23/653 mailing-listx_refsource_MLISTPatch
- http://marc.info/?l=linux-kernel&m=124718946021193 mailing-listx_refsource_MLISTPatch
- http://marc.info/?l=linux-kernel&m=124718949821250 mailing-listx_refsource_MLISTPatch
- http://secunia.com/advisories/36265 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/36501 third-party-advisoryx_refsource_SECUNIA
- http://www.debian.org/security/2010/dsa-2005 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2009/08/11/1 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/36019 vdb-entryx_refsource_BID
- http://www.vupen.com/english/advisories/2009/2246 vdb-entryx_refsource_VUPENVendor Advisory
- https://access.redhat.com/security/cve/CVE-2009-2691 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=516171 x_refsource_CONFIRMIssue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/52401 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2009-2691
- https://rhn.redhat.com/errata/RHSA-2009-1540.html vendor-advisoryx_refsource_REDHAT
- https://www.cve.org/CVERecord?id=CVE-2009-2691
- https://www.redhat.com/archives/fedora-package-announce/2009-August/msg01256.html vendor-advisoryx_refsource_FEDORA
Change history (0)
No recorded changes yet.