TI-2011-02356 Aliases CVE-2011-2695 GHSA-jfqm-6wmx-xx52

Multiple off-by-one errors in the ext4 subsystem in the Linux kernel before 3.0-rc5 allow…

LOW 23CWE-193Published 2011-07-28 · Updated 2024-08-06

Key facts

Attack vector: Local
Privileges required: None
User interaction: — Not recorded in CVSS 2.0
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · Complete
Fix status: Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-193 and the CVSS impact.

Summary

Multiple off-by-one errors in the ext4 subsystem in the Linux kernel before 3.0-rc5 allow local users to cause a denial of service (BUG_ON and system crash) by accessing a sparse file in extent format with a write operation involving a block number corresponding to the largest possible 32-bit unsigned integer.

Why it matters now

EPSS 0.00451 39th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed Red Hat: 3 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 6

CPE	Versions	Role	Vendor
cpe:2.3:o:linux:linux_kernel::::::::	before 3.0	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:3.0:-::::::	3.0	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:3.0:rc1::::::	3.0 rc1	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:3.0:rc2::::::	3.0 rc2	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:3.0:rc3::::::	3.0 rc3	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:3.0:rc4::::::	3.0 rc4	Vulnerable	Linux

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 3.0 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:3.0:-:*:*:*:*:*:* Versions 3.0 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:3.0:rc1:*:*:*:*:*:* Versions 3.0 rc1 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:3.0:rc2:*:*:*:*:*:* Versions 3.0 rc2 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:3.0:rc3:*:*:*:*:*:* Versions 3.0 rc3 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:3.0:rc4:*:*:*:*:*:* Versions 3.0 rc4 Vulnerable ·Linux

Remediation

Red Hat 3 advisories

RHSA-2011:1386 Released 2011-10-20 · Red Hat rating Important
kernel security, bug fix, and enhancement update
- Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-274.7.1.el5, kernel-2.6.18-274.7.1.el5.ia64, kernel-PAE-2.6.18-274.7.1.el5 +14
- Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-274.7.1.el5, kernel-PAE-2.6.18-274.7.1.el5, kernel-PAE-devel-2.6.18-274.7.1.el5 +6
RHSA-2011:1253 Released 2011-09-12 · Red Hat rating Important
kernel-rt security and bug fix update
- Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-2.6.33.9-rt31.75.el6rt, kernel-rt-debug-2.6.33.9-rt31.75.el6rt, kernel-rt-debug-devel-2.6.33.9-rt31.75.el6rt +7
RHSA-2011:1189 Released 2011-08-23 · Red Hat rating Important
kernel security, bug fix, and enhancement update
- Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-131.12.1.el6, kernel-bootwrapper-2.6.32-131.12.1.el6, kernel-debug-2.6.32-131.12.1.el6 +8

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux (v. 5 server)	Fixed	RHSA-2011:1386
Red Hat Enterprise Linux Desktop (v. 5 client)	Fixed	RHSA-2011:1386
Red Hat Enterprise Linux Server (v. 6)	Fixed	RHSA-2011:1189
Red Hat MRG Realtime for RHEL 6 Server v.2	Fixed	RHSA-2011:1253

Not affected: 3 products

Red Hat Enterprise Linux (v. 5 server)
Red Hat Enterprise Linux 4
Red Hat Enterprise Linux Desktop (v. 5 client)

Timeline

2026-10-02 Threatist record created from CVE-2011-2695
2026-10-03 Alias added: GHSA-jfqm-6wmx-xx52
2026-11-05 Affected versions changed · Red Hat

References

Exploit 1

[linux-ext4] 20110603 [PATCH 1/2] ext4: Fix max file size and logical block counting of extent format file

Patch 1

https://bugzilla.redhat.com/show_bug.cgi?id=722557

Advisory 2

Other 2

TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3

See all 15278 →

Sources

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