Buffer overflow in the xfs_readlink function in fs/xfs/xfs_vnodeops.c in XFS in the Linux…
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
Buffer overflow in the xfs_readlink function in fs/xfs/xfs_vnodeops.c in XFS in the Linux kernel 2.6, when CONFIG_XFS_DEBUG is disabled, allows local users to cause a denial of service (memory corruption and crash) and possibly execute arbitrary code via an XFS image containing a symbolic link with a long pathname.
Why it matters now
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
Remediation
Red Hat 3 advisories
- RHSA-2012:0350 Released 2012-03-06 · Red Hat rating Moderatekernel security and bug fix update
- Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-220.7.1.el6, kernel-debug-2.6.32-220.7.1.el6, kernel-debug-devel-2.6.32-220.7.1.el6 +5
- Red Hat Enterprise Linux Desktop Optional (v. 6) kernel-2.6.32-220.7.1.el6, python-perf-2.6.32-220.7.1.el6
- Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-220.7.1.el6, kernel-debug-2.6.32-220.7.1.el6, kernel-debug-devel-2.6.32-220.7.1.el6 +5
- Red Hat Enterprise Linux HPC Node Optional (v. 6) kernel-2.6.32-220.7.1.el6, python-perf-2.6.32-220.7.1.el6
- Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-220.7.1.el6, kernel-bootwrapper-2.6.32-220.7.1.el6, kernel-debug-2.6.32-220.7.1.el6 +8
- Red Hat Enterprise Linux Server Optional (v. 6) kernel-2.6.32-220.7.1.el6, python-perf-2.6.32-220.7.1.el6
- Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-220.7.1.el6, kernel-debug-2.6.32-220.7.1.el6, kernel-debug-devel-2.6.32-220.7.1.el6 +5
- Red Hat Enterprise Linux Workstation Optional (v. 6) kernel-2.6.32-220.7.1.el6, python-perf-2.6.32-220.7.1.el6
- RHSA-2012:0333 Released 2012-02-23 · Red Hat rating Importantkernel-rt security and bug fix update
- Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-3.0.18-rt34.53.el6rt, kernel-rt-debug-3.0.18-rt34.53.el6rt, kernel-rt-debug-devel-3.0.18-rt34.53.el6rt +7
- RHSA-2012:0007 Released 2012-01-10 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-274.17.1.el5, kernel-2.6.18-274.17.1.el5.ia64, kernel-PAE-2.6.18-274.17.1.el5 +18
- Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-274.17.1.el5, kernel-PAE-2.6.18-274.17.1.el5, kernel-PAE-devel-2.6.18-274.17.1.el5 +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-2012:0007 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2012:0007 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2012:0350 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2012:0350 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2012:0350 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2012:0350 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2012:0350 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2012:0350 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2012:0350 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2012:0350 |
| Red Hat MRG Realtime for RHEL 6 Server v.2 | Fixed | RHSA-2012:0333 |
Not affected: 1 product
- Red Hat Enterprise Linux 4
Timeline
- 2026-10-02 Threatist record created from CVE-2011-4077
- 2026-10-03 Alias added: GHSA-wr72-x72c-p32w
References
Exploit 1
Patch 4
- [oss-security] 20111026 CVE Request -- kernel: xfs: potential buffer overflow in xfs_readlink()
- https://bugzilla.redhat.com/show_bug.cgi?id=749156
- [oss-security] 20111026 Re: CVE Request -- kernel: xfs: potential buffer overflow in xfs_readlink()
- [xfs] 20111018 [PATCH] Fix possible memory corruption in xfs_readlink
Advisory 1
More Linux Kernel vulnerabilities
- 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
Sources
- CVE-2011-4077 · CVE Program
- CVE-2011-4077 · NVD
- FIRST EPSS
- GHSA-wr72-x72c-p32w · GitHub Advisory Database · CC BY 4.0
- CVE-2011-4077 · Red Hat security data · CC BY 4.0
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