Integer overflow in the vfprintf function in stdio-common/vfprintf.c in glibc 2.14 and…
Priority LOW 35CWE-189Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Partial Red Hat: 11 fixed, 1 without a fix
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-189 and the CVSS impact.
Summary
Integer overflow in the vfprintf function in stdio-common/vfprintf.c in glibc 2.14 and other versions allows context-dependent attackers to bypass the FORTIFY_SOURCE protection mechanism, conduct format string attacks, and write to arbitrary memory via a large number of arguments.
Why it matters now
EPSS 0.02717 86th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Partial Red Hat: 3 advisoriesRed Hat: 11 fixed, 1 without a fix
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-2012:0531 Released 2012-04-30 · Red Hat rating Importantrhev-hypervisor6 security and bug fix update
- RHEV Hypervisor for RHEL-6 rhev-hypervisor6-6.2-20120423.1.el6_2, rhev-hypervisor6-tools-6.2-20120423.1.el6_2
- RHSA-2012:0397 Released 2012-03-19 · Red Hat rating Moderateglibc security update
- Red Hat Enterprise Linux (v. 5 server) glibc-2.5-81.el5_8.1, glibc-2.5-81.el5_8.1.i386, glibc-2.5-81.el5_8.1.ia64 +21
- Red Hat Enterprise Linux Desktop (v. 5 client) glibc-2.5-81.el5_8.1, glibc-2.5-81.el5_8.1.i386, glibc-common-2.5-81.el5_8.1 +9
- RHSA-2012:0393 Released 2012-03-15 · Red Hat rating Moderateglibc security and bug fix update
- Red Hat Enterprise Linux Desktop (v. 6) glibc-2.12-1.47.el6_2.9, glibc-common-2.12-1.47.el6_2.9, glibc-devel-2.12-1.47.el6_2.9 +3
- Red Hat Enterprise Linux Desktop Optional (v. 6) glibc-2.12-1.47.el6_2.9, glibc-static-2.12-1.47.el6_2.9
- Red Hat Enterprise Linux HPC Node (v. 6) glibc-2.12-1.47.el6_2.9, glibc-common-2.12-1.47.el6_2.9, glibc-devel-2.12-1.47.el6_2.9 +3
- Red Hat Enterprise Linux HPC Node Optional (v. 6) glibc-2.12-1.47.el6_2.9, glibc-static-2.12-1.47.el6_2.9
- Red Hat Enterprise Linux Server (v. 6) glibc-2.12-1.47.el6_2.9, glibc-2.12-1.47.el6_2.9.ppc, glibc-common-2.12-1.47.el6_2.9 +5
- Red Hat Enterprise Linux Server Optional (v. 6) glibc-2.12-1.47.el6_2.9, glibc-static-2.12-1.47.el6_2.9, glibc-static-2.12-1.47.el6_2.9.ppc
- Red Hat Enterprise Linux Workstation (v. 6) glibc-2.12-1.47.el6_2.9, glibc-common-2.12-1.47.el6_2.9, glibc-devel-2.12-1.47.el6_2.9 +3
- Red Hat Enterprise Linux Workstation Optional (v. 6) glibc-2.12-1.47.el6_2.9, glibc-static-2.12-1.47.el6_2.9
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 4 | Affected | No fix planned: Will not fix |
| RHEV Hypervisor for RHEL-6 | Fixed | RHSA-2012:0531 |
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2012:0397 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2012:0397 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2012:0393 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2012:0393 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2012:0393 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2012:0393 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2012:0393 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2012:0393 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2012:0393 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2012:0393 |
Timeline
- 2026-10-02 Threatist record created from CVE-2012-0864
- 2026-10-03 Alias added: GHSA-x2p4-f3vf-gwp3
References
Exploit 2
More GNU Glibc vulnerabilities
- TI-2023-04522 Glibc: buffer overflow in ld.so leading to privilege escalation KEVCVSS 3.1HIGH 7.8
- TI-2015-00205 Heap-based buffer overflow in the __nss_hostname_digits_dots function in glibc 2.2, and… CVSS 2.0HIGH 10.0
- TI-2026-04772 scanf %mc off-by-one heap buffer overflow CVSS 3.1CRITICAL 9.8
- TI-2022-07360 The deprecated compatibility function clnt_create in the sunrpc module of the GNU C… CVSS 3.1CRITICAL 9.8
- TI-2022-07359 The deprecated compatibility function svcunix_create in the sunrpc module of the GNU C… CVSS 3.1CRITICAL 9.8
- TI-2015-06274 Multiple stack-based buffer overflows in the (1) send_dg and (2) send_vc functions in the… CVSS 3.0HIGH 8.1
Sources
- CVE-2012-0864 · CVE Program
- CVE-2012-0864 · NVD
- FIRST EPSS
- GHSA-x2p4-f3vf-gwp3 · GitHub Advisory Database · CC BY 4.0
- CVE-2012-0864 · Red Hat security data · CC BY 4.0
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