Stack-based buffer overflow in string/strcoll_l.c in the GNU C Library (aka glibc or…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- High
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
Stack-based buffer overflow in string/strcoll_l.c in the GNU C Library (aka glibc or libc6) 2.17 and earlier allows context-dependent attackers to cause a denial of service (crash) or possibly execute arbitrary code via a long string that triggers a malloc failure and use of the alloca function.
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
CPE configurations NVD · 26
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* | up to 2.17 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.0:*:*:*:*:*:*:* | 2.0 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.0.1:*:*:*:*:*:*:* | 2.0.1 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.0.2:*:*:*:*:*:*:* | 2.0.2 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.0.3:*:*:*:*:*:*:* | 2.0.3 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.0.4:*:*:*:*:*:*:* | 2.0.4 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.0.5:*:*:*:*:*:*:* | 2.0.5 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.0.6:*:*:*:*:*:*:* | 2.0.6 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.1:*:*:*:*:*:*:* | 2.1 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.1.1:*:*:*:*:*:*:* | 2.1.1 | Vulnerable | GNU |
- cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* Versions up to 2.17 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.0:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.0.1:*:*:*:*:*:*:* Versions 2.0.1 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.0.2:*:*:*:*:*:*:* Versions 2.0.2 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.0.3:*:*:*:*:*:*:* Versions 2.0.3 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.0.4:*:*:*:*:*:*:* Versions 2.0.4 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.0.5:*:*:*:*:*:*:* Versions 2.0.5 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.0.6:*:*:*:*:*:*:* Versions 2.0.6 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.1:*:*:*:*:*:*:* Versions 2.1 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.1.1:*:*:*:*:*:*:* Versions 2.1.1 Vulnerable ·GNU
Show 16 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gnu:glibc:2.1.1.6:*:*:*:*:*:*:* | 2.1.1.6 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.1.2:*:*:*:*:*:*:* | 2.1.2 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.1.3:*:*:*:*:*:*:* | 2.1.3 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.1.9:*:*:*:*:*:*:* | 2.1.9 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.10.1:*:*:*:*:*:*:* | 2.10.1 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.11:*:*:*:*:*:*:* | 2.11 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.11.1:*:*:*:*:*:*:* | 2.11.1 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.11.2:*:*:*:*:*:*:* | 2.11.2 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.11.3:*:*:*:*:*:*:* | 2.11.3 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.12.1:*:*:*:*:*:*:* | 2.12.1 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.12.2:*:*:*:*:*:*:* | 2.12.2 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.13:*:*:*:*:*:*:* | 2.13 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.14:*:*:*:*:*:*:* | 2.14 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.14.1:*:*:*:*:*:*:* | 2.14.1 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.15:*:*:*:*:*:*:* | 2.15 | Vulnerable | GNU |
| cpe:2.3:a:gnu:glibc:2.16:*:*:*:*:*:*:* | 2.16 | Vulnerable | GNU |
- cpe:2.3:a:gnu:glibc:2.1.1.6:*:*:*:*:*:*:* Versions 2.1.1.6 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.1.2:*:*:*:*:*:*:* Versions 2.1.2 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.1.3:*:*:*:*:*:*:* Versions 2.1.3 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.1.9:*:*:*:*:*:*:* Versions 2.1.9 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.10.1:*:*:*:*:*:*:* Versions 2.10.1 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.11:*:*:*:*:*:*:* Versions 2.11 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.11.1:*:*:*:*:*:*:* Versions 2.11.1 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.11.2:*:*:*:*:*:*:* Versions 2.11.2 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.11.3:*:*:*:*:*:*:* Versions 2.11.3 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.12.1:*:*:*:*:*:*:* Versions 2.12.1 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.12.2:*:*:*:*:*:*:* Versions 2.12.2 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.13:*:*:*:*:*:*:* Versions 2.13 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.14:*:*:*:*:*:*:* Versions 2.14 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.14.1:*:*:*:*:*:*:* Versions 2.14.1 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.15:*:*:*:*:*:*:* Versions 2.15 Vulnerable ·GNU
- cpe:2.3:a:gnu:glibc:2.16:*:*:*:*:*:*:* Versions 2.16 Vulnerable ·GNU
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
Not affected: 1 product
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2012-4424
- 2026-10-03 Alias added: GHSA-xmcm-jqgw-pm47
References
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-2012-4424 · CVE Program
- CVE-2012-4424 · NVD
- FIRST EPSS
- GHSA-xmcm-jqgw-pm47 · GitHub Advisory Database · CC BY 4.0
- CVE-2012-4424 · Red Hat security data · CC BY 4.0
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