glibc: FORTIFY_SOURCE format string protection bypass via "nargs" integer overflow
Published May 2, 2013
6.8
MEDIUMCVSS 2.0
EPSS 2.72%
Description
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.
Affected products
No data.
No data.
RHEV 3.X Hypervisor and Agents for RHEL-6
rhev-hypervisor6-0:6.2-20120423.1.el6_2
Fixed · RHSA-2012:0531
Red Hat Enterprise Linux 5
glibc-0:2.5-81.el5_8.1
Fixed · RHSA-2012:0397
Red Hat Enterprise Linux 6
glibc-0:2.12-1.47.el6_2.9
Fixed · RHSA-2012:0393
Red Hat Enterprise Linux 4
glibc
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| RHEV 3.X Hypervisor and Agents for RHEL-6 | rhev-hypervisor6-0:6.2-20120423.1.el6_2 | Fixed | RHSA-2012:0531 |
| Red Hat Enterprise Linux 5 | glibc-0:2.5-81.el5_8.1 | Fixed | RHSA-2012:0397 |
| Red Hat Enterprise Linux 6 | glibc-0:2.12-1.47.el6_2.9 | Fixed | RHSA-2012:0393 |
| Red Hat Enterprise Linux 4 | glibc | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
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:N/AC:M/Au:N/C:P/I:P/A:P
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 (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.72% (0.02717) | 85.50th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.72% (0.02717) | 84.04th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.11% (0.02114) | 82.56th | v4 (v2025.03.14) |
| Mar 29, 2025 | 9.23% (0.09231) | 87.74th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.35% (0.01353) | 78.79th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.24% (0.01240) | 86.08th | v3 (v2023.03.01) |
| Jul 9, 2024 | 1.30% (0.01296) | 85.92th | v3 (v2023.03.01) |
| Jun 19, 2023 | 1.30% (0.01296) | 83.92th | v3 (v2023.03.01) |
| May 1, 2023 | 1.83% (0.01828) | 86.45th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.57% (0.02569) | 88.57th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.54% (0.01537) | 74.52th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.54% (0.01537) | 74.00th | v2 (v2022.01.01) |
| Feb 3, 2023 | 2.69% (0.02686) | 82.44th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.54% (0.01537) | 72.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.54% (0.01537) | 51.33th | v2 (v2022.01.01) |
References (12)
- http://rhn.redhat.com/errata/RHSA-2012-0393.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2012-0397.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2012-0488.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2012-0531.html vendor-advisoryx_refsource_REDHAT
- http://sourceware.org/git/?p=glibc.git%3Ba=commitdiff%3Bh=7c1f4834d398163d1ac8101e35e9c36fc3176e6e x_refsource_MISC
- http://sourceware.org/ml/libc-alpha/2012-02/msg00023.html mailing-listx_refsource_MLISTExploit
- http://www.phrack.org/issues.html?issue=67&id=9#article x_refsource_MISCExploit
- http://www.securityfocus.com/bid/52201 vdb-entryx_refsource_BIDExploit
- https://access.redhat.com/security/cve/CVE-2012-0864 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=794766 x_refsource_CONFIRMIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2012-0864
- https://www.cve.org/CVERecord?id=CVE-2012-0864
| Link | Providers | Tags |
|---|---|---|
| http://rhn.redhat.com/errata/RHSA-2012-0393.html | vendor-advisoryx_refsource_REDHAT | |
| http://rhn.redhat.com/errata/RHSA-2012-0397.html | vendor-advisoryx_refsource_REDHAT | |
| http://rhn.redhat.com/errata/RHSA-2012-0488.html | vendor-advisoryx_refsource_REDHAT | |
| http://rhn.redhat.com/errata/RHSA-2012-0531.html | vendor-advisoryx_refsource_REDHAT | |
| http://sourceware.org/git/?p=glibc.git%3Ba=commitdiff%3Bh=7c1f4834d398163d1ac8101e35e9c36fc3176e6e | x_refsource_MISC | |
| http://sourceware.org/ml/libc-alpha/2012-02/msg00023.html | mailing-listx_refsource_MLISTExploit | |
| http://www.phrack.org/issues.html?issue=67&id=9#article | x_refsource_MISCExploit | |
| http://www.securityfocus.com/bid/52201 | vdb-entryx_refsource_BIDExploit | |
| https://access.redhat.com/security/cve/CVE-2012-0864 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=794766 | x_refsource_CONFIRMIssue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2012-0864 | ||
| https://www.cve.org/CVERecord?id=CVE-2012-0864 |
Change history (0)
No recorded changes yet.