MEDIUM
Buffer overflow in the trash buffer in the header capture functionality in HAProxy before 1.4.21, when global.tune.bufsize is set to a value greater than the default and header rewriting is enabled, allows remote attackers to cause a denial of service and possibly execute arbitrary code via unspecified vectors
Published May 27, 2012
5.1
MEDIUMCVSS 2.0
EPSS 5.35%
Description
Buffer overflow in the trash buffer in the header capture functionality in HAProxy before 1.4.21, when global.tune.bufsize is set to a value greater than the default and header rewriting is enabled, allows remote attackers to cause a denial of service and possibly execute arbitrary code via unspecified vectors.
Affected products
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.
5.1 MEDIUM NVD
AV:N/AC:H/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity High
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
5.35% 0.05353
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.05353
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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.35% (0.05353) | 92.38th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.41% (0.05413) | 91.64th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.21% (0.00209) | 41.27th | v4 (v2025.03.14) |
| Jan 15, 2025 | 13.76% (0.13764) | 95.65th | v3 (v2023.03.01) |
| Nov 25, 2024 | 11.78% (0.11782) | 95.52th | v3 (v2023.03.01) |
| Jun 15, 2024 | 10.48% (0.10477) | 95.02th | v3 (v2023.03.01) |
| Dec 26, 2023 | 10.15% (0.10155) | 94.37th | v3 (v2023.03.01) |
| Mar 7, 2023 | 8.93% (0.08930) | 93.57th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.54% (0.07544) | 92.83th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.54% (0.07544) | 92.13th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.54% (0.07544) | 81.06th | v2 (v2022.01.01) |
Weaknesses (1)
References (12)
- http://haproxy.1wt.eu/#news x_refsource_CONFIRM
- http://haproxy.1wt.eu/download/1.4/src/CHANGELOG x_refsource_CONFIRM
- http://haproxy.1wt.eu/git?p=haproxy-1.4.git%3Ba=commit%3Bh=30297cb17147a8d339eb160226bcc08c91d9530b x_refsource_CONFIRM
- http://secunia.com/advisories/49261 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://security.gentoo.org/glsa/glsa-201301-02.xml vendor-advisoryx_refsource_GENTOO
- http://www.debian.org/security/2013/dsa-2711 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2012/05/23/12 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2012/05/23/15 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2012/05/28/1 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/53647 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-1800-1 vendor-advisoryx_refsource_UBUNTU
- https://exchange.xforce.ibmcloud.com/vulnerabilities/75777 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://haproxy.1wt.eu/#news | x_refsource_CONFIRM | |
| http://haproxy.1wt.eu/download/1.4/src/CHANGELOG | x_refsource_CONFIRM | |
| http://haproxy.1wt.eu/git?p=haproxy-1.4.git%3Ba=commit%3Bh=30297cb17147a8d339eb160226bcc08c91d9530b | x_refsource_CONFIRM | |
| http://secunia.com/advisories/49261 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://security.gentoo.org/glsa/glsa-201301-02.xml | vendor-advisoryx_refsource_GENTOO | |
| http://www.debian.org/security/2013/dsa-2711 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.openwall.com/lists/oss-security/2012/05/23/12 | mailing-listx_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2012/05/23/15 | mailing-listx_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2012/05/28/1 | mailing-listx_refsource_MLIST | |
| http://www.securityfocus.com/bid/53647 | vdb-entryx_refsource_BID | |
| http://www.ubuntu.com/usn/USN-1800-1 | vendor-advisoryx_refsource_UBUNTU | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/75777 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published May 27, 2012
Updated Aug 6, 2024
Reserved May 27, 2012
Link CVE-2012-2942
CISA Vulnrichment
Updated n/a