lib/logmatcher.c in Balabit syslog-ng before 3.2.4, when the global flag is set and when using PCRE 8.12 and possibly other versions, allows remote attackers to cause a denial of service (memory consumption) via a message that does not match a regular expression
Published Jul 11, 2011
4.3
MEDIUMCVSS 2.0
EPSS 2.46%
Description
lib/logmatcher.c in Balabit syslog-ng before 3.2.4, when the global flag is set and when using PCRE 8.12 and possibly other versions, allows remote attackers to cause a denial of service (memory consumption) via a message that does not match a regular expression.
Affected products
No data.
- < 3.2.4
No data.
No Red Hat product state for this CVE.
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:N/I:N/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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.46% (0.02462) | 83.88th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.46% (0.02462) | 82.31th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.55% (0.01548) | 80.13th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.26% (0.01261) | 86.20th | v3 (v2023.03.01) |
| May 3, 2024 | 1.26% (0.01261) | 85.50th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.26% (0.01261) | 83.46th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
References (6)
- http://git.balabit.hu/?p=bazsi/syslog-ng-3.2.git%3Ba=commit%3Bh=09710c0b105e579d35c7b5f6c66d1ea5e3a3d3ff x_refsource_CONFIRM
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062107.html vendor-advisoryx_refsource_FEDORAMailing ListThird Party Advisory
- http://secunia.com/advisories/45122 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://www.openwall.com/lists/oss-security/2011/05/26/1 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/47800 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=709088 x_refsource_MISCIssue TrackingPatchThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://git.balabit.hu/?p=bazsi/syslog-ng-3.2.git%3Ba=commit%3Bh=09710c0b105e579d35c7b5f6c66d1ea5e3a3d3ff | x_refsource_CONFIRM | |
| http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062107.html | vendor-advisoryx_refsource_FEDORAMailing ListThird Party Advisory | |
| http://secunia.com/advisories/45122 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2011/05/26/1 | mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory | |
| http://www.securityfocus.com/bid/47800 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://bugzilla.redhat.com/show_bug.cgi?id=709088 | x_refsource_MISCIssue TrackingPatchThird Party Advisory |
Change history (0)
No recorded changes yet.