HIGH
lighttpd before 1.4.33 does not check the return value of the (1) setuid, (2) setgid, or (3) setgroups functions, which might cause lighttpd to run as root if it is restarted and allows remote attackers to gain privileges, as demonstrated by multiple calls to the clone function that cause setuid to fail when the user process limit is reached
Published Nov 19, 2013
7.6
HIGHCVSS 2.0
EPSS 10.72%
Description
lighttpd before 1.4.33 does not check the return value of the (1) setuid, (2) setgid, or (3) setgroups functions, which might cause lighttpd to run as root if it is restarted and allows remote attackers to gain privileges, as demonstrated by multiple calls to the clone function that cause setuid to fail when the user process limit is reached.
Affected products
No data.
Configuration 2
OR
- 6.0
- 7.0
- 8.0
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.
7.6 HIGH NVD
AV:N/AC:H/Au:N/C:C/I:C/A:C
Access Vector Network
Access Complexity High
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
10.72% 0.10721
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.10721
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 (49 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 10.72% (0.10721) | 95.69th | v5 (v2026.06.15) |
| Jun 15, 2026 | 10.72% (0.10721) | 95.24th | v5 (v2026.06.15) |
| Apr 11, 2026 | 9.52% (0.09523) | 92.84th | v4 (v2025.03.14) |
| Mar 4, 2026 | 13.98% (0.13983) | 94.19th | v4 (v2025.03.14) |
| Mar 1, 2026 | 10.01% (0.10008) | 92.95th | v4 (v2025.03.14) |
| Feb 4, 2026 | 13.98% (0.13983) | 94.15th | v4 (v2025.03.14) |
| Feb 1, 2026 | 10.01% (0.10008) | 92.90th | v4 (v2025.03.14) |
| Jan 4, 2026 | 13.98% (0.13983) | 94.11th | v4 (v2025.03.14) |
| Jan 1, 2026 | 10.01% (0.10008) | 92.86th | v4 (v2025.03.14) |
| Dec 28, 2025 | 13.98% (0.13983) | 94.11th | v4 (v2025.03.14) |
| Dec 27, 2025 | 8.87% (0.08865) | 92.31th | v4 (v2025.03.14) |
| Dec 4, 2025 | 13.98% (0.13983) | 94.06th | v4 (v2025.03.14) |
| Dec 1, 2025 | 10.01% (0.10008) | 92.81th | v4 (v2025.03.14) |
| Nov 4, 2025 | 13.98% (0.13983) | 94.03th | v4 (v2025.03.14) |
| Nov 1, 2025 | 10.01% (0.10008) | 92.76th | v4 (v2025.03.14) |
| Oct 28, 2025 | 13.98% (0.13983) | 94.02th | v4 (v2025.03.14) |
| Oct 27, 2025 | 8.87% (0.08865) | 92.20th | v4 (v2025.03.14) |
| Oct 4, 2025 | 13.98% (0.13983) | 94.08th | v4 (v2025.03.14) |
| Oct 1, 2025 | 10.01% (0.10008) | 92.81th | v4 (v2025.03.14) |
| Sep 4, 2025 | 8.87% (0.08865) | 92.24th | v4 (v2025.03.14) |
| Sep 1, 2025 | 5.32% (0.05317) | 89.72th | v4 (v2025.03.14) |
| Aug 4, 2025 | 8.87% (0.08865) | 92.17th | v4 (v2025.03.14) |
| Aug 1, 2025 | 5.32% (0.05317) | 89.73th | v4 (v2025.03.14) |
| Jul 30, 2025 | 8.87% (0.08865) | 92.17th | v4 (v2025.03.14) |
| Jul 5, 2025 | 13.98% (0.13983) | 94.00th | v4 (v2025.03.14) |
| Jul 1, 2025 | 8.93% (0.08932) | 92.22th | v4 (v2025.03.14) |
| Jun 15, 2025 | 12.55% (0.12554) | 93.58th | v4 (v2025.03.14) |
| Jun 4, 2025 | 10.09% (0.10090) | 92.68th | v4 (v2025.03.14) |
| Jun 1, 2025 | 7.11% (0.07105) | 91.07th | v4 (v2025.03.14) |
| May 4, 2025 | 10.09% (0.10090) | 92.65th | v4 (v2025.03.14) |
| May 1, 2025 | 7.11% (0.07105) | 91.07th | v4 (v2025.03.14) |
| Apr 13, 2025 | 10.09% (0.10090) | 92.38th | v4 (v2025.03.14) |
| Apr 12, 2025 | 7.11% (0.07105) | 90.73th | v4 (v2025.03.14) |
| Apr 7, 2025 | 10.09% (0.10090) | 92.38th | v4 (v2025.03.14) |
| Apr 6, 2025 | 7.11% (0.07105) | 90.70th | v4 (v2025.03.14) |
| Mar 27, 2025 | 10.09% (0.10090) | 91.97th | v4 (v2025.03.14) |
| Mar 26, 2025 | 7.11% (0.07105) | 90.60th | v4 (v2025.03.14) |
| Mar 19, 2025 | 10.09% (0.10090) | 92.11th | v4 (v2025.03.14) |
| Mar 18, 2025 | 7.28% (0.07281) | 91.03th | v4 (v2025.03.14) |
| Mar 17, 2025 | 10.33% (0.10329) | 92.62th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.04% (0.01038) | 84.60th | v3 (v2023.03.01) |
| May 22, 2024 | 1.04% (0.01038) | 83.91th | v3 (v2023.03.01) |
| Jul 2, 2023 | 1.04% (0.01038) | 81.88th | v3 (v2023.03.01) |
| May 16, 2023 | 1.19% (0.01187) | 83.04th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.18% (0.01179) | 82.82th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.41% (0.01408) | 72.89th | v2 (v2022.01.01) |
| Mar 2, 2023 | 1.41% (0.01408) | 72.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.41% (0.01408) | 70.87th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.41% (0.01408) | 49.94th | v2 (v2022.01.01) |
Weaknesses (1)
References (8)
- http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2013_02.txt x_refsource_CONFIRMVendor Advisory
- http://jvn.jp/en/jp/JVN37417423/index.html third-party-advisoryx_refsource_JVNThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00049.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://marc.info/?l=bugtraq&m=141576815022399&w=2 vendor-advisoryx_refsource_HPIssue TrackingThird Party Advisory
- http://secunia.com/advisories/55682 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://www.openwall.com/lists/oss-security/2013/11/12/4 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://kc.mcafee.com/corporate/index?page=content&id=SB10310 x_refsource_CONFIRMThird Party Advisory
- https://www.debian.org/security/2013/dsa-2795 vendor-advisoryx_refsource_DEBIANThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2013_02.txt | x_refsource_CONFIRMVendor Advisory | |
| http://jvn.jp/en/jp/JVN37417423/index.html | third-party-advisoryx_refsource_JVNThird Party Advisory | |
| http://lists.opensuse.org/opensuse-updates/2014-01/msg00049.html | vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory | |
| http://marc.info/?l=bugtraq&m=141576815022399&w=2 | vendor-advisoryx_refsource_HPIssue TrackingThird Party Advisory | |
| http://secunia.com/advisories/55682 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2013/11/12/4 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://kc.mcafee.com/corporate/index?page=content&id=SB10310 | x_refsource_CONFIRMThird Party Advisory | |
| https://www.debian.org/security/2013/dsa-2795 | vendor-advisoryx_refsource_DEBIANThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Nov 19, 2013
Updated Aug 6, 2024
Reserved Jun 12, 2013
Link CVE-2013-4559
CISA Vulnrichment
Updated n/a