CVE-2013-4559
HIGH · CVSS 7.6EPSS 10.7%EU EUVD
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.
Key facts
- CVSS score
- 7.6 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:N/AC:H/Au:N/C:C/I:C/A:C- Weakness (CWE)
- CWE-264
- EPSS score
- 10.7% (96th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2013-4418)
- Published
- November 20, 2013
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2013-4418 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- debian / debian linux
- debian / debian linux
- debian / debian linux
- lighttpd / lighttpd
- opensuse / opensuse
- opensuse / opensuse
- opensuse / opensuse
References
- http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2013_02.txt(Vendor Advisory)
- http://jvn.jp/en/jp/JVN37417423/index.html(Third Party Advisory)
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00049.html(Mailing List, Third Party Advisory)
- http://marc.info/?l=bugtraq&m=141576815022399&w=2(Issue Tracking, Third Party Advisory)
- http://secunia.com/advisories/55682(Third Party Advisory)
- http://www.openwall.com/lists/oss-security/2013/11/12/4(Mailing List, Third Party Advisory)
- https://kc.mcafee.com/corporate/index?page=content&id=SB10310(Third Party Advisory)
- https://www.debian.org/security/2013/dsa-2795(Third Party Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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