CVE-2013-4559: debian debian_linux
Vulnerability summary
CVE-2013-4559 is a high (CVSS 7.6) vulnerability in debian debian_linux. EPSS estimates a 10.72% chance of exploitation in the next 30 days, higher than 95.8% of scored vulnerabilities.
Not severe (CVSS 7.6, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 3 · Related 1Timeline
- 19-11-2013PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
10.72%
Chance of exploitation in the next 30 days
Percentile
96%
Versus all other CVEs
30-day change
No change 0.00 pp
From 10.72% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Debian2 products
- lighttpd< 1.4.33-1+nmu1
- debian_linuxEOL6.0 | 7.0 | 8.0
Lighttpd1 product
- lighttpd< 1.4.33
Opensuse1 product
- opensuseEOL12.2 | 12.3 | 13.1
Ubuntu1 product
- lighttpd< 1.4.33-1+nmu2ubuntu2
4 vendors · 5 products
References
12 links- marc.info?l=bugtraq&m=141576815022399&w=2Vendor AdvisoryX Refsource HPIssue TrackingThird Party Advisory
- download.lighttpd.net/lighttpd/security/lighttpd_sa_2013_02.txtX Refsource CONFIRMVendor AdvisoryREPORT
- lists.opensuse.org/opensuse-updates/2014-01/msg00049.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
