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glibc: svc_run() produces high cpu usage when accept() fails with EMFILE error

🗓️ 13 Feb 2012 20:30:00Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 2 Views

Gluing? No. Glibc's svc_run may cause high CPU when accept fails with EMFILE, enabling DoS via RPC connections.

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Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux4i386glibc0:2.3.4-2.57glibc-0:2.3.4-2.57.i386.rpm
Red Hat Enterprise Linux4i686glibc0:2.3.4-2.57glibc-0:2.3.4-2.57.i686.rpm
Red Hat Enterprise Linux4ia64glibc0:2.3.4-2.57glibc-0:2.3.4-2.57.ia64.rpm
Red Hat Enterprise Linux4ppcglibc0:2.3.4-2.57glibc-0:2.3.4-2.57.ppc.rpm
Red Hat Enterprise Linux4ppc64glibc0:2.3.4-2.57glibc-0:2.3.4-2.57.ppc64.rpm
Red Hat Enterprise Linux4s390glibc0:2.3.4-2.57glibc-0:2.3.4-2.57.s390.rpm
Red Hat Enterprise Linux4s390xglibc0:2.3.4-2.57glibc-0:2.3.4-2.57.s390x.rpm
Red Hat Enterprise Linux4x86_64glibc0:2.3.4-2.57glibc-0:2.3.4-2.57.x86_64.rpm
Red Hat Enterprise Linux4i386glibc-common0:2.3.4-2.57glibc-common-0:2.3.4-2.57.i386.rpm
Red Hat Enterprise Linux4ia64glibc-common0:2.3.4-2.57glibc-common-0:2.3.4-2.57.ia64.rpm
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28 Jan 2026 22:51Current
7.4High risk
Vulners AI Score7.4
CVSS 25
EPSS0.00474
2