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NVD / CVE Program· CNA redhat

CVE-2011-4609: The svc_run function in the RPC implementation in glibc before 2.15 allows remote attackers to cause a denial of service (CPU consumption)…

MediumCVSS 5.0 · v2.0—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 21/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 1.8% (FIRST EPSS); higher than 79.2% of all records.
  • No special conditions are required; it is repeatable.
  • Fixed version: glibc (Red Hat:enterprise_linux:4::as) 0:2.3.4-2.57; glibc-common (Red Hat:enterprise_linux:4::as) 0:2.3.4-2.57; glibc-debuginfo (Red Hat:enterprise_linux:4::as) 0:2.3.4-2.57.

Low priority for now. Upgrade to glibc (Red Hat:enterprise_linux:4::as) 0:2.3.4-2.57; glibc-common (Red Hat:enterprise_linux:4::as) 0:2.3.4-2.57; glibc-debuginfo (Red Hat:enterprise_linux:4::as) 0:2.3.4-2.57 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

The svc_run function in the RPC implementation in glibc before 2.15 allows remote attackers to cause a denial of service (CPU consumption) via a large number of RPC connections.

Published
May 2, 2013
Updated
Jun 16, 2026
EPSS
1.8% · 79th percentile

Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
20 / 40 · 5.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 1.8%

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  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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Noroxi analysis

What does it mean in your environment?

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
gnuglibc

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • gnu glibcup to 2.14 inclusive
  • gnu glibc2.0
  • gnu glibc2.0.1
  • gnu glibc2.0.2
  • gnu glibc2.0.3
  • gnu glibc2.0.4
  • gnu glibc2.0.5
  • gnu glibc2.0.6
+7 more rows
  • gnu glibc2.1
  • gnu glibc2.1.1
  • gnu glibc2.1.1.6
  • gnu glibc2.1.2
  • gnu glibc2.1.3
  • gnu glibc2.1.9
  • gnu glibc2.13

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Red Hat:enterprise_linux:4::asglibcbefore 0:2.3.4-2.570:2.3.4-2.57
Red Hat:enterprise_linux:4::asglibc-commonbefore 0:2.3.4-2.570:2.3.4-2.57
Red Hat:enterprise_linux:4::asglibc-debuginfobefore 0:2.3.4-2.570:2.3.4-2.57
Red Hat:enterprise_linux:4::asglibc-debuginfo-commonbefore 0:2.3.4-2.570:2.3.4-2.57
Red Hat:enterprise_linux:4::asglibc-develbefore 0:2.3.4-2.570:2.3.4-2.57
Red Hat:enterprise_linux:4::asglibc-headersbefore 0:2.3.4-2.570:2.3.4-2.57
Red Hat:enterprise_linux:4::asglibc-profilebefore 0:2.3.4-2.570:2.3.4-2.57
Red Hat:enterprise_linux:4::asglibc-utilsbefore 0:2.3.4-2.570:2.3.4-2.57
Red Hat:enterprise_linux:4::asnptl-develbefore 0:2.3.4-2.570:2.3.4-2.57
Red Hat:enterprise_linux:4::asnscdbefore 0:2.3.4-2.570:2.3.4-2.57
Red Hat:enterprise_linux:5::clientglibcbefore 0:2.5-65.el5_7.30:2.5-65.el5_7.3
Red Hat:enterprise_linux:5::clientglibc-commonbefore 0:2.5-65.el5_7.30:2.5-65.el5_7.3
Red Hat:enterprise_linux:5::clientglibc-debuginfobefore 0:2.5-65.el5_7.30:2.5-65.el5_7.3
Red Hat:enterprise_linux:5::clientglibc-debuginfo-commonbefore 0:2.5-65.el5_7.30:2.5-65.el5_7.3
Red Hat:enterprise_linux:5::clientglibc-develbefore 0:2.5-65.el5_7.30:2.5-65.el5_7.3
Red Hat:enterprise_linux:5::clientglibc-headersbefore 0:2.5-65.el5_7.30:2.5-65.el5_7.3
Red Hat:enterprise_linux:5::clientglibc-utilsbefore 0:2.5-65.el5_7.30:2.5-65.el5_7.3
Red Hat:enterprise_linux:5::clientnscdbefore 0:2.5-65.el5_7.30:2.5-65.el5_7.3
Red Hat:enterprise_linux:6::clientglibcbefore 0:2.12-1.47.el6_2.50:2.12-1.47.el6_2.5
Red Hat:enterprise_linux:6::clientglibc-commonbefore 0:2.12-1.47.el6_2.50:2.12-1.47.el6_2.5
Red Hat:enterprise_linux:6::clientglibc-debuginfobefore 0:2.12-1.47.el6_2.50:2.12-1.47.el6_2.5
Red Hat:enterprise_linux:6::clientglibc-debuginfo-commonbefore 0:2.12-1.47.el6_2.50:2.12-1.47.el6_2.5
Red Hat:enterprise_linux:6::clientglibc-develbefore 0:2.12-1.47.el6_2.50:2.12-1.47.el6_2.5
Red Hat:enterprise_linux:6::clientglibc-headersbefore 0:2.12-1.47.el6_2.50:2.12-1.47.el6_2.5

+3

Same product

gnu: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-4911Glibc: buffer overflow in ld.so leading to privilege escalationKEV
    80Now
  • CVE-2015-0235Heap-based buffer overflow in the __nss_hostname_digits_dots function in glibc 2.2, and other 2.x versions before 2.18, allows…
    68This week
  • CVE-2015-7547Multiple stack-based buffer overflows in the (1) send_dg and (2) send_vc functions in the libresolv library in the GNU C Library (aka glibc…
    60This week

Published before and after this one in the same product

  • ← EarlierCVE-2013-1914Apr 29, 2013 · Stack-based buffer overflow in the getaddrinfo function in sysdeps/posix/getaddrinfo.c in GNU C Library (aka glibc or libc6) 2.17 and…
    21Monitor
  • ← EarlierCVE-2009-5029May 2, 2013 · Integer overflow in the __tzfile_read function in glibc before 2.15 allows context-dependent attackers to cause a denial of service (crash)…
    30Monitor
  • Later →CVE-2012-0864May 2, 2013 · Integer overflow in the vfprintf function in stdio-common/vfprintf.c in glibc 2.14 and other versions allows context-dependent attackers to…
    28Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
red hat:glibc0:2.12-1.47.el6_2.5 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:glibc-common0:2.12-1.47.el6_2.5 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:glibc-debuginfo0:2.12-1.47.el6_2.5 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:glibc-debuginfo-common0:2.12-1.47.el6_2.5 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:glibc-devel0:2.12-1.47.el6_2.5 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:glibc-headers0:2.12-1.47.el6_2.5 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:glibc-profile0:2.3.4-2.57 · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:glibc-static0:2.12-1.47.el6_2.5 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:glibc-utils0:2.12-1.47.el6_2.5 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:nptl-devel0:2.3.4-2.57 · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:nscd0:2.12-1.47.el6_2.5 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
P · the service can be disrupted
Attack complexity
Low
Confidentiality impact
None
Integrity impact
None
Availability impact
P

Weakness class (CWE)

CWE-399 · Resource Management Errors

CVSS vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records