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CVE-2003-0689

20
FAUCET Score

CVE-2003-0689 describes a buffer overflow vulnerability in the getgrouplist function of GNU glibc 2.2.4 and earlier, specifically impacting Red Hat Enterprise Linux. This flaw allows remote attackers to trigger a denial of service (segmentation fault) and potentially execute arbitrary code if a user belongs to an excessive number of groups. With a CVSS score of 7.5, it represents a high severity risk due to its network-based attack vector and potential for complete compromise of confidentiality, integrity, and availability. Despite its age and severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2.1CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:2.1:*:advanced_server:*:*:*:*:*
2.1CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:2.1:*:advanced_server_ia64:*:*:*:*:*
2.1CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:2.1:*:enterprise_server:*:*:*:*:*
2.1CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:2.1:*:enterprise_server_ia64:*:*:*:*:*
2.1CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:2.1:*:workstation:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.18%
Probability of exploitation in next 30 days
EPSS Percentile
80.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0218 is in the 65th percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (9)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux AS (Advanced Server) version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux ES version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux WS version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 8.0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux Advanced Workstation 2.1
View patch

Vendor Advisories (1)

redhatCVE-2003-0689Important

security flaw

Apr 1, 2003

References

redhat.com / support/errata/RHSA-2003-249.html
PatchVendor Advisory
redhat.com / support/errata/RHSA-2003-325.html