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Fencer Vulns
high 8.8

CVE-2005-0490 json

Multiple stack-based buffer overflows in libcURL and cURL 7.12.1, and possibly other versions, allow remote malicious web servers to execut…

published 2005-02-21 21 y ago modified 2026-06-16 4 mo ago also EUVD-2005-0491

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.7%
EPSS 5.7% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

Multiple stack-based buffer overflows in libcURL and cURL 7.12.1, and possibly other versions, allow remote malicious web servers to execute arbitrary code via base64 encoded replies that exceed the intended buffer lengths when decoded, which is not properly handled by (1) the Curl_input_ntlm function in http_ntlm.c during NTLM authentication or (2) the Curl_krb_kauth and krb4_auth functions in krb4.c during Kerberos authentication.

Patch / fix

  • curl Debian 14, Debian 13, Debian 12 7.13.0-2

debian advisories DEBIAN-CVE-2005-0490

  • curl RHEL 3 7.10.6-6.rhel3
  • curl RHEL 4 7.12.1-5.rhel4

red hat advisories RHSA-2005:340

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2005-0490 updated

security flaw

  • Red Hat Desktop version 3 curl 7.10.6-6.rhel3 Red Hat Enterprise Linux AS version 3 curl 7.10.6-6.rhel3 Red Hat Enterprise Linux AS version 4 curl 7.12.1-5.rhel4 Red Hat Enterprise Linux Desktop version 4 curl 7.12.1-5.rhel4 Red Hat Enterprise Linux ES version 3 curl 7.10.6-6.rhel3 Red Hat Enterprise Linux ES version 4 curl 7.12.1-5.rhel4
    +2 more products
    Red Hat Enterprise Linux WS version 3 curl 7.10.6-6.rhel3 Red Hat Enterprise Linux WS version 4 curl 7.12.1-5.rhel4
    fixed: vendor fix RHSA-2005:340

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

5.73% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 5.1 AV:N/AC:H/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-131 Incorrect Calculation of Buffer Size

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.