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Fencer Intel
medium 6.8

CVE-2010-0734 json

content_encoding.c in libcurl 7.10.5 through 7.19.7, when zlib is enabled, does not properly restrict the amount of callback data sent to a…

published 2010-03-19 16 y ago modified 2026-06-16 4 mo ago also EUVD-2010-0760

cvss
6.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.6%
EPSS 3.6% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known

Summary

content_encoding.c in libcurl 7.10.5 through 7.19.7, when zlib is enabled, does not properly restrict the amount of callback data sent to an application that requests automatic decompression, which might allow remote attackers to cause a denial of service (application crash) or have unspecified other impact by sending crafted compressed data to an application that relies on the intended data-length limit.

Patch / fix

  • curl Debian 14, Debian 13, Debian 12 7.20.0-1

debian advisories DEBIAN-CVE-2010-0734

  • curl RHEL 3 7.10.6-11.rhel3
  • curl RHEL 4 7.12.1-11.1.el4_8.3
  • curl RHEL 5 7.15.5-9.el5

red hat advisories RHSA-2010:0329RHSA-2010:0273

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-2010-0734 updated cvss 5.1

curl: zlib-compression causes curl to pass more than CURL_MAX_WRITE_SIZE bytes to write callback

  • Red Hat Desktop version 3 curl 7.10.6-11.rhel3
    fixed: vendor fix RHSA-2010:0329
  • Red Hat Enterprise Linux (v. 5 server) curl 7.15.5-9.el5
    fixed: vendor fix RHSA-2010:0273
  • Red Hat Enterprise Linux AS version 3 curl 7.10.6-11.rhel3 Red Hat Enterprise Linux AS version 4 curl 7.12.1-11.1.el4_8.3
    fixed: vendor fix RHSA-2010:0329
  • Red Hat Enterprise Linux Desktop (v. 5 client) curl 7.15.5-9.el5
    fixed: vendor fix RHSA-2010:0273
  • Red Hat Enterprise Linux Desktop version 4 curl 7.12.1-11.1.el4_8.3
    fixed: vendor fix RHSA-2010:0329
  • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) curl 7.15.5-9.el5
    fixed: vendor fix RHSA-2010:0273
  • Red Hat Enterprise Linux ES version 3 curl 7.10.6-11.rhel3 Red Hat Enterprise Linux ES version 4 curl 7.12.1-11.1.el4_8.3 Red Hat Enterprise Linux WS version 3 curl 7.10.6-11.rhel3 Red Hat Enterprise Linux WS version 4 curl 7.12.1-11.1.el4_8.3
    fixed: vendor fix RHSA-2010:0329

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

3.64% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls

References

Sources

Fencer Intel 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.