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TI-2010-03676 Aliases CVE-2010-3870GHSA-gvvf-r2h9-2v8x

The utf8_decode function in PHP before 5.3.4 does not properly handle non-shortest form…

Priority MEDIUM 43CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Medium
Impact type
—
Confidentiality · integrity · availability
Partial · Partial · Partial
Fix status
Partial Red Hat: 12 fixed, 1 without a fix

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.

Summary

The utf8_decode function in PHP before 5.3.4 does not properly handle non-shortest form UTF-8 encoding and ill-formed subsequences in UTF-8 data, which makes it easier for remote attackers to bypass cross-site scripting (XSS) and SQL injection protection mechanisms via a crafted string.

Why it matters now

EPSS 0.11281 95th percentileScored 2026-11-07
Public exploit Yes 6 exploit referencesTagged by NVD
Fix Partial Red Hat: 2 advisoriesRed Hat: 12 fixed, 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*before 5.2.14; 5.3.0 to before 5.3.4VulnerablePHP
cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:*6.06VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:*8.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:9.10:*:*:*:*:*:*:*9.10VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*10.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:*10.10VulnerableCanonical
  • cpe:2.3:a:php:php:*:*:*:*:*:*:*:* Versions before 5.2.14; 5.3.0 to before 5.3.4 Vulnerable ·PHP
  • cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:* Versions 6.06 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:* Versions 8.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:9.10:*:*:*:*:*:*:* Versions 9.10 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:* Versions 10.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:* Versions 10.10 Vulnerable ·Canonical

Remediation

Red Hat 2 advisories

  • RHSA-2011:0195 Released 2011-02-03 · Red Hat rating Moderate
    php security update
    • Red Hat Enterprise Linux Desktop Optional (v. 6) php-5.3.2-6.el6_0.1, php-bcmath-5.3.2-6.el6_0.1, php-cli-5.3.2-6.el6_0.1 +23
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) php-5.3.2-6.el6_0.1, php-bcmath-5.3.2-6.el6_0.1, php-cli-5.3.2-6.el6_0.1 +23
    • Red Hat Enterprise Linux Server (v. 6) php-5.3.2-6.el6_0.1, php-cli-5.3.2-6.el6_0.1, php-common-5.3.2-6.el6_0.1 +9
    • Red Hat Enterprise Linux Server Optional (v. 6) php-5.3.2-6.el6_0.1, php-bcmath-5.3.2-6.el6_0.1, php-dba-5.3.2-6.el6_0.1 +12
    • Red Hat Enterprise Linux Workstation (v. 6) php-5.3.2-6.el6_0.1, php-cli-5.3.2-6.el6_0.1, php-common-5.3.2-6.el6_0.1 +9
    • Red Hat Enterprise Linux Workstation Optional (v. 6) php-5.3.2-6.el6_0.1, php-bcmath-5.3.2-6.el6_0.1, php-dba-5.3.2-6.el6_0.1 +12
  • RHSA-2010:0919 Released 2010-11-29 · Red Hat rating Moderate
    php security update
    • Red Hat Enterprise Linux (v. 5 server) php-5.1.6-27.el5_5.3, php-5.1.6-27.el5_5.3.i386, php-5.1.6-27.el5_5.3.ia64 +47
    • Red Hat Enterprise Linux AS version 4 php-4.3.9-3.31, php-4.3.9-3.31.i386, php-4.3.9-3.31.ia64 +47
    • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) php-5.1.6-27.el5_5.3, php-5.1.6-27.el5_5.3.i386, php-bcmath-5.1.6-27.el5_5.3 +35
    • Red Hat Enterprise Linux Desktop version 4 php-4.3.9-3.31, php-4.3.9-3.31.i386, php-devel-4.3.9-3.31 +25
    • Red Hat Enterprise Linux ES version 4 php-4.3.9-3.31, php-4.3.9-3.31.i386, php-4.3.9-3.31.ia64 +39
    • Red Hat Enterprise Linux WS version 4 php-4.3.9-3.31, php-4.3.9-3.31.i386, php-4.3.9-3.31.ia64 +39

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix yet
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2010:0919
Red Hat Enterprise Linux AS version 4Fixed RHSA-2010:0919
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2011:0195
Red Hat Enterprise Linux Desktop Workstation (v. 5 client)Fixed RHSA-2010:0919
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2010:0919
Red Hat Enterprise Linux ES version 4Fixed RHSA-2010:0919
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2011:0195
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2011:0195
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2011:0195
Red Hat Enterprise Linux WS version 4Fixed RHSA-2010:0919
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2011:0195
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2011:0195

Timeline

  1. 2026-10-02 Threatist record created from CVE-2010-3870
  2. 2026-10-03 Alias added: GHSA-gvvf-r2h9-2v8x

References

Exploit 6

Patch 1

Advisory 22

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences