php chunk_split integer overflow
Published Jun 4, 2007
6.8
MEDIUMCVSS 2.0
EPSS 8.88%
Description
Multiple integer overflows in the chunk_split function in PHP 5 before 5.2.3 and PHP 4 before 4.4.8 allow remote attackers to cause a denial of service (crash) or execute arbitrary code via the (1) chunks, (2) srclen, and (3) chunklen arguments.
Affected products
No data.
- ≤ 4.4.7
- 5.0.0
- 5.0.1
- 5.0.2
- 5.0.3
- 5.0.4
- 5.0.5
- 5.1.0
- 5.1.1
- 5.1.2
- 5.1.3
- 5.1.4
- 5.1.5
- 5.1.6
- 5.2.0
- 5.2.1
- 5.2.2
No data.
Red Hat Enterprise Linux 2.1
php-0:4.1.2-2.19
Fixed · RHSA-2007:0888
Red Hat Enterprise Linux 3
php-0:4.3.2-43.ent
Fixed · RHSA-2007:0889
Red Hat Enterprise Linux 4
php-0:4.3.9-3.22.9
Fixed · RHSA-2007:0890
Red Hat Enterprise Linux 5
php-0:5.1.6-15.el5
Fixed · RHSA-2007:0890
Red Hat Web Application Stack for RHEL 4
php-0:5.1.6-3.el4s1.8
Fixed · RHSA-2007:0891
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 2.1 | php-0:4.1.2-2.19 | Fixed | RHSA-2007:0888 |
| Red Hat Enterprise Linux 3 | php-0:4.3.2-43.ent | Fixed | RHSA-2007:0889 |
| Red Hat Enterprise Linux 4 | php-0:4.3.9-3.22.9 | Fixed | RHSA-2007:0890 |
| Red Hat Enterprise Linux 5 | php-0:5.1.6-15.el5 | Fixed | RHSA-2007:0890 |
| Red Hat Web Application Stack for RHEL 4 | php-0:5.1.6-3.el4s1.8 | Fixed | RHSA-2007:0891 |
No package ranges for this CVE.
Remediation
Red Hat statement
The Red Hat Product Security has rated this issue as having moderate security impact, a future update may address this flaw.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (24 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 8.88% (0.08878) | 95.07th | v5 (v2026.06.15) |
| Jun 15, 2026 | 8.88% (0.08878) | 94.53th | v5 (v2026.06.15) |
| May 28, 2026 | 25.24% (0.25241) | 96.28th | v4 (v2025.03.14) |
| May 7, 2026 | 23.20% (0.23201) | 95.97th | v4 (v2025.03.14) |
| Jan 21, 2026 | 21.05% (0.21049) | 95.47th | v4 (v2025.03.14) |
| Dec 28, 2025 | 18.35% (0.18346) | 95.00th | v4 (v2025.03.14) |
| Dec 27, 2025 | 17.13% (0.17125) | 94.81th | v4 (v2025.03.14) |
| Oct 28, 2025 | 18.35% (0.18346) | 94.93th | v4 (v2025.03.14) |
| Oct 27, 2025 | 17.13% (0.17125) | 94.73th | v4 (v2025.03.14) |
| Oct 10, 2025 | 18.35% (0.18346) | 94.89th | v4 (v2025.03.14) |
| Jul 30, 2025 | 17.13% (0.17125) | 94.72th | v4 (v2025.03.14) |
| Jun 29, 2025 | 12.65% (0.12654) | 93.63th | v4 (v2025.03.14) |
| Mar 30, 2025 | 14.04% (0.14037) | 93.74th | v4 (v2025.03.14) |
| Mar 29, 2025 | 20.39% (0.20387) | 92.73th | v4 (v2025.03.14) |
| Mar 17, 2025 | 14.04% (0.14037) | 93.82th | v4 (v2025.03.14) |
| Dec 17, 2024 | 25.87% (0.25872) | 96.71th | v3 (v2023.03.01) |
| Sep 7, 2024 | 34.96% (0.34958) | 97.19th | v3 (v2023.03.01) |
| Feb 29, 2024 | 25.82% (0.25825) | 96.57th | v3 (v2023.03.01) |
| Nov 6, 2023 | 33.23% (0.33226) | 96.56th | v3 (v2023.03.01) |
| Mar 7, 2023 | 38.38% (0.38377) | 96.56th | v3 (v2023.03.01) |
| Mar 6, 2023 | 49.15% (0.49148) | 98.65th | v2 (v2022.01.01) |
| Feb 13, 2023 | 49.15% (0.49148) | 98.64th | v2 (v2022.01.01) |
| Feb 3, 2023 | 15.27% (0.15272) | 95.79th | v2 (v2022.01.01) |
| Feb 4, 2022 | 49.15% (0.49148) | 98.17th | v2 (v2022.01.01) |
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Change history (0)
No recorded changes yet.