optipng: Buffer overflow in global memory
Published Apr 20, 2016
5.5
MEDIUMCVSS 3.0
EPSS 1.56%
Description
gifread.c in gif2png, as used in OptiPNG before 0.7.6, allows remote attackers to cause a denial of service (uninitialized memory read) via a crafted GIF file.
Affected products
No data.
Configuration 1
- 0.7.5
Configuration 2
- 12.04
- 14.04
- 15.10
No data.
Red Hat Enterprise Linux 7
optipng
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | optipng | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
AV:N/AC:M/Au:N/C:N/I:N/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 (18 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.56% (0.01563) | 74.37th | v5 (v2026.06.15) |
| Sep 22, 2026 | 1.56% (0.01563) | 74.18th | v5 (v2026.06.15) |
| Sep 21, 2026 | 2.75% (0.02747) | 85.47th | v5 (v2026.06.15) |
| Sep 6, 2026 | 1.56% (0.01563) | 73.64th | v5 (v2026.06.15) |
| Sep 5, 2026 | 2.75% (0.02747) | 85.16th | v5 (v2026.06.15) |
| Aug 30, 2026 | 1.56% (0.01563) | 73.52th | v5 (v2026.06.15) |
| Aug 28, 2026 | 2.75% (0.02747) | 85.07th | v5 (v2026.06.15) |
| Aug 24, 2026 | 1.56% (0.01563) | 73.37th | v5 (v2026.06.15) |
| Aug 23, 2026 | 2.75% (0.02747) | 85.01th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.56% (0.01563) | 71.96th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.24% (0.00242) | 45.56th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.77% (0.00773) | 81.98th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.77% (0.00773) | 80.71th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.77% (0.00773) | 78.50th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.14% (0.01136) | 58.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.14% (0.01136) | 56.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
References (7)
- http://optipng.sourceforge.net/history.txt x_refsource_CONFIRMVendor Advisory
- http://www.ubuntu.com/usn/USN-2951-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2015-7802 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1265956 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2015-7802
- https://sourceforge.net/p/optipng/bugs/53/ x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2015-7802
| Link | Providers | Tags |
|---|---|---|
| http://optipng.sourceforge.net/history.txt | x_refsource_CONFIRMVendor Advisory | |
| http://www.ubuntu.com/usn/USN-2951-1 | vendor-advisoryx_refsource_UBUNTU | |
| https://access.redhat.com/security/cve/CVE-2015-7802 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1265956 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-7802 | ||
| https://sourceforge.net/p/optipng/bugs/53/ | x_refsource_CONFIRM | |
| https://www.cve.org/CVERecord?id=CVE-2015-7802 |
Change history (0)
No recorded changes yet.