optipng: memory re-allocation flaw in GIF reader
Published Mar 2, 2009
7.8
HIGHCVSS 3.1
EPSS 1.55%
Description
Use-after-free vulnerability in the GIFReadNextExtension function in lib/pngxtern/gif/gifread.c in OptiPNG 0.6.2 and earlier allows context-dependent attackers to cause a denial of service (application crash) via a crafted GIF image that causes the realloc function to return a new pointer, which triggers memory corruption when the old pointer is accessed.
Affected products
No data.
Configuration 1
- ≤ 0.6.2
Configuration 2
- ≥ 10.3 · ≤ 11.1
- 9-11
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:C/I:C/A:C
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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.55% (0.01553) | 74.23th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.55% (0.01553) | 71.83th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.19% (0.00193) | 39.16th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.21% (0.00206) | 59.48th | v3 (v2023.03.01) |
| Feb 3, 2024 | 0.21% (0.00206) | 58.60th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.31% (0.00308) | 65.16th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.69% (0.02686) | 81.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.69% (0.02686) | 62.66th | v2 (v2022.01.01) |
References (18)
- http://lists.opensuse.org/opensuse-security-announce/2009-03/msg00001.html vendor-advisoryx_refsource_SUSEMailing List
- http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html vendor-advisoryx_refsource_SUSEMailing List
- http://optipng.sourceforge.net x_refsource_CONFIRMProduct
- http://secunia.com/advisories/34035 third-party-advisoryx_refsource_SECUNIABroken LinkVendor Advisory
- http://secunia.com/advisories/34201 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/34259 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/35685 third-party-advisoryx_refsource_SECUNIABroken Link
- http://sourceforge.net/tracker/index.php?func=detail&aid=2582013&group_id=151404&atid=780913 x_refsource_CONFIRMIssue Tracking
- http://www.gentoo.org/security/en/glsa/glsa-200903-12.xml vendor-advisoryx_refsource_GENTOOThird Party Advisory
- http://www.openwall.com/lists/oss-security/2009/02/24/2 mailing-listx_refsource_MLISTMailing List
- http://www.openwall.com/lists/oss-security/2009/02/25/4 mailing-listx_refsource_MLISTMailing List
- http://www.securityfocus.com/bid/33873 vdb-entryx_refsource_BIDBroken LinkPatchThird Party AdvisoryVDB Entry
- http://www.vupen.com/english/advisories/2009/0510 vdb-entryx_refsource_VUPENBroken LinkPatchVendor Advisory
- https://access.redhat.com/security/cve/CVE-2009-0749 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=487364 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/48879 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
- https://nvd.nist.gov/vuln/detail/CVE-2009-0749
- https://www.cve.org/CVERecord?id=CVE-2009-0749
Change history (0)
No recorded changes yet.