libpng,libpng10: Zeroing value of an arbitrary memory location in utilities for writing PNG files
Published Jan 15, 2009
5.0
MEDIUMCVSS 2.0
EPSS 2.56%
Description
The png_check_keyword function in pngwutil.c in libpng before 1.0.42, and 1.2.x before 1.2.34, might allow context-dependent attackers to set the value of an arbitrary memory location to zero via vectors involving creation of crafted PNG files with keywords, related to an implicit cast of the '\0' character constant to a NULL pointer. NOTE: some sources incorrectly report this as a double free vulnerability.
Affected products
No data.
Configuration 1
Configuration 2
- 4.0
- 5.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat does not consider this bug to be a security issue. For a more detailed explanation, please see the following bug: https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2008-5907
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:L/Au:N/C:N/I:P/A:N
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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.56% (0.02558) | 84.53th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.56% (0.02558) | 82.99th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.58% (0.00580) | 66.98th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.72% (0.00717) | 81.19th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.72% (0.00717) | 79.92th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.72% (0.00717) | 77.48th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.54% (0.01537) | 74.52th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.54% (0.01537) | 74.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.54% (0.01537) | 72.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.54% (0.01537) | 51.33th | v2 (v2022.01.01) |
No CWE recorded.
References (14)
- http://libpng.sourceforge.net/index.html x_refsource_CONFIRMThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00000.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://openwall.com/lists/oss-security/2009/01/09/1 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://secunia.com/advisories/34320 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/34388 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://security.gentoo.org/glsa/glsa-200903-28.xml vendor-advisoryx_refsource_GENTOOThird Party Advisory
- http://sourceforge.net/mailarchive/forum.php?thread_name=4B6F0239C13D0245820603C036D180BC79FBAA%40CABOTUKEXCH01.cabot.local&forum_name=png-mng-implement mailing-listx_refsource_MLISTThird Party Advisory
- http://www.debian.org/security/2009/dsa-1750 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:051 vendor-advisoryx_refsource_MANDRIVAThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2008-5907 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=480321 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/48128 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
- https://nvd.nist.gov/vuln/detail/CVE-2008-5907
- https://www.cve.org/CVERecord?id=CVE-2008-5907
Change history (0)
No recorded changes yet.