HOME VULNERABILITIESCVE-2008-5907

MEDIUM

CVE-2008-5907

NVD-CWE-noinfoPublished: January 15, 2009· Updated: Jun 16, 2026

5.0

CVSS v3.1

Official 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.

Technical Analysis

CVE-2008-5907 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.

User Interaction

Scope

Impact

ConfidentialityNone

IntegrityP

AvailabilityNone

AV:N/AC:L/Au:N/C:N/I:P/A:N

Affected Vendors & Products

Debian1 product(s)

debian linux

libpng1 product(s)

libpng

Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://libpng.sourceforge.net/index.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2009-02/msg00000.html

ADVISORYhttp://openwall.com/lists/oss-security/2009/01/09/1

ADVISORYhttp://secunia.com/advisories/34320

ADVISORYhttp://secunia.com/advisories/34388

ADVISORYhttp://security.gentoo.org/glsa/glsa-200903-28.xml

ADVISORYhttp://sourceforge.net/mailarchive/forum.php?thread_name=4B6F0239C13D0245820603C036D180BC79FBAA%40CABOTUKEXCH01.cabot.local&forum_name=png-mng-implement

ADVISORYhttp://www.debian.org/security/2009/dsa-1750

ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2009:051

ADVISORYhttps://exchange.xforce.ibmcloud.com/vulnerabilities/48128

ADVISORYhttp://libpng.sourceforge.net/index.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2009-02/msg00000.html

ADVISORYhttp://openwall.com/lists/oss-security/2009/01/09/1

ADVISORYhttp://secunia.com/advisories/34320

ADVISORYhttp://secunia.com/advisories/34388

ADVISORYhttp://security.gentoo.org/glsa/glsa-200903-28.xml

ADVISORYhttp://sourceforge.net/mailarchive/forum.php?thread_name=4B6F0239C13D0245820603C036D180BC79FBAA%40CABOTUKEXCH01.cabot.local&forum_name=png-mng-implement

ADVISORYhttp://www.debian.org/security/2009/dsa-1750

ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2009:051

ADVISORYhttps://exchange.xforce.ibmcloud.com/vulnerabilities/48128

All References (20)

→

http://libpng.sourceforge.net/index.htmlThird Party Advisory

→

http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00000.htmlThird Party Advisory

→

http://openwall.com/lists/oss-security/2009/01/09/1Mailing List · Third Party Advisory

→

http://secunia.com/advisories/34320Third Party Advisory

→

http://secunia.com/advisories/34388Third Party Advisory

→

http://security.gentoo.org/glsa/glsa-200903-28.xmlThird Party Advisory

→

http://sourceforge.net/mailarchive/forum.php?thread_name=4B6F0239C13D0245820603C036D180BC79FBAA%40CABOTUKEXCH01.cabot.local&forum_name=png-mng-implementThird Party Advisory

→

http://www.debian.org/security/2009/dsa-1750Third Party Advisory

→

http://www.mandriva.com/security/advisories?name=MDVSA-2009:051Third Party Advisory

→

https://exchange.xforce.ibmcloud.com/vulnerabilities/48128Third Party Advisory · VDB Entry

→

http://libpng.sourceforge.net/index.htmlThird Party Advisory

→

http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00000.htmlThird Party Advisory

→

http://openwall.com/lists/oss-security/2009/01/09/1Mailing List · Third Party Advisory

→

http://secunia.com/advisories/34320Third Party Advisory

→

http://secunia.com/advisories/34388Third Party Advisory

Quick Facts

CVE IDCVE-2008-5907

CVSS Score5.0 / 10

SeverityMEDIUM

WeaknessNVD-CWE-noinfo

CISA KEVNo

Affected2 vendor(s)

PublishedJan 15, 2009

Related CVEs (NVD-CWE-noinfo)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2008-5907 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

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