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CVE-2009-5063

18
FAUCET Score

CVE-2009-5063 describes a memory leak vulnerability in libpng versions prior to 1.2.39beta5, specifically within the embedded_profile_len function in pngwutil.c. This flaw allows remote attackers to trigger a denial of service (memory leak or segmentation fault) by supplying a crafted JPEG image containing an iCCP chunk with a negative embedded profile length. Rated with a CVSS score of 5.0 (AV:N/AC:L/Au:N/C:N/I:N/A:P), it indicates a network-exploitable vulnerability with low attack complexity, leading to partial availability impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.2.38CPE matchmatch criteria
cpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:*
1.2.39CPE matchmatch criteria
cpe:2.3:a:libpng:libpng:1.2.39:-:*:*:*:*:*:*
1.2.39CPE matchmatch criteria
cpe:2.3:a:libpng:libpng:1.2.39:beta1:*:*:*:*:*:*
1.2.39CPE matchmatch criteria
cpe:2.3:a:libpng:libpng:1.2.39:beta2:*:*:*:*:*:*
1.2.39CPE matchmatch criteria
cpe:2.3:a:libpng:libpng:1.2.39:beta3:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.50%
Probability of exploitation in next 30 days
EPSS Percentile
71.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0150 is in the 54th percentile among its peer group of 23,725 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

microsoftpatch availablevia msrc
Product: azl3 syslinux libpng-1.2.39 on Azure Linux 3.0Fixed in: libpng-1.2.39
microsoftpatch availablevia msrc
Product: azl3 syslinux 6.04-11 on Azure Linux 3.0
microsoftpatch availablevia msrc
Product: 19245-17084Fixed in: libpng-1.2.39
microsoftpatch availablevia msrc
Product: 16848-17084

Vendor Advisories (2)

microsoft2011-Aug/CVE-2009-5063Moderate

Memory leak in the embedded_profile_len function in pngwutil.c in libpng before 1.2.39beta5 allows context-dependent attackers to cause a denial of service (memory leak or segmentation fault) via a JPEG image containing an iCCP chunk with a negative embedded profile length. NOTE: this is due to an incomplete fix for CVE-2006-7244.

Aug 2, 2011
redhatCVE-2009-5063Low

libpng: Memory leak by write of iCCP chunk with negative embedded profile length (CVE-2006-7244, CVE-2009-5063)

Aug 1, 2009

References

libpng.git.sourceforge.net / git/gitweb.cgi
secunia.com / advisories/49660
Broken Link
security.gentoo.org / glsa/glsa-201206-15.xml
Third Party Advisory
openwall.com / lists/oss-security/2011/03/22/7
Mailing ListPatchThird Party Advisory
openwall.com / lists/oss-security/2011/03/28/6
Mailing ListPatchThird Party Advisory