CVE-2011-2501

mediumpriority · track · 27EPSS 0.035 · 89 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

3.48% (89th) EPSS

CVSS 4.3 · medium

Is it mine?

44 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-28

The png_format_buffer function in pngerror.c in libpng 1.0.x before 1.0.55, 1.2.x before 1.2.45, 1.4.x before 1.4.8, and 1.5.x before 1.5.4 allows remote attackers to cause a denial of service (application crash) via a crafted PNG image that triggers an out-of-bounds read during the copying of error-message data. NOTE: this vulnerability exists because of a CVE-2004-0421 regression. NOTE: this is called an off-by-one error by some sources.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixedlibpng-2:1.2.46-1.el6_1.i686 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-2:1.2.46-1.el6_1.ppc as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-2:1.2.46-1.el6_1.ppc64 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-2:1.2.46-1.el6_1.s390 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-2:1.2.46-1.el6_1.s390x as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-2:1.2.46-1.el6_1.src as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-2:1.2.46-1.el6_1.src as a component of Red Hat Enterprise Linux Server Optional (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-2:1.2.46-1.el6_1.x86_64 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-debuginfo-2:1.2.46-1.el6_1.i686 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-debuginfo-2:1.2.46-1.el6_1.i686 as a component of Red Hat Enterprise Linux Server Optional (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-debuginfo-2:1.2.46-1.el6_1.ppc as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-debuginfo-2:1.2.46-1.el6_1.ppc64 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-debuginfo-2:1.2.46-1.el6_1.ppc64 as a component of Red Hat Enterprise Linux Server Optional (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-debuginfo-2:1.2.46-1.el6_1.s390 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-debuginfo-2:1.2.46-1.el6_1.s390x as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-debuginfo-2:1.2.46-1.el6_1.s390x as a component of Red Hat Enterprise Linux Server Optional (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-debuginfo-2:1.2.46-1.el6_1.x86_64 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-debuginfo-2:1.2.46-1.el6_1.x86_64 as a component of Red Hat Enterprise Linux Server Optional (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-devel-2:1.2.46-1.el6_1.i686 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-devel-2:1.2.46-1.el6_1.ppc as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-devel-2:1.2.46-1.el6_1.ppc64 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-devel-2:1.2.46-1.el6_1.s390 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-devel-2:1.2.46-1.el6_1.s390x as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-devel-2:1.2.46-1.el6_1.x86_64 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-static-2:1.2.46-1.el6_1.i686 as a component of Red Hat Enterprise Linux Server Optional (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-static-2:1.2.46-1.el6_1.ppc64 as a component of Red Hat Enterprise Linux Server Optional (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-static-2:1.2.46-1.el6_1.s390x as a component of Red Hat Enterprise Linux Server Optional (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105
Fixedlibpng-static-2:1.2.46-1.el6_1.x86_64 as a component of Red Hat Enterprise Linux Server Optional (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1105

cvss

Technical severity, 0–10. One row per scoring source.

6.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Psecondary · FSTEC (BDU) RU

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Psecondary · Red Hat Product Security US

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-125USprimaryCWE-125US

affected products (44)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
Red Hat Inc. Red Hat Enterprise Linux≤ Server 6.1.zfstec_bduRU
Red Hat Inc. Red Hat Enterprise Linux≤ HPC Node 6fstec_bduRU
Red Hat Inc. Red Hat Enterprise Linux≤ Desktop 6fstec_bduRU
Red Hat Inc. Red Hat Enterprise Linux≤ Server 6fstec_bduRU
canonical ubuntu linux= 10.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 10.10nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 11.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 8.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
debian debian linux= 5.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
debian debian linux= 6.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
fedoraproject fedora= 14nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
libpng libpng1.0.0 → 1.0.55nvdUScpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:*
libpng libpng1.2.0 → 1.2.45nvdUScpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:*
libpng libpng1.4.0 → 1.4.8nvdUScpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:*
libpng libpng1.5.0 → 1.5.4nvdUScpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:*
libpng-2:1.2.46-1.el6_1.i686 as a component of Red Hat Enterprise Linux Server (v. 6)all versionsfixedredhat_csafUS
libpng-2:1.2.46-1.el6_1.ppc as a component of Red Hat Enterprise Linux Server (v. 6)all versionsfixedredhat_csafUS
libpng-2:1.2.46-1.el6_1.ppc64 as a component of Red Hat Enterprise Linux Server (v. 6)all versionsfixedredhat_csafUS
libpng-2:1.2.46-1.el6_1.s390 as a component of Red Hat Enterprise Linux Server (v. 6)all versionsfixedredhat_csafUS

showing 20 of 44

advisories (1)

Vendor and ecosystem advisories describing this.

RHSA-2011:1105Red Hat Security Advisory: libpng security update2011-07-28csaf · redhat_csafUS
Updated libpng packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

also known as (8)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd redhat_csaf NVD CVE.org MITRE

published 2011-07-17modified 2026-06-16

related (11,879)

Related entries.

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+11874 more

references (70)

External citations — patches, advisories, analysis.

scry

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