MEDIUM
libpng: regression of CVE-2004-0421 in 1.2.23+
Published Jul 17, 2011
6.5
MEDIUMCVSS 3.1
EPSS 3.48%
Description
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.
Affected products
No data.
Configuration 1
Configuration 2
- 14
Configuration 3
OR
- 5.0
- 6.0
Configuration 4
OR
- 8.04
- 10.04
- 10.10
- 11.04
No data.
Red Hat Enterprise Linux 6
libpng-2:1.2.46-1.el6_1
Fixed · RHSA-2011:1105
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | libpng-2:1.2.46-1.el6_1 | Fixed | RHSA-2011:1105 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
6.5 MEDIUM NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
No CVSS v3.0 score for this CVE.
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
3.48% 0.03484
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.03484
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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.48% (0.03484) | 88.73th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.36% (0.03363) | 87.12th | v5 (v2026.06.15) |
| Jan 20, 2026 | 2.25% (0.02245) | 84.14th | v4 (v2025.03.14) |
| May 10, 2025 | 0.57% (0.00566) | 67.24th | v4 (v2025.03.14) |
| Mar 30, 2025 | 1.65% (0.01650) | 80.32th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.12% (0.03119) | 77.96th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.10% (0.02096) | 82.86th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.55% (0.00553) | 78.30th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.55% (0.00553) | 76.86th | v3 (v2023.03.01) |
| Aug 5, 2023 | 0.55% (0.00553) | 74.54th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.49% (0.00489) | 72.38th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.93% (0.03932) | 85.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.93% (0.03932) | 84.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.93% (0.03932) | 67.70th | v2 (v2022.01.01) |
Weaknesses (1)
References (26)
- http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng%3Ba=commit%3Bh=65e6d5a34f49acdb362a0625a706c6b914e670af x_refsource_CONFIRM
- http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062720.html vendor-advisoryx_refsource_FEDORAMailing ListThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063118.html vendor-advisoryx_refsource_FEDORAMailing ListThird Party Advisory
- http://secunia.com/advisories/45046 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/45289 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/45405 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/45415 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/45460 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/45486 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/45492 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/49660 third-party-advisoryx_refsource_SECUNIABroken Link
- http://security.gentoo.org/glsa/glsa-201206-15.xml vendor-advisoryx_refsource_GENTOOThird Party Advisory
- http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.617466 vendor-advisoryx_refsource_SLACKWAREMailing ListPatchThird Party Advisory
- http://sourceforge.net/mailarchive/forum.php?thread_name=BANLkTikrnU6FJNQYFvwmt78hwpgKPVRd1Q%40mail.gmail.com&forum_name=png-mng-implement x_refsource_CONFIRMExploitIssue TrackingThird Party Advisory
- http://www.debian.org/security/2011/dsa-2287 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:151 vendor-advisoryx_refsource_MANDRIVABroken Link
- http://www.openwall.com/lists/oss-security/2011/06/27/13 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2011/06/28/16 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.redhat.com/support/errata/RHSA-2011-1105.html vendor-advisoryx_refsource_REDHATBroken Link
- http://www.securityfocus.com/bid/48474 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-1175-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2011-2501 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=717084 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/68517 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
- https://nvd.nist.gov/vuln/detail/CVE-2011-2501
- https://www.cve.org/CVERecord?id=CVE-2011-2501
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Jul 17, 2011
Updated Aug 6, 2024
Reserved Jun 15, 2011
Link CVE-2011-2501
CISA Vulnrichment
Updated n/a