libxml2: double free caused by malformed XPath expression in XSLT
Published Aug 29, 2011
7.5
HIGHCVSS 2.0
EPSS 1.69%
Description
Double free vulnerability in libxml2, as used in Google Chrome before 13.0.782.215, allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted XPath expression.
Affected products
No data.
Configuration 2
- 5.0
- 6.0
- 7.0
Configuration 3
- 6.0
- 6.3
- 6.0
- 6.0
No data.
Red Hat Enterprise Linux 6
libxml2-0:2.7.6-4.el6
Fixed · RHSA-2011:1749
Red Hat Enterprise Linux 6
mingw32-libxml2-0:2.7.6-6.el6_3
Fixed · RHSA-2013:0217
Red Hat Enterprise Linux 4
libxml2
Not affected
Red Hat Enterprise Linux 5
libxml2
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | libxml2-0:2.7.6-4.el6 | Fixed | RHSA-2011:1749 |
| Red Hat Enterprise Linux 6 | mingw32-libxml2-0:2.7.6-6.el6_3 | Fixed | RHSA-2013:0217 |
| Red Hat Enterprise Linux 4 | libxml2 | Not affected | n/a |
| Red Hat Enterprise Linux 5 | libxml2 | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the version of libxml2 package as shipped with Red Hat Enterprise Linux 4 and 5.
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:P/I:P/A:P
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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.69% (0.01693) | 76.28th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.99% (0.01991) | 78.00th | v5 (v2026.06.15) |
| Mar 17, 2025 | 2.43% (0.02432) | 84.06th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.64% (0.02637) | 90.73th | v3 (v2023.03.01) |
| Nov 8, 2023 | 2.64% (0.02637) | 89.22th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.27% (0.03266) | 89.74th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.78% (0.03779) | 85.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.78% (0.03779) | 84.01th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.78% (0.03779) | 67.21th | v2 (v2022.01.01) |
References (16)
- http://code.google.com/p/chromium/issues/detail?id=89402 x_refsource_CONFIRM
- http://googlechromereleases.blogspot.com/2011/08/stable-channel-update_22.html x_refsource_CONFIRM
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041 vendor-advisoryx_refsource_HP
- http://lists.apple.com/archives/security-announce/2012/May/msg00001.html vendor-advisoryx_refsource_APPLE
- http://lists.apple.com/archives/security-announce/2012/Sep/msg00003.html vendor-advisoryx_refsource_APPLE
- http://rhn.redhat.com/errata/RHSA-2013-0217.html vendor-advisoryx_refsource_REDHAT
- http://support.apple.com/kb/HT5281 x_refsource_CONFIRM
- http://support.apple.com/kb/HT5503 x_refsource_CONFIRM
- http://www.debian.org/security/2012/dsa-2394 vendor-advisoryx_refsource_DEBIAN
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:145 vendor-advisoryx_refsource_MANDRIVA
- http://www.redhat.com/support/errata/RHSA-2011-1749.html vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2011-2821 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=735712 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2011-2821
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13840 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2011-2821
Change history (0)
No recorded changes yet.