Double free vulnerability in libxml2, as used in Google Chrome before 14.0.835.163, allows remote attackers to cause a denial of service or
Double free vulnerability in libxml2, as used in Google Chrome before 14.0.835.163, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to XPath handling.
- Published
- Sep 19, 2011
- Updated
- Jun 16, 2026
- EPSS
- 2.0% · 80th percentile
- CWE
- CWE-415
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Report tools
Action score
28
Monitor
Low priority for now.
- CVSS
- 27 / 40 · 6.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 2.0%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| chrome | cpe:2.3:a:google:chrome | |
| apple | iphone os | cpe:2.3:o:apple:iphone_os |
| apple | mac os x | cpe:2.3:o:apple:mac_os_x |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
| redhat | enterprise linux desktop | cpe:2.3:o:redhat:enterprise_linux_desktop |
| redhat | enterprise linux server | cpe:2.3:o:redhat:enterprise_linux_server |
| redhat | enterprise linux server eus | cpe:2.3:o:redhat:enterprise_linux_server_eus |
| redhat | enterprise linux workstation | cpe:2.3:o:redhat:enterprise_linux_workstation |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- apple iphone osbefore 6.0
- apple mac os xbefore 10.7.4
- debian debian linux5.0
- debian debian linux6.0
- debian debian linux7.0
- google chromebefore 14.0.835.163
- redhat enterprise linux desktop6.0
- redhat enterprise linux server6.0
- redhat enterprise linux server eus6.3
- redhat enterprise linux workstation6.0
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | libxml2 | before 2.7.8.dfsg-5 | 2.7.8.dfsg-5 |
| Debian:5.0 | libxml2 | before 2.6.32.dfsg-5+lenny5 | 2.6.32.dfsg-5+lenny5 |
| Debian:6.0 | libxml2 | before 2.7.8.dfsg-2+squeeze2 | 2.7.8.dfsg-2+squeeze2 |
| Red Hat:enterprise_linux:4::as | libxml2 | before 0:2.6.16-12.9 | 0:2.6.16-12.9 |
| Red Hat:enterprise_linux:4::as | libxml2-debuginfo | before 0:2.6.16-12.9 | 0:2.6.16-12.9 |
| Red Hat:enterprise_linux:4::as | libxml2-devel | before 0:2.6.16-12.9 | 0:2.6.16-12.9 |
| Red Hat:enterprise_linux:4::as | libxml2-python | before 0:2.6.16-12.9 | 0:2.6.16-12.9 |
| Red Hat:enterprise_linux:5::client | libxml2 | before 0:2.6.26-2.1.12.el5_7.2 | 0:2.6.26-2.1.12.el5_7.2 |
| Red Hat:enterprise_linux:5::client | libxml2-debuginfo | before 0:2.6.26-2.1.12.el5_7.2 | 0:2.6.26-2.1.12.el5_7.2 |
| Red Hat:enterprise_linux:5::client | libxml2-python | before 0:2.6.26-2.1.12.el5_7.2 | 0:2.6.26-2.1.12.el5_7.2 |
| Red Hat:enterprise_linux:5::client_workstation | libxml2-devel | before 0:2.6.26-2.1.12.el5_7.2 | 0:2.6.26-2.1.12.el5_7.2 |
| Red Hat:enterprise_linux:6::client | libxml2 | before 0:2.7.6-4.el6 | 0:2.7.6-4.el6 |
| Red Hat:enterprise_linux:6::client | libxml2-debuginfo | before 0:2.7.6-4.el6 | 0:2.7.6-4.el6 |
| Red Hat:enterprise_linux:6::client | libxml2-devel | before 0:2.7.6-4.el6 | 0:2.7.6-4.el6 |
| Red Hat:enterprise_linux:6::client | libxml2-python | before 0:2.7.6-4.el6 | 0:2.7.6-4.el6 |
| Red Hat:enterprise_linux:6::client | libxml2-static | before 0:2.7.6-4.el6 | 0:2.7.6-4.el6 |
| Red Hat:enterprise_linux:6::client | mingw32-libxml2 | before 0:2.7.6-6.el6_3 | 0:2.7.6-6.el6_3 |
| Red Hat:enterprise_linux:6::client | mingw32-libxml2-debuginfo | before 0:2.7.6-6.el6_3 | 0:2.7.6-6.el6_3 |
| Red Hat:enterprise_linux:6::client | mingw32-libxml2-static | before 0:2.7.6-6.el6_3 | 0:2.7.6-6.el6_3 |
Same product
google: all recordsOther highest-scoring records for the same primary product.
- CVE-2023-4863Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of boKEV95Now
- CVE-2021-21224Type confusion in V8 in Google Chrome prior to 90.0.4430.85 allowed a remote attacker to execute arbitrary code inside a sandbox via a craftKEV90Now
- CVE-2018-17463Incorrect side effect annotation in V8 in Google Chrome prior to 70.0.3538.64 allowed a remote attacker to execute arbitrary code inside a sKEV90Now
- CVE-2020-6418Type confusion in V8 in Google Chrome prior to 80.0.3987.122 allowed a remote attacker to potentially exploit heap corruption via a crafted KEV89Now
- CVE-2022-2294Heap buffer overflow in WebRTC in Google Chrome prior to 103.0.5060.114 allowed a remote attacker to potentially exploit heap corruption viaKEV86Now
- CVE-2021-21220Insufficient validation of untrusted input in V8 in Google Chrome prior to 89.0.4389.128 allowed a remote attacker to potentially exploit heKEV86Now
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:libxml2 | 2.7.8.dfsg-5 · Debian:12 | Package registry (OSV) |
| red hat:libxml2 | 0:2.7.6-4.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:libxml2-debuginfo | 0:2.7.6-4.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:libxml2-devel | 0:2.7.6-4.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:libxml2-python | 0:2.7.6-4.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:libxml2-static | 0:2.7.6-4.el6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:mingw32-libxml2 | 0:2.7.6-6.el6_3 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:mingw32-libxml2-debuginfo | 0:2.7.6-6.el6_3 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:mingw32-libxml2-static | 0:2.7.6-6.el6_3 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
If successful
- Confidentiality
- P · data can be read
- Integrity
- P · data or configuration can be modified
- Availability
- P · the service can be disrupted
- Attack complexity
- M
- Confidentiality impact
- P
- Integrity impact
- P
- Availability impact
- P
Weakness class (CWE)
CWE-415 · Double FreeCVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:P
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- code.google.com/p/chromium/issues/detail?id=93472
- googlechromereleases.blogspot.com/2011/09/stable-channel-update_16.html
- h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
- lists.apple.com/archives/security-announce/2012/May/msg00001.html
- lists.apple.com/archives/security-announce/2012/Sep/msg00003.html
- osvdb.org/75560
- rhn.redhat.com/errata/RHSA-2013-0217.html
- support.apple.com/kb/HT5281
- support.apple.com/kb/HT5503
- www.debian.org/security/2012/dsa-2394
- www.mandriva.com/security/advisories?name=MDVSA-2011:145
- www.redhat.com/support/errata/RHSA-2011-1749.html
- exchange.xforce.ibmcloud.com/vulnerabilities/69885
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14410
Vendor advisories and official records. Exploit/PoC links are deliberately left out.