CVE-2021-3518

Description

There's a flaw in libxml2 in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by an application linked with libxml2 could trigger a use-after-free. The greatest impact from this flaw is to confidentiality, integrity, and availability.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.19%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org
Affected: n/a libxml2
Published at:
Updated at:

References

Link Tags
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV/ vendor advisory
https://lists.debian.org/debian-lts-announce/2021/05/msg00008.html third party advisory mailing list
https://bugzilla.redhat.com/show_bug.cgi?id=1954242 patch third party advisory issue tracking
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6/ vendor advisory
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E mailing list
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E mailing list
https://security.gentoo.org/glsa/202107-05 third party advisory vendor advisory
https://security.netapp.com/advisory/ntap-20210625-0002/ third party advisory
http://seclists.org/fulldisclosure/2021/Jul/58 third party advisory mailing list
http://seclists.org/fulldisclosure/2021/Jul/54 third party advisory mailing list
http://seclists.org/fulldisclosure/2021/Jul/55 third party advisory mailing list
http://seclists.org/fulldisclosure/2021/Jul/59 third party advisory mailing list
https://www.oracle.com/security-alerts/cpuoct2021.html third party advisory patch
https://support.apple.com/kb/HT212605 third party advisory
https://support.apple.com/kb/HT212602 third party advisory
https://support.apple.com/kb/HT212601 third party advisory
https://support.apple.com/kb/HT212604 third party advisory
https://www.oracle.com/security-alerts/cpuapr2022.html third party advisory patch
https://www.oracle.com/security-alerts/cpujul2022.html not applicable

Frequently Asked Questions

What is the severity of CVE-2021-3518?
CVE-2021-3518 has been scored as a high severity vulnerability.
How to fix CVE-2021-3518?
To fix CVE-2021-3518, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3518 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-3518 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-3518?
CVE-2021-3518 affects n/a libxml2.
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