7.8

CVE-2021-3516

Exploit
There's a flaw in libxml2's xmllint in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Xmlsoft ≫ Xmllint Version < 2.9.11
Debian ≫ Debian Linux Version9.0
Fedoraproject ≫ Fedora Version33
Fedoraproject ≫ Fedora Version34
Redhat ≫ Enterprise Linux Version6.0
Redhat ≫ Enterprise Linux Version7.0
Redhat ≫ Enterprise Linux Version8.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.99% 0.781
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvd@nist.gov 6.8 8.6 6.4
AV:N/AC:M/Au:N/C:P/I:P/A:P
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://www.oracle.com/security-alerts/cpujan2022.html
Patch
Third Party Advisory
https://security.gentoo.org/glsa/202107-05
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/05/msg00008.html
Third Party Advisory
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV/
https://bugzilla.redhat.com/show_bug.cgi?id=1954225
Third Party Advisory
Issue Tracking
https://gitlab.gnome.org/GNOME/libxml2/-/commit/1358d157d0bd83be1dfe356a69213df9fac0b539
Patch
Third Party Advisory
https://gitlab.gnome.org/GNOME/libxml2/-/issues/230
Third Party Advisory
Exploit
Issue Tracking
https://security.netapp.com/advisory/ntap-20210716-0005/
Third Party Advisory