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redhatRedHatRHSA-2021:2569
HistoryJun 29, 2021 - 1:42 p.m.

(RHSA-2021:2569) Moderate: libxml2 security update

2021-06-2913:42:19
access.redhat.com
70

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.017

Percentile

87.8%

JSON

The libxml2 library is a development toolbox providing the implementation of various XML standards.

Security Fix(es):

  • libxml2: Use-after-free in xmlEncodeEntitiesInternal() in entities.c (CVE-2021-3516)

  • libxml2: Heap-based buffer overflow in xmlEncodeEntitiesInternal() in entities.c (CVE-2021-3517)

  • libxml2: Use-after-free in xmlXIncludeDoProcess() in xinclude.c (CVE-2021-3518)

  • libxml2: NULL pointer dereference when post-validating mixed content parsed in recovery mode (CVE-2021-3537)

  • libxml2: Exponential entity expansion attack bypasses all existing protection mechanisms (CVE-2021-3541)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

OSVersionArchitecturePackageVersionFilename
RedHat8i686libxml2-debuginfo< 2.9.7-9.el8_4.2libxml2-debuginfo-2.9.7-9.el8_4.2.i686.rpm
RedHat8i686libxml2-debugsource< 2.9.7-9.el8_4.2libxml2-debugsource-2.9.7-9.el8_4.2.i686.rpm
RedHat8x86_64python3-libxml2-debuginfo< 2.9.7-9.el8_4.2python3-libxml2-debuginfo-2.9.7-9.el8_4.2.x86_64.rpm
RedHat8x86_64libxml2-debugsource< 2.9.7-9.el8_4.2libxml2-debugsource-2.9.7-9.el8_4.2.x86_64.rpm
RedHat8aarch64python3-libxml2< 2.9.7-9.el8_4.2python3-libxml2-2.9.7-9.el8_4.2.aarch64.rpm
RedHat8ppc64lelibxml2-debugsource< 2.9.7-9.el8_4.2libxml2-debugsource-2.9.7-9.el8_4.2.ppc64le.rpm
RedHat8ppc64lelibxml2< 2.9.7-9.el8_4.2libxml2-2.9.7-9.el8_4.2.ppc64le.rpm
RedHat8aarch64libxml2-devel< 2.9.7-9.el8_4.2libxml2-devel-2.9.7-9.el8_4.2.aarch64.rpm
RedHat8x86_64libxml2-devel< 2.9.7-9.el8_4.2libxml2-devel-2.9.7-9.el8_4.2.x86_64.rpm
RedHat8x86_64python3-libxml2< 2.9.7-9.el8_4.2python3-libxml2-2.9.7-9.el8_4.2.x86_64.rpm
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1-10 of 291

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CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.017

Percentile

87.8%

JSON
Related for RHSA-2021:2569
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