Incorrect Calculation Affecting expat package, versions <0:2.2.5-4.el8_5.3
Snyk CVSS
Attack Complexity
Low
Confidentiality
High
Integrity
High
Availability
High
Threat Intelligence
EPSS
1.02% (84th
percentile)
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Test your applications- Snyk ID SNYK-CENTOS8-EXPAT-2360498
- published 25 Jan 2022
- disclosed 17 Jan 2022
How to fix?
Upgrade Centos:8
expat
to version 0:2.2.5-4.el8_5.3 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream expat
package and not the expat
package as distributed by Centos
.
See How to fix?
for Centos:8
relevant fixed versions and status.
In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory).
References
- https://access.redhat.com/security/cve/CVE-2021-45960
- https://access.redhat.com/errata/RHSA-2022:0951
- https://github.com/libexpat/libexpat/issues/531
- https://github.com/libexpat/libexpat/pull/534
- https://bugzilla.mozilla.org/show_bug.cgi?id=1217609
- http://www.openwall.com/lists/oss-security/2022/01/17/3
- https://security.netapp.com/advisory/ntap-20220121-0004/
- https://www.tenable.com/security/tns-2022-05
- https://www.debian.org/security/2022/dsa-5073
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
- https://security.gentoo.org/glsa/202209-24