QID 355281

Date Published: 2023-05-29

QID 355281: Amazon Linux Security Advisory for expat : ALAS2023-2023-058

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). (
( CVE-2021-45960) in doprolog in xmlparse.c in expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupsize. (
( CVE-2021-46143) addbinding in xmlparse.c in expat (aka libexpat) before 2.4.3 has an integer overflow. (
( CVE-2022-22822) build_model in xmlparse.c in expat (aka libexpat) before 2.4.3 has an integer overflow. (
( CVE-2022-22823) defineattribute in xmlparse.c in expat (aka libexpat) before 2.4.3 has an integer overflow. (
( CVE-2022-22824) lookup in xmlparse.c in expat (aka libexpat) before 2.4.3 has an integer overflow. (
( CVE-2022-22825) nextscaffoldpart in xmlparse.c in expat (aka libexpat) before 2.4.3 has an integer overflow. (
( CVE-2022-22826) storeatts in xmlparse.c in expat (aka libexpat) before 2.4.3 has an integer overflow. (
( CVE-2022-22827) expat (libexpat) is susceptible to a software flaw that causes process interruption.
When processing a large number of prefixed xml attributes on a single tag can libexpat can terminate unexpectedly due to integer overflow.

Successful exploitation of this vulnerability could lead to a securitybreach or could affect integrity, availability, and confidentiality.

CVSS V3 rated as Critical - 9.8 severity.

CVSS V2 rated as Critical - 9 severity.

Solution

Please refer to Amazon advisory: ALAS2023-2023-058 for affected packages and patching details, or update with your package manager.

Vendor References

ALAS2023-2023-058 - alas.aws.amazon.com/AL2023/ALAS-2023-058.html

CVEs related to QID 355281

CVE-2022-25313 | CVE-2022-25315 | CVE-2022-25314 | CVE-2022-40674 | CVE-2022-22822 | CVE-2022-25235 | CVE-2021-45960 | CVE-2022-22826 | CVE-2022-22824 | CVE-2022-22825 | CVE-2022-43680 | CVE-2022-25236 | CVE-2022-23990 | CVE-2021-46143 | CVE-2022-22823 | CVE-2022-22827 | CVE-2022-23852 |

Software Advisories

Advisory ID	Software	Component	Link
ALAS2023-2023-058	amazon linux 2023		alas.aws.amazon.com/AL2023/ALAS-2023-058.html

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