CVE-2022-43680

Sažetak

In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations.

Reference

http://www.openwall.com/lists/oss-security/2023/12/28/5
http://www.openwall.com/lists/oss-security/2024/01/03/5
https://github.com/libexpat/libexpat/issues/649
https://github.com/libexpat/libexpat/pull/616
https://github.com/libexpat/libexpat/pull/650
https://lists.debian.org/debian-lts-announce/2022/10/msg00033.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AJ5VY2VYXE4WTRGQ6LMGLF6FV3SY37YE/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BY4OPSIB33ETNUXZY2UPZ4NGQ3OKDY4D/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DPQVIF6TOJNY2T3ZZETFKR4G34FFREBQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FFCOMBSOJKLIKCGCJWHLJXO4EVYBG7AR/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUJ2BULJTZ2BMSKQHB6US674P55UCWWS/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XG5XOOB7CD55CEE6OJYKSACSIMQ4RWQ6/
https://security.gentoo.org/glsa/202210-38
https://security.netapp.com/advisory/ntap-20221118-0007/
https://www.debian.org/security/2022/dsa-5266
http://www.openwall.com/lists/oss-security/2023/12/28/5
http://www.openwall.com/lists/oss-security/2024/01/03/5
https://github.com/libexpat/libexpat/issues/649
https://github.com/libexpat/libexpat/pull/616
https://github.com/libexpat/libexpat/pull/650
https://lists.debian.org/debian-lts-announce/2022/10/msg00033.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AJ5VY2VYXE4WTRGQ6LMGLF6FV3SY37YE/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BY4OPSIB33ETNUXZY2UPZ4NGQ3OKDY4D/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DPQVIF6TOJNY2T3ZZETFKR4G34FFREBQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FFCOMBSOJKLIKCGCJWHLJXO4EVYBG7AR/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUJ2BULJTZ2BMSKQHB6US674P55UCWWS/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XG5XOOB7CD55CEE6OJYKSACSIMQ4RWQ6/
https://security.gentoo.org/glsa/202210-38
https://security.netapp.com/advisory/ntap-20221118-0007/
https://www.debian.org/security/2022/dsa-5266

CVSS

Base:	7.5
Impact:	3.6
Exploitability:	3.9

Pristup

Vektor	Složenost	Autentikacija
NETWORK	LOW	NONE

Impact

Povjerljivost	Cjelovitost	Dostupnost
NONE	NONE	HIGH

CVSS vektor

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

Zadnje važnije ažuriranje

30-05-2025 - 20:15

Objavljeno

24-10-2022 - 14:15