CVE-2021-45960

Sažetak

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).

Reference

http://www.openwall.com/lists/oss-security/2022/01/17/3
https://bugzilla.mozilla.org/show_bug.cgi?id=1217609
https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
https://github.com/libexpat/libexpat/issues/531
https://github.com/libexpat/libexpat/pull/534
https://security.gentoo.org/glsa/202209-24
https://security.netapp.com/advisory/ntap-20220121-0004/
https://www.debian.org/security/2022/dsa-5073
https://www.tenable.com/security/tns-2022-05
http://www.openwall.com/lists/oss-security/2022/01/17/3
https://bugzilla.mozilla.org/show_bug.cgi?id=1217609
https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
https://github.com/libexpat/libexpat/issues/531
https://github.com/libexpat/libexpat/pull/534
https://security.gentoo.org/glsa/202209-24
https://security.netapp.com/advisory/ntap-20220121-0004/
https://www.debian.org/security/2022/dsa-5073
https://www.tenable.com/security/tns-2022-05

CVSS

Base:	9.0
Impact:	10.0
Exploitability:	8.0

Pristup

Vektor	Složenost	Autentikacija
NETWORK	LOW	SINGLE

Impact

Povjerljivost	Cjelovitost	Dostupnost
COMPLETE	COMPLETE	COMPLETE

CVSS vektor

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

Zadnje važnije ažuriranje

05-05-2025 - 17:17

Objavljeno

01-01-2022 - 19:15