CVE-2020-6096

01/תיאור (מקור, אנגלית)

An exploitable signed comparison vulnerability exists in the ARMv7 memcpy() implementation of GNU glibc 2.30.9000. Calling memcpy() (on ARMv7 targets that utilize the GNU glibc implementation) with a negative value for the 'num' parameter results in a signed comparison vulnerability. If an attacker underflows the 'num' parameter to memcpy(), this vulnerability could lead to undefined behavior such as writing to out-of-bounds memory and potentially remote code execution. Furthermore, this memcpy() implementation allows for program execution to continue in scenarios where a segmentation fault or crash should have occurred. The dangers occur in that subsequent execution and iterations of this code will be executed with this corrupted data.

02/מוצרים מושפעים

gnu: glibc; fedoraproject: fedora; debian: debian linux

03/קישורים10

• lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd953‮…
• lists.debian.org/debian-lts-announce/2022/10/msg00021.html Mailing ListThird Party Advisory
• lists.fedoraproject.org/archives/list/package-announce%40lists‮…
• lists.fedoraproject.org/archives/list/package-announce%40lists‮…
• security.gentoo.org/glsa/202101-20 Third Party Advisory
• sourceware.org/bugzilla/show_bug.cgi?id=25620 Issue TrackingThird Party Advisory
• www.talosintelligence.com/vulnerability_reports/TALOS-2020-1019 Third Party Advisory
• lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd953‮…
• lists.debian.org/debian-lts-announce/2022/10/msg00021.html Mailing ListThird Party Advisory
• lists.fedoraproject.org/archives/list/package-announce%40lists‮…