CVE-2021-20294

Public Exploit

Description

A flaw was found in binutils readelf 2.35 program. An attacker who is able to convince a victim using readelf to read a crafted file could trigger a stack buffer overflow, out-of-bounds write of arbitrary data supplied by the attacker. The highest impact of this flaw is to confidentiality, integrity, and availability.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 15.76% Top 10%
Vendor Advisory gentoo.org
Affected: n/a binutils
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1943533 third party advisory issue tracking
https://sourceware.org/bugzilla/show_bug.cgi?id=26929 patch exploit third party advisory issue tracking
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E mailing list
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E mailing list
https://security.gentoo.org/glsa/202208-30 third party advisory vendor advisory
https://sourceware.org/git/?p=binutils-gdb.git%3Ba=patch%3Bh=372dd157272e0674d13372655cc60eaca9c06926

Frequently Asked Questions

What is the severity of CVE-2021-20294?
CVE-2021-20294 has been scored as a high severity vulnerability.
How to fix CVE-2021-20294?
To fix CVE-2021-20294, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-20294 being actively exploited in the wild?
It is possible that CVE-2021-20294 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~16% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-20294?
CVE-2021-20294 affects n/a binutils.
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