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CVE-2021-20294

HIGHCVSS 7.8/10EPSS 3.41%

Last modified

CVE-2021-20294 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. EPSS estimates a 3.41% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.8/10

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

EPSS Probability
3.41%

87.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
GnuBinutils>= 2.35, < 2.35.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-20294?
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.
How severe is CVE-2021-20294?
CVE-2021-20294 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 3.41% probability of exploitation in the next 30 days.
How do I fix CVE-2021-20294?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-20294?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST