CVE-2021-20294
mediumpriority · track · 42EPSS 0.033 · 88 %ileexploit · PoCEURUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–7.8
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (1)
Public proof-of-concept and weaponised exploit code.
- tin-z/CVE-2021-20294-POCSimple CVE-2021-20294 pocPoC · poc_in_github
affected products (8)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (24)
External citations — patches, advisories, analysis.
- https://bugzilla.redhat.com/show_bug.cgi?id=1943533cnnvd
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3Ecnnvd
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3Ecnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-20294cnnvd
- https://packetstormsecurity.com/files/168081/Gentoo-Linux-Security-Advisory-202208-30.htmlcnnvd
- https://security.gentoo.org/glsa/202208-30cnnvd
- https://sourceware.org/bugzilla/show_bug.cgi?id=26929cnnvd
- https://sourceware.org/git/?p=binutils-gdb.git;a=patch;h=372dd157272e0674d13372655cc60eaca9c06926cnnvd
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