What’s Vulnerable › Vulnerabilities

CVE-2021-33294

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-07-18 · updated 2026-10-14
• Weakness: CWE-835

Description

In elfutils 0.183, an infinite loop was found in the function handle_symtab in readelf.c .Which allows attackers to cause a denial of service (infinite loop) via crafted file.

Affected products

• GNU elfutils: 0.183

References

• https://sourceware.org/bugzilla/show_bug.cgi?id=27501
• https://sourceware.org/pipermail/elfutils-devel/2021q1/003607.html
• https://sourceware.org/bugzilla/show_bug.cgi?id=27501
• https://sourceware.org/pipermail/elfutils-devel/2021q1/003607.html
• https://cert-portal.siemens.com/productcert/html/ssa-398330.html

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