Vulnerability Details : CVE-2021-35517

When reading a specially crafted TAR archive, Compress can be made to allocate large amounts of memory that finally leads to an out of memory error even for very small inputs. This could be used to mount a denial of service attack against services that use Compress' tar package.
Published 2021-07-13 08:15:07
Updated 2023-02-28 15:21:52
Source Apache Software Foundation
View at NVD,   CVE.org
Vulnerability category: Denial of service

Products affected by CVE-2021-35517

Exploit prediction scoring system (EPSS) score for CVE-2021-35517

EPSS FAQ
1.35%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 86 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-35517

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.0
 MEDIUM AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
 NIST
7.5
 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.9
3.6
 NIST

CWE ids for CVE-2021-35517

  • The product parses a formatted message or structure, but it does not handle or incorrectly handles a length field that is inconsistent with the actual length of the associated data.
    Assigned by: security@apache.org (Secondary)
  • The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-35517

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