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4.3
CVSSv2

CVE-2019-20633

Published: 25/03/2020 Updated: 05/11/2020
CVSS v2 Base Score: 4.3 | Impact Score: 2.9 | Exploitability Score: 8.6
CVSS v3 Base Score: 5.5 | Impact Score: 3.6 | Exploitability Score: 1.8
VMScore: 383
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
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Vulnerability Summary

GNU patch up to and including 2.7.6 contains a free(p_line[p_end]) Double Free vulnerability in the function another_hunk in pch.c that can cause a denial of service via a crafted patch file. NOTE: this issue exists because of an incomplete fix for CVE-2018-6952.

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Github Repositories

https://github.com/strongcourage/uafuzz

UAFuzz: Binary-level Directed Fuzzing for Use-After-Free Vulnerabilities

UAFuzz: Binary-level Directed Fuzzing for Use-After-Free Vulnerabilities Directed Greybox Fuzzing (DGF) like AFLGo aims to perform stress testing on pre-selected potentially vulnerable target locations, with applications to different security contexts: (1) bug reproduction, (2) patch testing or (3) static analysis report verification There are recently more research work that

References

CWE-415https://savannah.gnu.org/bugs/index.php?56683https://nvd.nist.govhttps://github.com/strongcourage/uafuzz
CVSSv2
CVSSv2
CVSSv3
VMScore
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