CVE-2020-15904
"bsdiff4 Heap Buffer Overflow"
Description
A buffer overflow in the patching routine of bsdiff4 before 1.2.0 allows an attacker to write to heap memory (beyond allocated bounds) via a crafted patch file.
INFO
Published Date :
July 22, 2020, 11:15 p.m.
Last Modified :
Jan. 28, 2023, 2:04 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2020-15904 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-15904.
| URL | Resource |
|---|---|
| https://github.com/ilanschnell/bsdiff4/blob/master/CHANGELOG.txt | Release Notes Third Party Advisory |
| https://github.com/ilanschnell/bsdiff4/commit/49a4cee2feef7deaf9d89e5e793a8824930284d7 | Patch Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
CPython bytecode instrumentation and forkserver tools for fuzzing pure python and mixed python/c code using AFL
cpython python afl-fuzz tracing coverage bytecode-manipulation
Python C Shell Nix
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-15904 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-15904 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Jan. 28, 2023
Action Type Old Value New Value Changed Reference Type https://github.com/ilanschnell/bsdiff4/blob/master/CHANGELOG.txt No Types Assigned https://github.com/ilanschnell/bsdiff4/blob/master/CHANGELOG.txt Release Notes, Third Party Advisory -
CVE Modified by [email protected]
Jul. 31, 2020
Action Type Old Value New Value Added Reference https://github.com/ilanschnell/bsdiff4/blob/master/CHANGELOG.txt [No Types Assigned] -
Initial Analysis by [email protected]
Jul. 28, 2020
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/ilanschnell/bsdiff4/commit/49a4cee2feef7deaf9d89e5e793a8824930284d7 No Types Assigned https://github.com/ilanschnell/bsdiff4/commit/49a4cee2feef7deaf9d89e5e793a8824930284d7 Patch, Third Party Advisory Added CWE NIST CWE-787 Added CPE Configuration OR *cpe:2.3:a:pypi:bsdiff4:*:*:*:*:*:*:*:* versions up to (excluding) 1.2.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-15904 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-15904
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.09 }} 0.02%
score
0.35073
percentile