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CVE-2020-15254

Undefined Behavior in bounded Crossbeam channel

Published: Oct 16, 2020Updated: Nov 21, 2024 Sources: CVE List NVD GHSA BDUCWE-119
8.1HIGH
NVD MITRE
EPSS Score
2.8%
Top 15.0%
CISA KEV
Not in KEV
Exploits
2 Known
Remediation
Patch Available
Self-Check
OpenVAS

Description

Crossbeam is a set of tools for concurrent programming. In crossbeam-channel before version 0.4.4, the bounded channel incorrectly assumes that `Vec::from_iter` has allocated capacity that same as the number of iterator elements. `Vec::from_iter` does not actually guarantee that and may allocate extra memory. The destructor of the `bounded` channel reconstructs `Vec` from the raw pointer based on the incorrect assumes described above. This is unsound and causing deallocation with the incorrect capacity when `Vec::from_iter` has allocated different sizes with the number of iterator elements. This has been fixed in crossbeam-channel 0.4.4.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-119CWE-401

Affected Products

Crossbeam
oss-projectaka crossbeam-rs
crossbeamLibrary
OSS Libraries / crates-io
Crossbeam channelLibrary
OSS Libraries / crates-io
crossbeam project
oss-project
crossbeamOn-prem
OSS Libraries / generic-library
crates.io
package-ecosystem
crossbeam-channel
OSS Libraries
АО «ИВК»
commercial·RUaka ivk
Альт 8 СПOn-premOS
Operating Systems / linux-distro
АО «НППКТ»
commercial·RU
ОСОН ОСнова ОnyxOn-premOS
Operating Systems / linux-distro
АО «Концерн ВНИИНС»
commercial·RUaka ao konsern vniins
ОС ОН «Стрелец»On-premOS
Operating Systems / linux-distro

Exploitability

2 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

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Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
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References

https://github.com/RustSec/advisory-db/pull/425
github.com
https://github.com/crossbeam-rs/crossbeam/issues/539
github.com
https://github.com/crossbeam-rs/crossbeam/pull/533
github.com
and 11 more references View all →

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