Out-of-bounds read in firefox-esr (Alpine package)



Published: 2020-09-03
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-3327
CWE-ID CWE-125
Exploitation vector Network
Public exploit N/A
Vulnerable software
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firefox-esr (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Out-of-bounds read

EUVDB-ID: #VU27928

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-3327

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition when processing ARJ archives. A remote attacker can pass specially crafted ARJ archive to the application, trigger out-of-bounds read error and crash the service.

Mitigation

Install update from vendor's website.

Vulnerable software versions

firefox-esr (Alpine package): 68.3.0-r0 - 68.8.0-r0

External links

http://git.alpinelinux.org/aports/commit/?id=d674ed89f91ccc24468e27d5dcde264eb734f58c


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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