Information disclosure in Glibc



Published: 2019-07-15 | Updated: 2020-04-07
Risk Low
Patch available NO
Number of vulnerabilities 1
CVE-ID CVE-2019-1010024
CWE-ID CWE-200
Exploitation vector Local
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe 		Glibc
Universal components / Libraries / Libraries used by multiple products

Vendor GNU

Security Bulletin

This security bulletin contains information about 1 vulnerabilities.

Updated: 07.04.2020

Updated list of affected versions.

1) Information disclosure

EUVDB-ID: #VU21240

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:U/RC:C]

CVE-ID: CVE-2019-1010024

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to the way glibc creates threads with pthread_create and then works with internal cache to find already mmaped regions. A local user can create a specially crafted application that can abuse this feature and bypass implemented ASLR protection.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Glibc: 2.16 - 2.31

External links

http://sourceware.org/bugzilla/show_bug.cgi?id=22852


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.



###SIDEBAR###