Vulnerability identifier: #VU17881
Vulnerability risk: Low
CVSSv3.1: 5 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-121
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
Glibc
Universal components / Libraries /
Libraries used by multiple products
Vendor: GNU
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to boundary error in check_dst_limits_calc_pos_1() function in posix/regexec.c. A local user can pass specially crafted arguments to the application, trigger stack overflow and perform denial of service attack.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Glibc: 1.02 - 2.29
External links
http://debbugs.gnu.org/cgi/bugreport.cgi?bug=34141
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.