Ubuntu update for c-ares
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2024-25629 |
| CWE-ID | CWE-125 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Ubuntu Operating systems & Components / Operating system libc-ares2 (Ubuntu package) Operating systems & Components / Operating system package or component |
| Vendor | Canonical Ltd. |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Out-of-bounds read
EUVDB-ID: #VU86807
Risk: Low
CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2024-25629
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The
vulnerability exists due to a boundary error within the
ares__read_line() function when parsing local configuration files, such
as `/etc/resolv.conf`, `/etc/nsswitch.conf`, or `HOSTALIASES` file. A
local user can insert a NULL character as the first character in a new
line into one of the configuration files and crash the application.
Update the affected package c-ares to the latest version.
Vulnerable software versionsUbuntu: 16.04 - 23.10
libc-ares2 (Ubuntu package): before Ubuntu Pro
External linkshttp://ubuntu.com/security/notices/USN-6676-1
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.
