Fedora 29 update for cronie
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2019-9704 CVE-2019-9705 |
| CWE-ID | CWE-252 CWE-770 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software |
Fedora Operating systems & Components / Operating system cronie Operating systems & Components / Operating system package or component |
| Vendor | Fedoraproject |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Unchecked Return Value
EUVDB-ID: #VU63055
Risk: Low
CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2019-9704
CWE-ID:
CWE-252 - Unchecked Return Value
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to the calloc return value is not checked. A local user can create a large crontab file and crash the daemon.
Install updates from vendor's repository.
Vulnerable software versionsFedora: 29
cronie: before 1.5.4-1.fc29
CPE2.3 External linkshttps://bodhi.fedoraproject.org/updates/FEDORA-2019-7104a00054
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.
2) Allocation of Resources Without Limits or Throttling
EUVDB-ID: #VU63054
Risk: Low
CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2019-9705
CWE-ID:
CWE-770 - Allocation of Resources Without Limits or Throttling
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to Vixie Cron implementation allows unlimited number of lines to be inserted into the crontab file. A local user can create a very large crontab file and consume all available memory on the system.
Install updates from vendor's repository.
Vulnerable software versionsFedora: 29
cronie: before 1.5.4-1.fc29
CPE2.3 External linkshttps://bodhi.fedoraproject.org/updates/FEDORA-2019-7104a00054
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.
