Ubuntu update for curl
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2019-5481 CVE-2019-5482 |
| CWE-ID | CWE-415 CWE-122 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
curl (Ubuntu package) Operating systems & Components / Operating system package or component |
| Vendor | Canonical Ltd. |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Double Free
EUVDB-ID: #VU21058
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-5481
CWE-ID:
CWE-415 - Double Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform denial of service (DoS) attack.
The vulnerability exists due to a boundary error when processing very large blocks during Kerberos FTP data transfer. A remote attacker that controls malicious FTP server can send large blocks of data to the curl client, trigger a double-free error and crash the application.
Update the affected packages.
- Ubuntu 19.04
- curl - 7.64.0-2ubuntu1.2
- libcurl3-gnutls - 7.64.0-2ubuntu1.2
- libcurl3-nss - 7.64.0-2ubuntu1.2
- libcurl4 - 7.64.0-2ubuntu1.2
- Ubuntu 18.04 LTS
- curl - 7.58.0-2ubuntu3.8
- libcurl3-gnutls - 7.58.0-2ubuntu3.8
- libcurl3-nss - 7.58.0-2ubuntu3.8
- libcurl4 - 7.58.0-2ubuntu3.8
- Ubuntu 16.04 LTS
- curl - 7.47.0-1ubuntu2.14
- libcurl3 - 7.47.0-1ubuntu2.14
- libcurl3-gnutls - 7.47.0-1ubuntu2.14
- libcurl3-nss - 7.47.0-1ubuntu2.14
curl (Ubuntu package): 7.47.0-1ubuntu2.1 - 7.64.0-2ubuntu1.1
External linksQ & 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.
2) Heap-based buffer overflow
EUVDB-ID: #VU21059
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-5482
CWE-ID:
CWE-122 - Heap-based Buffer Overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the tftp_receive_packet() function when processing TFTP data. A remote attacker can send specially crafted TFTP response to the vulnerable curl client, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationUpdate the affected packages.
- Ubuntu 19.04
- curl - 7.64.0-2ubuntu1.2
- libcurl3-gnutls - 7.64.0-2ubuntu1.2
- libcurl3-nss - 7.64.0-2ubuntu1.2
- libcurl4 - 7.64.0-2ubuntu1.2
- Ubuntu 18.04 LTS
- curl - 7.58.0-2ubuntu3.8
- libcurl3-gnutls - 7.58.0-2ubuntu3.8
- libcurl3-nss - 7.58.0-2ubuntu3.8
- libcurl4 - 7.58.0-2ubuntu3.8
- Ubuntu 16.04 LTS
- curl - 7.47.0-1ubuntu2.14
- libcurl3 - 7.47.0-1ubuntu2.14
- libcurl3-gnutls - 7.47.0-1ubuntu2.14
- libcurl3-nss - 7.47.0-1ubuntu2.14
curl (Ubuntu package): 7.47.0-1ubuntu2.1 - 7.64.0-2ubuntu1.1
External linksQ & 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.
