Double Free in gnurl (Alpine package)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2019-5481 |
| CWE-ID | CWE-415 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
gnurl (Alpine package) Operating systems & Components / Operating system package or component |
| Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one low risk vulnerability.
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.
Install update from vendor's website.
Vulnerable software versionsgnurl (Alpine package): 7.65.3-r0
External linkshttp://git.alpinelinux.org/aports/commit/?id=6159078bc4d89ad55278438f77391a0e1068caad
http://git.alpinelinux.org/aports/commit/?id=8fd649824a89c73869a7bc156d86116635eb3871
http://git.alpinelinux.org/aports/commit/?id=c64caaa6d0cf04cf1a2a90b1b751edef900fd849
http://git.alpinelinux.org/aports/commit/?id=b77fa2226959933b28b88ca21a46b6ff5128f4f9
http://git.alpinelinux.org/aports/commit/?id=36ecea72e973a1cb6755d0b0ca25fed57b7c1cb8
http://git.alpinelinux.org/aports/commit/?id=1c04cce7036cdb842535ee6ad5f944794fc04c74
http://git.alpinelinux.org/aports/commit/?id=5b3d6caf5ec2dd362978aa3e81badf606daa76ef
Q & 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.
