SUSE update for tar
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-20193 |
| CWE-ID | CWE-401 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
SUSE Linux Enterprise Server Operating systems & Components / Operating system tar-lang Operating systems & Components / Operating system package or component tar-debugsource Operating systems & Components / Operating system package or component tar-debuginfo Operating systems & Components / Operating system package or component tar Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Memory leak
EUVDB-ID: #VU50978
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-20193
CWE-ID:
CWE-401 - Missing release of memory after effective lifetime
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due memory leak within the read_header() function in list.c. A remote attacker can pass specially crafted archive to the application and force it to leak memory, which eventually results in a denial of service condition.
MitigationUpdate the affected package tar to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Server: 12-SP5
tar-lang: before 1.27.1-15.9.1
tar-debugsource: before 1.27.1-15.9.1
tar-debuginfo: before 1.27.1-15.9.1
tar: before 1.27.1-15.9.1
External linkshttp://www.suse.com/support/update/announcement/2021/suse-su-20210975-1/
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.
