Risk | High |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2023-39804 |
CWE-ID | CWE-121 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Tar Client/Desktop applications / Software for archiving |
Vendor | GNU |
Security Bulletin
This security bulletin contains one high risk vulnerability.
EUVDB-ID: #VU84035
Risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-39804
CWE-ID:
CWE-121 - Stack-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 xattr_decoder() function in xheader.c. A remote attacker can trick the victim to open a specially crafted tar/pax archive with an overly long xattr key, trigger a stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsTar: 1.0 - 1.34
External linkshttp://git.savannah.gnu.org/cgit/tar.git/commit/?id=a339f05cd269013fa133d2f148d73f6f7d4247e4
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to open a a specially crafted archive.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.