This security advisory describes one medium risk vulnerability.
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop In Lib/tarfile.py in Python. A remote attacker can create a specially crafted TAR archive leading to an infinite loop when opened by tarfile.open, because _proc_pax lacks header validation.
Install updates from vendor’s website.
Vulnerable software versions
python (Red Hat package):
2.7.5-34.el7, 2.7.5-38.el7_2, 2.7.5-48.el7, 2.7.5-58.el7, 2.7.5-59.el7_4, 2.7.5-63.el7_4, 2.7.5-69.el7_5, 2.7.5-70.el7_5, 2.7.5-74.el7_5, 2.7.5-76.el7, 2.7.5-77.el7_6, 2.7.5-80.el7_6, 2.7.5-83.el7_6, 2.7.5-86.el7, 2.7.5-87.el7_7, 2.7.5-88.el7, 2.7.5-89.el7
Red Hat Enterprise Linux for Power, little endian:
Red Hat Enterprise Linux for Power, big endian:
Red Hat Enterprise Linux for IBM z Systems:
Red Hat Enterprise Linux for Scientific Computing:
Red Hat Enterprise Linux Desktop:
Red Hat Enterprise Linux Workstation:
Red Hat Enterprise Linux Server:
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.
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