tarfile opened in streaming mode mishandles EOF
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.2epss 0.4%
exploitation probability
0.4%top 63% of all CVEs
observed exploitation
nono source reports it
When using the "tarfile" module with a file opened in "streaming mode" (mode="r|") the tarfile module did not properly handle EOF, making archive parsing take exponentially longer.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
Python Software Foundation · CPythonReferences
https://github.com/python/cpython/commit/3f031d431f80668e14f3bc066bbf4369cd9281b9https://github.com/python/cpython/commit/4ce6bf7c8aa7725828a38981c306f214c1f29365https://github.com/python/cpython/commit/7f0dc59c9a70f8f3b4da33d7c4a2ba552a7acc21https://github.com/python/cpython/commit/e86666c9dd256d52d0fbef6feb1ea4a51768fdechttps://github.com/python/cpython/commit/eb63c0f94dfcbea7fda8eab6213818e134d67192https://github.com/python/cpython/commit/f50bf13566189c8d0ce5a814f33eff3d89951896https://github.com/python/cpython/commit/f5e2776ff0383a902c12acf2b703e7e951fc8438https://github.com/python/cpython/issues/151981https://github.com/python/cpython/pull/151982https://mail.python.org/archives/list/security-announce@python.org/thread/AXPSKKTSRKXTTJULW3XSIC74WZNAAPPB/