Staging
v0.5.1
v0.5.1
https://github.com/python/cpython
Revision 942cc04ae44825ea120e3a19a80c9b348b8194d0 authored by Ned Deily on 11 March 2018, 18:28:53 UTC, committed by larryhastings on 11 March 2018, 18:28:53 UTC
* Prevent low-grade poplib REDOS (CVE-2018-1060) The regex to test a mail server's timestamp is susceptible to catastrophic backtracking on long evil responses from the server. Happily, the maximum length of malicious inputs is 2K thanks to a limit introduced in the fix for CVE-2013-1752. A 2KB evil response from the mail server would result in small slowdowns (milliseconds vs. microseconds) accumulated over many apop calls. This is a potential DOS vector via accumulated slowdowns. Replace it with a similar non-vulnerable regex. The new regex is RFC compliant. The old regex was non-compliant in edge cases. * Prevent difflib REDOS (CVE-2018-1061) The default regex for IS_LINE_JUNK is susceptible to catastrophic backtracking. This is a potential DOS vector. Replace it with an equivalent non-vulnerable regex. Also introduce unit and REDOS tests for difflib. Co-authored-by: Tim Peters <tim.peters@gmail.com> Co-authored-by: Christian Heimes <christian@python.org>.
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Tip revision: 942cc04ae44825ea120e3a19a80c9b348b8194d0 authored by Ned Deily on 11 March 2018, 18:28:53 UTC
[3.4] bpo-32981: Fix catastrophic backtracking vulns (GH-5955) (#6035)
[3.4] bpo-32981: Fix catastrophic backtracking vulns (GH-5955) (#6035)
Tip revision: 942cc04
| File | Mode | Size |
|---|---|---|
| NEWS.d | ||
| ACKS | -rw-r--r-- | 22.7 KB |
| HISTORY | -rw-r--r-- | 1.1 MB |
| Porting | -rw-r--r-- | 1.9 KB |
| README | -rw-r--r-- | 1.4 KB |
| README.AIX | -rw-r--r-- | 5.0 KB |
| README.coverity | -rw-r--r-- | 845 bytes |
| README.valgrind | -rw-r--r-- | 4.3 KB |
| SpecialBuilds.txt | -rw-r--r-- | 10.9 KB |
| coverity_model.c | -rw-r--r-- | 2.9 KB |
| gdbinit | -rw-r--r-- | 4.7 KB |
| indent.pro | -rw-r--r-- | 557 bytes |
| python-config.in | -rw-r--r-- | 2.0 KB |
| python-config.sh.in | -rw-r--r-- | 2.9 KB |
| python-wing3.wpr | -rw-r--r-- | 555 bytes |
| python-wing4.wpr | -rw-r--r-- | 835 bytes |
| python-wing5.wpr | -rw-r--r-- | 835 bytes |
| python.man | -rw-r--r-- | 13.2 KB |
| python.pc.in | -rw-r--r-- | 293 bytes |
| svnmap.txt | -rw-r--r-- | 4.1 MB |
| valgrind-python.supp | -rw-r--r-- | 8.2 KB |
| vgrindefs | -rw-r--r-- | 500 bytes |
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