Integer overflow in Python
CVE-2017-1000158
CPython (aka Python) up to 2.7.13 is vulnerable to an integer overflow in the PyString_DecodeEscape function in stringobject.c, resulting in heap-based buffer overflow (and possible arbitrary code execution)
Vulnerability class: Integer Overflow
EPSS: 0.036 (88.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Python
- Debian Debian_linux — versions 7.0, 8.0, 9.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
- cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
- cve@mitre.org (Patch, Issue Tracking, Vendor Advisory)
- cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry)
- cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
- cve@mitre.org (vendor-advisory, Third Party Advisory)
- cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
- cve@mitre.org (vendor-advisory, Third Party Advisory)
- cve@mitre.org
Frequently asked questions
- What is CVE-2017-1000158?
- CVE-2017-1000158 is a critical-severity vulnerability in Python, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2017-11-17.
- How severe is CVE-2017-1000158?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-1000158 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.