Home/CVE/CPython (aka Python) up to 2.7.13 is vulnerable to an integer overflow in the PyString_DecodeEscape function in stringob
CVE

CVE-2017-1000158

CPython (aka Python) up to 2.7.13 is vulnerable to an integer overflow in the PyString_DecodeEscape function in stringob

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)

CRITICAL · CVSS 9.8 EPSS 0.0359
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules8 YARA rules0
⬡

Weakness Classification

CWE-190Integer Overflow or Wraparound
▤

Affected Products & Versions

4
python< 2.7.15
python>= 3.4.0 and < 3.4.8
python>= 3.5.0 and < 3.5.5
debian linuxall versions
◈

Sigma Hunt Rules

8
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighPython Reverse Shell Execution Via PTY And Socket Modules
producthighInline Python Execution - Spawn Shell Via OS System Library
producthighPython One-Liners with Base64 Decoding - Linux
producthighPython Function Execution Security Warning Disabled In Excel
producthighPython One-Liners with Base64 Decoding
producthighPython Spawning Pretty TTY on Windows
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD17 Nov 2017 · 05:29 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

8
suse-csafopenSUSE-SU-2024:11202-1
suse-csafSUSE-SU-2020:0497-1
suse-csafSUSE-SU-2020:0234-1
suse-csafSUSE-SU-2018:1372-1
suse-csafSUSE-SU-2018:0768-1
🔗

References & Sources

9
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.securitytracker.com/id/1039890Third Party AdvisoryVDB Entry
https://bugs.python.org/issue30657Issue TrackingPatchVendor Advisory
https://lists.debian.org/debian-lts-announce/2017/11/msg00035.htmlMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2017/11/msg00036.htmlMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00030.htmlMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00031.htmlMailing ListThird Party Advisory
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