CVE-2017-12883

Advisory lineage Upstream: 0 Downstream: 10
Modified
Published: 19 Sept 2017, 18:00
Last modified:05 Aug 2024, 18:51

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.1 CRITICAL
v3.0 (nvd)
EPSS Score
4.71% LOW
5% probability +0.20%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

19 Sept 2017, 18:00
Published
Vulnerability first disclosed
05 Aug 2024, 18:51
Last Modified
Vulnerability information updated

Description

Buffer overflow in the S_grok_bslash_N function in regcomp.c in Perl 5 before 5.24.3-RC1 and 5.26.x before 5.26.1-RC1 allows remote attackers to disclose sensitive information or cause a denial of service (application crash) via a crafted regular expression with an invalid '\N{U+...}' escape.

CVSS Metrics

  • v3.0•CRITICAL•Score: 9.1CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
  • v2.0•MEDIUM•Score: 6.4AV:N/AC:L/Au:N/C:P/I:N/A:P

EPSS Trends

Current EPSS score: 4.71%• Percentile: 90%

Techniques & Countermeasures

  • CWE-119•Improper Restriction of Operations within the Bounds of a Memory Buffer

    The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Affected Systems

  • perl•perl

    ≤ 5.24.2 | 5.26.0

References (10)