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ubuntucveUbuntu.comUB:CVE-2014-8964
HistoryDec 16, 2014 - 12:00 a.m.

CVE-2014-8964

2014-12-1600:00:00
ubuntu.com
ubuntu.com
11

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.029 Low

EPSS

Percentile

90.6%

Heap-based buffer overflow in PCRE 8.36 and earlier allows remote attackers
to cause a denial of service (crash) or have other unspecified impact via a
crafted regular expression, related to an assertion that allows zero
repeats.

Bugs

Notes

Author Note
seth-arnold exploiting this requires allowing untrusted input as the regular expression; that’s usually not allowed for performance reasons but the regex engine shouldn’t allow overflows on untrusted inputs.
mdeslaur reproducer in upstream bug does not reproduce in precise
OSVersionArchitecturePackageVersionFilename
ubuntu15.04noarchmariadb-10.0< 10.0.20-0ubuntu0.15.04.1UNKNOWN
ubuntu15.10noarchmariadb-10.0< 10.0.20-0ubuntu0.15.04.1UNKNOWN
ubuntu14.04noarchpcre3< 1:8.31-2ubuntu2.1UNKNOWN

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.029 Low

EPSS

Percentile

90.6%