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CVE-2017-9227

Publication date 24 May 2017

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in PHP through 7.1.5. A stack out-of-bounds read occurs in mbc_enc_len() during regular expression searching. Invalid handling of reg->dmin in forward_search_range() could result in an invalid pointer dereference, as an out-of-bounds read from a stack buffer.

From the Ubuntu Security Team

It was discovered that Oniguruma incorrectly handled certain regular expressions. An attacker could possibly use this issue to obtain sensitive information, cause a denial of service or execute arbitrary code.

Status

Package Ubuntu Release Status
libonig 18.04 LTS bionic
Fixed 6.3.0-1
17.10 artful Ignored end of life
17.04 zesty Ignored end of life
16.10 yakkety Ignored end of life
16.04 LTS xenial
Fixed 5.9.6-1ubuntu0.1
14.04 LTS trusty
Fixed 5.9.1-1ubuntu1.1
php5 18.04 LTS bionic Not in release
17.10 artful Not in release
17.04 zesty Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty
Fixed 5.5.9+dfsg-1ubuntu4.22
php7.0 18.04 LTS bionic Not in release
17.10 artful Not in release
17.04 zesty
Fixed 7.0.22-0ubuntu0.17.04.1
16.04 LTS xenial
Fixed 7.0.22-0ubuntu0.16.04.1
14.04 LTS trusty Not in release
php7.1 18.04 LTS bionic Not in release
17.10 artful
Fixed 7.1.8-1ubuntu1
17.04 zesty Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
libonig
php5
php7.0
php7.1

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references