Bug 1588663 (CVE-2018-11697) - CVE-2018-11697 libsass: Heap buffer over-read in Sass::Prelexer::exactly in lexer.hpp
Summary: CVE-2018-11697 libsass: Heap buffer over-read in Sass::Prelexer::exactly in l...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-11697
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1588664 1588665 1588666
Blocks: 1754498
TreeView+ depends on / blocked
 
Reported: 2018-06-07 17:15 UTC by Pedro Sampaio
Modified: 2021-10-25 09:54 UTC (History)
2 users (show)

Fixed In Version: libsass 3.6.0
Clone Of:
Environment:
Last Closed: 2021-10-25 09:54:47 UTC
Embargoed:

Attachments (Terms of Use)

Description Pedro Sampaio 2018-06-07 17:15:59 UTC 
An issue was discovered in Libsass through 3.5.4. An out-of-bounds read of a memory region was found in the function Sass::Prelexer::exactly() which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service.

Upstream issue:

https://github.com/sass/libsass/issues/2656
Comment 1 Pedro Sampaio 2018-06-07 17:16:29 UTC 
Created libsass tracking bugs for this issue:

Affects: epel-7 [bug 1588664]
Affects: fedora-all [bug 1588666]
Comment 3 Riccardo Schirone 2020-01-14 16:38:26 UTC 
Upstream fix:
https://github.com/sass/libsass/commit/eb15533b07773c30dc03c9d742865604f47120ef
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