CVE-2018-19837
published 2018-12-04CVE-2018-19837: In LibSass prior to 3.5.5, Sass::Eval::operator()(Sass::Binary_Expression*) inside eval.cpp allows attackers to cause a denial-of-service resulting from stack…
PriorityP425medium6.5CVSS 3.0
AVNACLPRNUIRSUCNINAH
EPSS
1.81%
76.0th percentile
In LibSass prior to 3.5.5, Sass::Eval::operator()(Sass::Binary_Expression*) inside eval.cpp allows attackers to cause a denial-of-service resulting from stack consumption via a crafted sass file, because of certain incorrect parsing of '%' as a modulo operator in parser.cpp.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | libsass | < libsass 3.5.4+20180621~c0a6cf3-1 (bookworm) | libsass 3.5.4+20180621~c0a6cf3-1 (bookworm) |
| libsass | libsass | >= 0 < 3.5.4+20180621~c0a6cf3-1 | 3.5.4+20180621~c0a6cf3-1 |
| libsass | libsass | >= 0 < 3.5.4+20180621~c0a6cf3-1 | 3.5.4+20180621~c0a6cf3-1 |
| libsass | libsass | >= 0 < 3.5.4+20180621~c0a6cf3-1 | 3.5.4+20180621~c0a6cf3-1 |
| libsass | libsass | >= 0 < 3.5.4+20180621~c0a6cf3-1 | 3.5.4+20180621~c0a6cf3-1 |
| sass-lang | libsass | < 3.5.5 | 3.5.5 |
CVSS provenance
nvdv3.06.5MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
osv6.5MEDIUM
vendor_debian6.5MEDIUM
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GHSA
GHSA-c774-r78g-7qj4: In LibSass prior to 3
ghsa_unreviewed·2022-05-14
CVE-2018-19837 [MEDIUM] CWE-400 GHSA-c774-r78g-7qj4: In LibSass prior to 3
In LibSass prior to 3.5.5, Sass::Eval::operator()(Sass::Binary_Expression*) inside eval.cpp allows attackers to cause a denial-of-service resulting from stack consumption via a crafted sass file, because of certain incorrect parsing of '%' as a modulo operator in parser.cpp.
OSV
CVE-2018-19837: In LibSass prior to 3
osv·2018-12-04·CVSS 6.5
CVE-2018-19837 [MEDIUM] CVE-2018-19837: In LibSass prior to 3
In LibSass prior to 3.5.5, Sass::Eval::operator()(Sass::Binary_Expression*) inside eval.cpp allows attackers to cause a denial-of-service resulting from stack consumption via a crafted sass file, because of certain incorrect parsing of '%' as a modulo operator in parser.cpp.
Debian
CVE-2018-19837: libsass - In LibSass prior to 3.5.5, Sass::Eval::operator()(Sass::Binary_Expression*) insi...
vendor_debian·2018·CVSS 6.5
CVE-2018-19837 [MEDIUM] CVE-2018-19837: libsass - In LibSass prior to 3.5.5, Sass::Eval::operator()(Sass::Binary_Expression*) insi...
In LibSass prior to 3.5.5, Sass::Eval::operator()(Sass::Binary_Expression*) inside eval.cpp allows attackers to cause a denial-of-service resulting from stack consumption via a crafted sass file, because of certain incorrect parsing of '%' as a modulo operator in parser.cpp.
Scope: local
bookworm: resolved (fixed in 3.5.4+20180621~c0a6cf3-1)
bullseye: resolved (fixed in 3.5.4+20180621~c0a6cf3-1)
forky: resolved (fixed in 3.5.4+20180621~c0a6cf3-1)
sid: resolved (fixed in 3.5.4+20180621~c0a6cf3-1)
trixie: resolved (fixed in 3.5.4+20180621~c0a6cf3-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-19837 libsass: Stack consumption in Sass::Eval::operator() resulting in a denial of service
bugzilla·2019-01-31·CVSS 6.5
CVE-2018-19837 [MEDIUM] CVE-2018-19837 libsass: Stack consumption in Sass::Eval::operator() resulting in a denial of service
CVE-2018-19837 libsass: Stack consumption in Sass::Eval::operator() resulting in a denial of service
In LibSass prior to 3.5.5, Sass::Eval::operator()(Sass::Binary_Expression*) inside eval.cpp allows attackers to cause a denial-of-service resulting from stack consumption via a crafted sass file, because of certain incorrect parsing of '%' as a modulo operator in parser.cpp.
Upstream issue:
https://github.com/sass/libsass/issues/2659
Upstream patch:
https://github.com/sass/libsass/commit/210fdff7a65370c2ae24e022a2b35da8c423cc5f
Discussion:
Created libsass tracking bugs for this issue:
Affects: epel-7 [bug 1671396]
Affects: fedora-all [bug 1671395]
Bugzilla
CVE-2018-19797 CVE-2018-19826 CVE-2018-19827 CVE-2018-19837 CVE-2018-19838 CVE-2018-19839 CVE-2018-20190 libsass: various flaws [epel-7]
bugzilla·2019-01-31·CVSS 6.5
CVE-2018-19797 [MEDIUM] CVE-2018-19797 CVE-2018-19826 CVE-2018-19827 CVE-2018-19837 CVE-2018-19838 CVE-2018-19839 CVE-2018-20190 libsass: various flaws [epel-7]
CVE-2018-19797 CVE-2018-19826 CVE-2018-19827 CVE-2018-19837 CVE-2018-19838 CVE-2018-19839 CVE-2018-20190 libsass: various flaws [epel-7]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of epel-7.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message
Bugzilla
CVE-2018-19797 CVE-2018-19826 CVE-2018-19827 CVE-2018-19837 CVE-2018-19838 CVE-2018-19839 CVE-2018-20190 libsass: various flaws [fedora-all]
bugzilla·2019-01-31·CVSS 6.5
CVE-2018-19797 [MEDIUM] CVE-2018-19797 CVE-2018-19826 CVE-2018-19827 CVE-2018-19837 CVE-2018-19838 CVE-2018-19839 CVE-2018-20190 libsass: various flaws [fedora-all]
CVE-2018-19797 CVE-2018-19826 CVE-2018-19827 CVE-2018-19837 CVE-2018-19838 CVE-2018-19839 CVE-2018-20190 libsass: various flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00047.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-07/msg00051.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-08/msg00027.htmlhttps://github.com/sass/libsass/commit/210fdff7a65370c2ae24e022a2b35da8c423cc5fhttps://github.com/sass/libsass/issues/2659http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00047.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-07/msg00051.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-08/msg00027.htmlhttps://github.com/sass/libsass/commit/210fdff7a65370c2ae24e022a2b35da8c423cc5fhttps://github.com/sass/libsass/issues/2659
2018-12-04
Published