CVE-2018-19976
published 2018-12-17CVE-2018-19976: In YARA 3.8.1, bytecode in a specially crafted compiled rule is exposed to information about its environment, in libyara/exec.c. This is a consequence of the…
PriorityP424medium5.5CVSS 3.0
AVLACLPRNUIRSUCHINAN
EPSS
1.28%
66.7th percentile
In YARA 3.8.1, bytecode in a specially crafted compiled rule is exposed to information about its environment, in libyara/exec.c. This is a consequence of the design of the YARA virtual machine.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | yara | < yara 3.8.1-2 (bookworm) | yara 3.8.1-2 (bookworm) |
| virustotal | yara | — | — |
| virustotal | yara | >= 0 < 3.8.1-2 | 3.8.1-2 |
| virustotal | yara | >= 0 < 3.8.1-2 | 3.8.1-2 |
| virustotal | yara | >= 0 < 3.8.1-2 | 3.8.1-2 |
| virustotal | yara | >= 0 < 3.8.1-2 | 3.8.1-2 |
| virustotal | yara | >= 0 < 3.4.0+dfsg-2ubuntu0.1~esm1 | 3.4.0+dfsg-2ubuntu0.1~esm1 |
| virustotal | yara | >= 0 < 3.7.1-1ubuntu2+esm1 | 3.7.1-1ubuntu2+esm1 |
| virustotal | yara | >= 0 < 3.9.0-1ubuntu0.1~esm1 | 3.9.0-1ubuntu0.1~esm1 |
CVSS provenance
nvdv3.05.5MEDIUMCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:P/I:N/A:N
osv7.5HIGH
vendor_ubuntu7.5HIGH
vendor_debian5.5MEDIUM
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Ubuntu
YARA vulnerabilities
vendor_ubuntu·2026-03-09·CVSS 7.5
CVE-2017-9304 [HIGH] YARA vulnerabilities
Title: YARA vulnerabilities
Summary: Several security issues were fixed in YARA.
Kamil Frankowicz discovered that a number of YARA's functions
generated memory exceptions when processing specially crafted
rules or files. A remote attacker could possibly use these
issues to cause YARA to crash, resulting in a denial of
service. These issues only affected Ubuntu 16.04 LTS.
(CVE-2016-10211, CVE-2017-5923, CVE-2017-5924, CVE-2017-8294,
CVE-2017-8929, CVE-2017-9304, CVE-2017-9438, CVE-2017-9465)
Jurriaan Bremer discovered that YARA's yr_object_array_set_limit()
function could result in a heap buffer overflow when scanning
specially crafted .NET files. A remote attacker could possibly use
this issue to cause YARA to crash, resulting in a denial of service.
This issue only affected Ubuntu 16.0
Debian
CVE-2018-19976: yara - In YARA 3.8.1, bytecode in a specially crafted compiled rule is exposed to infor...
vendor_debian·2018·CVSS 5.5
CVE-2018-19976 [MEDIUM] CVE-2018-19976: yara - In YARA 3.8.1, bytecode in a specially crafted compiled rule is exposed to infor...
In YARA 3.8.1, bytecode in a specially crafted compiled rule is exposed to information about its environment, in libyara/exec.c. This is a consequence of the design of the YARA virtual machine.
Scope: local
bookworm: resolved (fixed in 3.8.1-2)
bullseye: resolved (fixed in 3.8.1-2)
forky: resolved (fixed in 3.8.1-2)
sid: resolved (fixed in 3.8.1-2)
trixie: resolved (fixed in 3.8.1-2)
OSV
yara vulnerabilities
osv·2026-03-09·CVSS 7.5
CVE-2016-10211 [HIGH] yara vulnerabilities
yara vulnerabilities
Kamil Frankowicz discovered that a number of YARA's functions
generated memory exceptions when processing specially crafted
rules or files. A remote attacker could possibly use these
issues to cause YARA to crash, resulting in a denial of
service. These issues only affected Ubuntu 16.04 LTS.
(CVE-2016-10211, CVE-2017-5923, CVE-2017-5924, CVE-2017-8294,
CVE-2017-8929, CVE-2017-9304, CVE-2017-9438, CVE-2017-9465)
Jurriaan Bremer discovered that YARA's yr_object_array_set_limit()
function could result in a heap buffer overflow when scanning
specially crafted .NET files. A remote attacker could possibly use
this issue to cause YARA to crash, resulting in a denial of service.
This issue only affected Ubuntu 16.04 LTS. (CVE-2017-11328)
It was discovered that YARA's yr_exe
GHSA
GHSA-wrpm-24mf-gq6c: In YARA 3
ghsa_unreviewed·2022-05-13
CVE-2018-19976 [MEDIUM] CWE-200 GHSA-wrpm-24mf-gq6c: In YARA 3
In YARA 3.8.1, bytecode in a specially crafted compiled rule is exposed to information about its environment, in libyara/exec.c. This is a consequence of the design of the YARA virtual machine.
OSV
CVE-2018-19976: In YARA 3
osv·2018-12-17·CVSS 5.5
CVE-2018-19976 [MEDIUM] CVE-2018-19976: In YARA 3
In YARA 3.8.1, bytecode in a specially crafted compiled rule is exposed to information about its environment, in libyara/exec.c. This is a consequence of the design of the YARA virtual machine.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-19974 CVE-2018-19975 CVE-2018-19976 yara: Multiple issues
bugzilla·2018-12-18·CVSS 5.5
CVE-2018-19974 [MEDIUM] CVE-2018-19974 CVE-2018-19975 CVE-2018-19976 yara: Multiple issues
CVE-2018-19974 CVE-2018-19975 CVE-2018-19976 yara: Multiple issues
CVE-2018-19974
In YARA 3.8.1, bytecode in a specially crafted compiled rule can read uninitialized data from VM scratch memory in libyara/exec.c. This can allow attackers to discover addresses in the real stack (not the YARA virtual stack).
https://github.com/VirusTotal/yara/issues/999
CVE-2018-19975
In YARA 3.8.1, bytecode in a specially crafted compiled rule can read data from any arbitrary address in memory, in libyara/exec.c. Specifically, OP_COUNT can read a DWORD.
https://github.com/VirusTotal/yara/issues/999
CVE-2018-19976
In YARA 3.8.1, bytecode in a specially crafted compiled rule is exposed to information about its environment, in libyara/exec.c. This is a consequence of the design of the YARA virtual mach
Bugzilla
CVE-2018-19974 CVE-2018-19975 CVE-2018-19976 yara: Multiple issues [fedora-all]
bugzilla·2018-12-18·CVSS 5.5
CVE-2018-19974 [MEDIUM] CVE-2018-19974 CVE-2018-19975 CVE-2018-19976 yara: Multiple issues [fedora-all]
CVE-2018-19974 CVE-2018-19975 CVE-2018-19976 yara: Multiple issues [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 message.
NOTE: this issue affects multiple supported versio
Bugzilla
CVE-2018-19974 CVE-2018-19975 CVE-2018-19976 yara: Multiple issues [epel-all]
bugzilla·2018-12-18·CVSS 5.5
CVE-2018-19974 [MEDIUM] CVE-2018-19974 CVE-2018-19975 CVE-2018-19976 yara: Multiple issues [epel-all]
CVE-2018-19974 CVE-2018-19975 CVE-2018-19976 yara: Multiple issues [epel-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 epel-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 message.
NOTE: this issue affects multiple supported versions o
https://bnbdr.github.io/posts/extracheese/https://github.com/VirusTotal/yara/issues/999https://github.com/bnbdr/swisscheese/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DFFXDAMP6GJ337LIOTVF5I4T6QGMN3ZR/https://bnbdr.github.io/posts/extracheese/https://github.com/VirusTotal/yara/issues/999https://github.com/bnbdr/swisscheese/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DFFXDAMP6GJ337LIOTVF5I4T6QGMN3ZR/
2018-12-17
Published