CVE-2019-19648
Out-of-bounds read in YARA
In the macho_parse_file functionality in macho/macho.c of YARA 3.11.0, command_size may be inconsistent with the real size. A specially crafted MachO file can cause an out-of-bounds memory access, resulting in Denial of Service (application crash) or potential code execution.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
In the macho_parse_file functionality in macho/macho.c of YARA 3.11.0, command_size may be inconsistent with the real size. A specially crafted MachO file can cause an out-of-bounds memory access, resulting in Denial of Service (application crash) or potential code execution.
- Record
CVE-2019-19648- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-125
- Updated
- 2026-11-02
CVE List No score
In the macho_parse_file functionality in macho/macho.c of YARA 3.11.0, command_size may be inconsistent with the real size. A specially crafted MachO file can cause an out-of-bounds memory access, resulting in Denial of Service (application crash) or potential code execution.
- Record
CVE-2019-19648- Updated
- 2026-11-02
EUVDEUVD-2019-9258 No score
In the macho_parse_file functionality in macho/macho.c of YARA 3.11.0, command_size may be inconsistent with the real size. A specially crafted MachO file can cause an out-of-bounds memory access, resulting in Denial of Service (application crash) or potential code execution.
- Record
EUVD-2019-9258- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-7fcj-v5v7-gm5g
Out-of-bounds read in YARA
In the macho_parse_file functionality in macho/macho.c of YARA 3.11.0, command_size may be inconsistent with the real size. A specially crafted MachO file can cause an out-of-bounds memory access, resulting in Denial of Service (application crash) or potential code execution.
- Record
GHSA-7fcj-v5v7-gm5g- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
OSV
In the macho_parse_file functionality in macho/macho.c of YARA 3.11.0, command_size may be inconsistent with the real size. A specially crafted MachO file can cause an out-of-bounds memory access, resulting in Denial of Service (application crash) or potential code execution.
- Record
CVE-2019-19648- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2019-19648
In the macho_parse_file functionality in macho/macho.c of YARA 3.11.0, command_size may be inconsistent with the real size. A specially crafted MachO file can cause an out-of-bounds memory access, resulting in Denial of Service (application crash) or potential code execution.
- Record
DEBIAN-CVE-2019-19648- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2019-19648
In the macho_parse_file functionality in macho/macho.c of YARA 3.11.0, command_size may be inconsistent with the real size. A specially crafted MachO file can cause an out-of-bounds memory access, resulting in Denial of Service (application crash) or potential code execution.
- Record
UBUNTU-CVE-2019-19648- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
yaraDebian:12 |
All versions, plus listed versions 4.2.3-44.3.0-14.3.2-14.4.0-14.5.0-1 Show 11 moreShow less4.5.0-1~bpo12+14.5.1-14.5.1-1~bpo12+14.5.2-14.5.2-1~bpo12+14.5.3-14.5.4-14.5.5-14.5.6-14.5.7-14.5.8-1 |
None known |
yaraDebian:13 |
All versions, plus listed versions 4.5.2-14.5.3-14.5.4-14.5.5-14.5.6-14.5.7-14.5.8-1 |
None known |
yaraDebian:14 |
All versions, plus listed versions 4.5.2-14.5.3-14.5.4-14.5.5-14.5.6-14.5.7-14.5.8-1 |
None known |
yaraUbuntu:Pro:20.04:LTS |
before 3.9.0-1ubuntu0.1~esm1, plus listed versions 3.9.0-1 |
3.9.0-1ubuntu0.1~esm1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-19648 is a high vulnerability (CVSS 7.8) in Virustotal Yara, published December 9, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.54%, the 75th percentile. Fixed in yara 3.9.0-1ubuntu0.1~esm1.
References
github.com/VirusTotal/yara/issues/1178
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XXM224OLGI6KAOROLDPPGGCZ2OQVQ6HH
nvd.nist.gov/vuln/detail/CVE-2019-19648