CVE-2019-15549
Memory exhaustion in asn1_der
An issue was discovered in the asn1_der crate before 0.6.2 for Rust. Attackers can trigger memory exhaustion by supplying a large value in a length field.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
An issue was discovered in the asn1_der crate before 0.6.2 for Rust. Attackers can trigger memory exhaustion by supplying a large value in a length field.
- Record
CVE-2019-15549- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-400
- Updated
- 2026-11-02
CVE List No score
An issue was discovered in the asn1_der crate before 0.6.2 for Rust. Attackers can trigger memory exhaustion by supplying a large value in a length field.
- Record
CVE-2019-15549- Updated
- 2026-11-02
EUVDEUVD-2021-1884 No score
An issue was discovered in the asn1_der crate before 0.6.2 for Rust. Attackers can trigger memory exhaustion by supplying a large value in a length field.
- Record
EUVD-2021-1884- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-v5r6-6r3c-wqxc
Memory exhaustion in asn1_der
An issue was discovered in the asn1_der crate before 0.6.2 for Rust. Attackers can trigger memory exhaustion by supplying a large value in a length field.
- Record
GHSA-v5r6-6r3c-wqxc- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
OSVGHSA-v5r6-6r3c-wqxc
Memory exhaustion in asn1_der
An issue was discovered in the asn1_der crate before 0.6.2 for Rust. Attackers can trigger memory exhaustion by supplying a large value in a length field.
- Record
GHSA-v5r6-6r3c-wqxc- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
OSVRUSTSEC-2019-0007
Processing of maliciously crafted length fields causes memory allocation SIGABRTs
Affected versions of this crate tried to preallocate a vector for an arbitrary amount of bytes announced by the ASN.1-DER length field without further checks.
This allows an attacker to trigger a SIGABRT by creating length fields that announce more bytes than the allocator can provide.
The flaw was corrected by not preallocating memory.
- Record
RUSTSEC-2019-0007- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
Affected packages
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-2019-15549 is a high vulnerability (CVSS 7.5) in Asn1 Der Project Der, published June 13, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.38%, the 72nd percentile. Fixed in asn1_der 0.6.2.