CVE-2019-17362
In LibTomCrypt through 1.18.2, the der_decode_utf8_string function (in der_decode_utf8_string.c)...
In LibTomCrypt through 1.18.2, the der_decode_utf8_string function (in der_decode_utf8_string.c) does not properly detect certain invalid UTF-8 sequences. This allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) or read information from other memory locations via carefully crafted DER-encoded data.
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
- High
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
9.1
In LibTomCrypt through 1.18.2, the der_decode_utf8_string function (in der_decode_utf8_string.c) does not properly detect certain invalid UTF-8 sequences. This allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) or read information from other memory locations via carefully crafted DER-encoded data.
- Record
CVE-2019-17362- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - CVSS 2.0
- 6.4 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:P - Weakness
- CWE-125
- Updated
- 2026-11-02
CVE List No score
In LibTomCrypt through 1.18.2, the der_decode_utf8_string function (in der_decode_utf8_string.c) does not properly detect certain invalid UTF-8 sequences. This allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) or read information from other memory locations via carefully crafted DER-encoded data.
- Record
CVE-2019-17362- Updated
- 2026-11-02
EUVDEUVD-2019-7770 No score
In LibTomCrypt through 1.18.2, the der_decode_utf8_string function (in der_decode_utf8_string.c) does not properly detect certain invalid UTF-8 sequences. This allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) or read information from other memory locations via carefully crafted DER-encoded data.
- Record
EUVD-2019-7770- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-x32c-6j92-4hp9
9.1
In LibTomCrypt through 1.18.2, the der_decode_utf8_string function (in der_decode_utf8_string.c)...
In LibTomCrypt through 1.18.2, the der_decode_utf8_string function (in der_decode_utf8_string.c) does not properly detect certain invalid UTF-8 sequences. This allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) or read information from other memory locations via carefully crafted DER-encoded data.
- Record
GHSA-x32c-6j92-4hp9- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
OSVALPINE-CVE-2019-17362
9.1
In LibTomCrypt through 1.18.2, the der_decode_utf8_string function (in der_decode_utf8_string.c) does not properly detect certain invalid UTF-8 sequences. This allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) or read information from other memory locations via carefully crafted DER-encoded data.
- Record
ALPINE-CVE-2019-17362- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - Updated
- 2026-11-03
OSVAZL-36958
9.1
CVE-2019-17362 affecting package libtomcrypt for versions less than 1.18.2-9
In LibTomCrypt through 1.18.2, the der_decode_utf8_string function (in der_decode_utf8_string.c) does not properly detect certain invalid UTF-8 sequences. This allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) or read information from other memory locations via carefully crafted DER-encoded data.
- Record
AZL-36958- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - Updated
- 2026-11-05
Show 11 moreShow less
OSVAZL-7275
9.1
CVE-2019-17362 affecting package libtomcrypt for versions less than 1.18.2-9
In LibTomCrypt through 1.18.2, the der_decode_utf8_string function (in der_decode_utf8_string.c) does not properly detect certain invalid UTF-8 sequences. This allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) or read information from other memory locations via carefully crafted DER-encoded data.
- Record
AZL-7275- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - Updated
- 2026-11-02
OSV
9.1
In LibTomCrypt through 1.18.2, the der_decode_utf8_string function (in der_decode_utf8_string.c) does not properly detect certain invalid UTF-8 sequences. This allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) or read information from other memory locations via carefully crafted DER-encoded data.
- Record
CVE-2019-17362- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2019-17362
9.1
In LibTomCrypt through 1.18.2, the der_decode_utf8_string function (in der_decode_utf8_string.c) does not properly detect certain invalid UTF-8 sequences. This allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) or read information from other memory locations via carefully crafted DER-encoded data.
- Record
DEBIAN-CVE-2019-17362- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - Updated
- 2026-11-02
OSVOESA-2021-1029
9.1
libtomcrypt security update
LibTomCrypt is a fairly comprehensive, modular and portable cryptographic toolkit that provides developers with a vast array of well known published block ciphers, one-way hash functions, chaining modes, pseudo-random number generators, public key cryptography and a plethora of other routines. \r\n\r\n Security Fix(es):\r\n\r\n In LibTomCrypt through 1.18.2, the der_decode_utf8_string function (in der_decode_utf8_string.c) does not properly detect certain invalid UTF-8 sequences. This allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) or read information from other memory locations via carefully crafted DER-encoded data.(CVE-2019-17362)\r\n\r\n
- Record
OESA-2021-1029- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2019-17362
9.1
In LibTomCrypt through 1.18.2, the der_decode_utf8_string function (in der_decode_utf8_string.c) does not properly detect certain invalid UTF-8 sequences. This allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) or read information from other memory locations via carefully crafted DER-encoded data.
- Record
UBUNTU-CVE-2019-17362- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - Updated
- 2026-11-02
OSVMGASA-2020-0028 No score
Updated libtomcrypt packages fix security vulnerability
Updated libtomcrypt packages fix security vulnerability:
Improper detection of invalid UTF-8 sequences that could have led to DoS or information disclosure via crafted DER-encoded data (CVE-2019-17362).
- Record
MGASA-2020-0028- Updated
- 2026-11-02
OSVopenSUSE-SU-2019:2454-1 No score
Security update for libtomcrypt
This update for libtomcrypt fixes the following issue:
CVE-2019-17362: Fixed an improper detection of invalid UTF-8 sequences that could have led to DoS or information disclosure via crafted DER-encoded data (bsc#1153433).
This update was imported from the SUSE:SLE-15:Update update project.
- Record
openSUSE-SU-2019:2454-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2019:2514-1 No score
Security update for libtomcrypt
This update for libtomcrypt fixes the following issue:
CVE-2019-17362: Fixed an improper detection of invalid UTF-8 sequences that could have led to DoS or information disclosure via crafted DER-encoded data (bsc#1153433).
This update was imported from the SUSE:SLE-15:Update update project.
- Record
openSUSE-SU-2019:2514-1- Updated
- 2026-11-02
OSVSUSE-SU-2019:2808-1 No score
Security update for libtomcrypt
This update for libtomcrypt fixes the following issue:
CVE-2019-17362: Fixed an improper detection of invalid UTF-8 sequences that could have led to DoS or information disclosure via crafted DER-encoded data (bsc#1153433).
- Record
SUSE-SU-2019:2808-1- Updated
- 2026-11-02
OSVSUSE-SU-2019:3095-1 No score
Security update for libtomcrypt
This update for libtomcrypt fixes the following issues:
- CVE-2019-17362: Fixed an improper detection of invalid UTF-8 sequences that could have led to DoS or information disclosure via crafted DER-encoded data (bsc#1153433).
- Record
SUSE-SU-2019:3095-1- Updated
- 2026-11-02
OSVUSN-4868-1 No score
libtomcrypt vulnerability
It was discovered that LibTomCrypt incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service or read sensitive information.
- Record
USN-4868-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
perl-cryptxAlpine:v3.18 |
before 0.079-r0 | 0.079-r0 |
perl-cryptxAlpine:v3.19 |
before 0.079-r0 | 0.079-r0 |
perl-cryptxAlpine:v3.20 |
before 0.079-r0 | 0.079-r0 |
perl-cryptxAlpine:v3.21 |
before 0.079-r0 | 0.079-r0 |
perl-cryptxAlpine:v3.22 |
before 0.079-r0 | 0.079-r0 |
perl-cryptxAlpine:v3.23 |
before 0.079-r0 | 0.079-r0 |
perl-cryptxAlpine:v3.24 |
before 0.079-r0 | 0.079-r0 |
libtomcryptAzure Linux:3 |
before 1.18.2-9 | 1.18.2-9 |
libtomcryptAzure Linux:2 |
before 1.18.2-9 | 1.18.2-9 |
libtomcryptDebian:12 |
before 1.18.2-3 | 1.18.2-3 |
Show 14 moreShow less
| Package | Affected | Fixed |
|---|---|---|
libtomcryptDebian:13 |
before 1.18.2-3 | 1.18.2-3 |
libtomcryptDebian:14 |
before 1.18.2-3 | 1.18.2-3 |
libtomcryptDebian:8 |
before 1.17-6+deb8u1, plus listed versions 1.17-6 |
1.17-6+deb8u1 |
libtomcryptMageia:7 |
before 1.18.2-2.1.mga7 | 1.18.2-2.1.mga7 |
libtomcryptopenEuler:20.03-LTS |
before 1.18.2-4.oe1 | 1.18.2-4.oe1 |
libtomcryptopenEuler:20.03-LTS-SP1 |
before 1.18.2-4.oe1 | 1.18.2-4.oe1 |
libtomcryptSUSE:Linux Enterprise Desktop 12 SP4 |
before 1.17-3.3.1 | 1.17-3.3.1 |
libtomcryptSUSE:Linux Enterprise Workstation Extension 12 SP4 |
before 1.17-3.3.1 | 1.17-3.3.1 |
libtomcryptSUSE:Linux Enterprise Workstation Extension 12 SP5 |
before 1.17-3.3.1 | 1.17-3.3.1 |
libtomcryptUbuntu:Pro:14.04:LTS |
before 1.17-5ubuntu0.1+esm1, plus listed versions 1.17-3.2ubuntu11.17-51.17-5ubuntu0.1 |
1.17-5ubuntu0.1+esm1 |
libtomcryptUbuntu:Pro:16.04:LTS |
before 1.17-7ubuntu0.1+esm1, plus listed versions 1.17-71.17-7ubuntu0.1 |
1.17-7ubuntu0.1+esm1 |
libtomcryptUbuntu:Pro:18.04:LTS |
before 1.18.1-1ubuntu0.1+esm1, plus listed versions 1.17-91.18.0-11.18.1-11.18.1-1ubuntu0.1 |
1.18.1-1ubuntu0.1+esm1 |
libtomcryptopenSUSE:Leap 15.0 |
before 1.17-lp150.2.3.1 | 1.17-lp150.2.3.1 |
libtomcryptopenSUSE:Leap 15.1 |
before 1.17-lp151.3.3.1 | 1.17-lp151.3.3.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | OSV | |
| affected | OSV | |
| 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-2019-17362 is a critical vulnerability (CVSS 9.1) in Libtom Libtomcrypt, published October 9, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.11%, the 87th percentile. Fixed in perl-cryptx 0.079-r0.
References
vuldb.com?id.142995
github.com/libtom/libtomcrypt/issues/507
github.com/libtom/libtomcrypt/pull/508
lists.debian.org/debian-lts-announce/2019/10/msg00010.html
lists.opensuse.org/opensuse-security-announce/2019-11/msg00020.html
lists.opensuse.org/opensuse-security-announce/2019-11/msg00041.html
Show 21 moreShow less
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YU5OMCY3PX54YVI4FMNDEENHDJZJ3RJW
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/47YP5SXQ4RY6KMTK2HI5ZZR244XKRMCZ
lists.fedoraproject.org/archives/list/[email protected]/message/47YP5SXQ4RY6KMTK2HI5ZZR244XKRMCZ
lists.fedoraproject.org/archives/list/[email protected]/message/YU5OMCY3PX54YVI4FMNDEENHDJZJ3RJW
nvd.nist.gov/vuln/detail/CVE-2019-17362
github.com/advisories/GHSA-x32c-6j92-4hp9
security.alpinelinux.org/vuln/CVE-2019-17362
security-tracker.debian.org/tracker/CVE-2019-17362
advisories.mageia.org/MGASA-2020-0028.html
bugs.mageia.org/show_bug.cgi?id=25808
lists.opensuse.org/opensuse-updates/2019-11/msg00093.html
openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1029
suse.com/support/update/announcement/2019/suse-su-20192808-1
bugzilla.suse.com/1153433
suse.com/security/cve/CVE-2019-17362
suse.com/support/update/announcement/2019/suse-su-20193095-1
ubuntu.com/security/CVE-2019-17362
ubuntu.com/security/notices/USN-4868-1
cve.org/CVERecord?id=CVE-2019-17362
lists.opensuse.org/archives/list/[email protected]/thread/GKJSBZBZEYMM65TFRPRHDO2WY4SXZUYR
lists.opensuse.org/archives/list/[email protected]/thread/USH7GU5DGPQAOBLAFTS57RIDHTD7ZYI6