CVE-2019-18197
libxslt: use after free in xsltCopyText in transform.c could lead to information disclosure
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
In xsltCopyText in transform.c in libxslt 1.1.33, a pointer variable isn't reset under certain circumstances. If the relevant memory area happened to be freed and reused in a certain way, a bounds check could fail and memory outside a buffer could be written to, or uninitialized data could be disclosed.
En la función xsltCopyText en el archivo transform.c en libxslt versión 1.1.33, una variable de puntero no se restablece bajo determinadas circunstancias. Si el área de memoria relevante se liberó y reutilizó de cierta manera, una comprobación de límites podría fallar y podría escribirse la memoria fuera de un búfer o podrían divulgarse datos no inicializados.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2019-10-18 CVE Reserved
- 2019-10-18 CVE Published
- 2024-02-11 EPSS Updated
- 2024-08-05 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-416: Use After Free
- CWE-908: Use of Uninitialized Resource
CAPEC
References (17)
| URL | Tag | Source |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2019/11/17/2 | Mailing List |
|
| https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15746 | Issue Tracking | |
| https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15768 | Issue Tracking | |
| https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15914 | Issue Tracking | |
| https://lists.debian.org/debian-lts-announce/2019/10/msg00037.html | Mailing List |
|
| https://security.netapp.com/advisory/ntap-20191031-0004 | Third Party Advisory |
|
| https://security.netapp.com/advisory/ntap-20200416-0004 | X_refsource_confirm |
|
| https://www.oracle.com/security-alerts/cpuapr2020.html | X_refsource_misc |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://gitlab.gnome.org/GNOME/libxslt/commit/2232473733b7313d67de8836ea3b29eec6e8e285 | 2020-08-24 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Xmlsoft Search vendor "Xmlsoft" | Libxslt Search vendor "Xmlsoft" for product "Libxslt" | 1.1.33 Search vendor "Xmlsoft" for product "Libxslt" and version "1.1.33" | - |
Affected
| in | Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | - | - |
Safe
|
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04" | esm |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04" | esm |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | lts |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04" | lts |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 19.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "19.04" | - |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 19.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "19.10" | - |
Affected
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| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0" | - |
Affected
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