CWE-127

Buffer Under-read

The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations prior to the targeted buffer.

CVE-2020-1918 (GCVE-0-2020-1918)

Vulnerability from cvelistv5 – Published: 2021-03-10 15:50 – Updated: 2024-08-04 06:53
VLAI?
Summary
In-memory file operations (ie: using fopen on a data URI) did not properly restrict negative seeking, allowing for the reading of memory prior to the in-memory buffer. This issue affects HHVM versions prior to 4.56.3, all versions between 4.57.0 and 4.80.1, all versions between 4.81.0 and 4.93.1, and versions 4.94.0, 4.95.0, 4.96.0, 4.97.0, 4.98.0.
Severity ?
No CVSS data available.
CWE
  • CWE-127 - Buffer Under-read (CWE-127)
Assigner
Impacted products
Vendor Product Version
Facebook HHVM Unaffected: 4.98.1 , < unspecified (custom)
Affected: 4.98.0
Unaffected: 4.97.1 , < unspecified (custom)
Affected: 4.97.0
Unaffected: 4.96.1 , < unspecified (custom)
Affected: 4.96.0
Unaffected: 4.95.1 , < unspecified (custom)
Affected: 4.95.0
Unaffected: 4.94.1 , < unspecified (custom)
Affected: 4.94.0
Unaffected: 4.93.2 , < unspecified (custom)
Affected: 4.81.0 , < unspecified (custom)
Unaffected: 4.80.2 , < unspecified (custom)
Affected: 4.57.0 , < unspecified (custom)
Unaffected: 4.56.3 , < unspecified (custom)
Affected: unspecified , < 4.56.3 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2020-5360 (GCVE-0-2020-5360)

Vulnerability from cvelistv5 – Published: 2020-12-16 15:50 – Updated: 2024-09-16 22:57
VLAI?
Summary
Dell BSAFE Micro Edition Suite, versions prior to 4.5, are vulnerable to a Buffer Under-Read Vulnerability. An unauthenticated remote attacker could potentially exploit this vulnerability resulting in undefined behaviour, or a crash of the affected systems.
CWE
Assigner
Impacted products
Vendor Product Version
Dell Dell BSAFE Micro Edition Suite Affected: unspecified , < 4.5 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2024-10395 (GCVE-0-2024-10395)

Vulnerability from cvelistv5 – Published: 2025-02-03 06:59 – Updated: 2025-02-03 16:58
VLAI?
Summary
No proper validation of the length of user input in http_server_get_content_type_from_extension.
CWE
Assigner
Impacted products
Vendor Product Version
zephyrproject-rtos Zephyr Affected: * , ≤ 3.7 (git)
Create a notification for this product.
Show details on NVD website

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CVE-2024-25629 (GCVE-0-2024-25629)

Vulnerability from cvelistv5 – Published: 2024-02-23 14:52 – Updated: 2025-02-13 17:40
VLAI?
Summary
c-ares is a C library for asynchronous DNS requests. `ares__read_line()` is used to parse local configuration files such as `/etc/resolv.conf`, `/etc/nsswitch.conf`, the `HOSTALIASES` file, and if using a c-ares version prior to 1.27.0, the `/etc/hosts` file. If any of these configuration files has an embedded `NULL` character as the first character in a new line, it can lead to attempting to read memory prior to the start of the given buffer which may result in a crash. This issue is fixed in c-ares 1.27.0. No known workarounds exist.
CWE
Assigner
Impacted products
Vendor Product Version
c-ares c-ares Affected: < 1.27.0
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Show details on NVD website

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      ],
      "source": {
        "advisory": "GHSA-mg26-v6qh-x48q",
        "discovery": "UNKNOWN"
      },
      "title": "c-ares out of bounds read in ares__read_line()"
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    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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    "datePublished": "2024-02-23T14:52:24.967Z",
    "dateReserved": "2024-02-08T22:26:33.512Z",
    "dateUpdated": "2025-02-13T17:40:51.243Z",
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CVE-2025-20359 (GCVE-0-2025-20359)

Vulnerability from cvelistv5 – Published: 2025-10-15 16:17 – Updated: 2025-10-15 17:43
VLAI?
Summary
Multiple Cisco products are affected by a vulnerability in the Snort 3 HTTP Decoder that could allow an unauthenticated, remote attacker to cause the disclosure of possible sensitive data or cause the Snort 3 Detection Engine to crash. This vulnerability is due to an error in the logic of buffer handling when the MIME fields of the HTTP header are parsed. This can result in a buffer under-read. An attacker could exploit this vulnerability by sending crafted HTTP packets through an established connection that is parsed by Snort 3. A successful exploit could allow the attacker to induce one of two possible outcomes: the unexpected restarting of the Snort 3 Detection Engine, which could cause a denial of service (DoS) condition, or information disclosure of sensitive information in the Snort 3 data stream. Due to the under-read condition, it is possible that sensitive information that is not valid connection data could be returned.
CWE
Assigner
Impacted products
Vendor Product Version
Cisco Cisco Cyber Vision Affected: 3.0.0
Affected: 3.0.2
Affected: 3.0.3
Affected: 3.0.1
Affected: 3.1.0
Affected: 3.0.4
Affected: 3.1.1
Affected: 3.1.2
Affected: 3.2.0
Affected: 3.0.5
Affected: 3.2.1
Affected: 3.0.6
Affected: 3.2.2
Affected: 3.2.3
Affected: 3.2.4
Affected: 4.0.0
Affected: 4.0.1
Affected: 4.0.2
Affected: 4.0.3
Affected: 4.1.0
Affected: 4.1.1
Affected: 4.1.2
Affected: 4.1.3
Affected: 4.1.4
Affected: 4.2.0
Affected: 4.2.1
Affected: 4.1.5
Affected: 4.2.2
Affected: 4.2.X
Affected: 4.2.3
Affected: 4.2.4
Affected: 4.2.6
Affected: 4.1.6
Affected: 4.3.0
Affected: 4.3.1
Affected: 4.3.2
Affected: 4.3.3
Affected: 4.4.0
Affected: 4.4.1
Affected: 4.4.2
Affected: 4.4.3
Affected: 4.1.7
Affected: 5.0.0
Affected: 5.0.1
Affected: 5.0.2
Affected: 5.1.0
Affected: 5.1.1
Affected: 5.1.2
Affected: 5.1.3
Affected: 5.2.0
Affected: 5.2.1
Create a notification for this product.
    Cisco Cisco Secure Firewall Threat Defense (FTD) Software Affected: 7.4.1
Affected: 7.4.1.1
Affected: 7.6.0
Affected: 7.4.2
Affected: 7.4.2.1
Affected: 7.7.0
Affected: 7.4.2.2
Affected: 7.6.1
Affected: 7.4.2.3
Affected: 7.4.2.4
Create a notification for this product.
    Cisco Cisco UTD SNORT IPS Engine Software Affected: 3.17.1S
Affected: 16.12.3
Affected: 16.12.4
Affected: 17.3.1a
Affected: 16.6.6
Affected: 16.12.2
Affected: 3.17.0S
Affected: 16.6.5
Affected: 17.2.1r
Affected: 17.1.1
Affected: 16.6.7a
Affected: 16.6.1
Affected: 16.12.1a
Affected: 17.3.2
Affected: 17.4.1a
Affected: 16.12.5
Affected: 17.5.1
Affected: 16.6.9
Affected: 17.3.3
Affected: 17.5.1a
Affected: 17.3.4
Affected: 17.3.4a
Affected: 17.4.2
Affected: 17.4.1b
Affected: 17.6.1a
Affected: 16.6.10
Affected: 17.7.1a
Affected: 16.12.6
Affected: 17.6.2
Affected: 17.8.1a
Affected: 16.12.7
Affected: 17.3.5
Affected: 17.6.3
Affected: 17.6.3a
Affected: 17.7.2
Affected: 17.9.1a
Affected: 17.6.4
Affected: 17.3.6
Affected: 16.12.8
Affected: 17.3.7
Affected: 17.9.2a
Affected: 17.6.5
Affected: 17.11.1a
Affected: 17.12.1a
Affected: 17.6.6
Affected: 17.3.8
Affected: 17.3.8a
Affected: 17.6.6a
Affected: 17.12.2
Affected: 17.12.3
Affected: 17.6.7
Affected: 17.12.3a
Affected: 17.12.4
Affected: 17.6.8
Affected: 17.6.8a
Affected: 17.12.4a
Affected: 17.15.2c
Affected: 17.12.4b
Affected: 17.15.2a
Affected: 17.12.5
Affected: 17.15.3a
Affected: 17.15.3
Affected: 17.12.5b
Affected: 17.15.4
Create a notification for this product.
Show details on NVD website

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            {
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            {
              "status": "affected",
              "version": "4.4.1"
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            {
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              "version": "4.4.2"
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            {
              "status": "affected",
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            {
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          "lang": "en",
          "value": "Multiple Cisco products are affected by a vulnerability in the Snort 3 HTTP Decoder that could allow an unauthenticated, remote attacker to cause the disclosure of possible sensitive data or cause the Snort 3 Detection Engine to crash.\r\n\r\nThis vulnerability is due to an error in the logic of buffer handling when the MIME fields of the HTTP header are parsed. This can result in a buffer under-read. An attacker could exploit this vulnerability by sending crafted HTTP packets through an established connection that is parsed by Snort 3. A successful exploit could allow the attacker to induce one of two possible outcomes: the unexpected restarting of the Snort 3 Detection Engine, which could cause a denial of service (DoS) condition, or information disclosure of sensitive information in the Snort 3 data stream. Due to the under-read condition, it is possible that sensitive information that is not valid connection data could be returned."
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      "exploits": [
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          "lang": "en",
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        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 6.5,
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CVE-2025-32050 (GCVE-0-2025-32050)

Vulnerability from cvelistv5 – Published: 2025-04-03 13:36 – Updated: 2025-11-06 23:08
VLAI?
Summary
A flaw was found in libsoup. The libsoup append_param_quoted() function may contain an overflow bug resulting in a buffer under-read.
CWE
Assigner
References
https://access.redhat.com/errata/RHSA-2025:4440 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:4508 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:4560 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:4568 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:7436 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:8292 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2025-32050 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2357067 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Affected: 0 , < 3.6.1 (semver)
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:2.62.3-8.el8_10 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::appstream
    cpe:/o:redhat:enterprise_linux:8::baseos
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:2.8-3.el8_10.1 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::crb
    cpe:/a:redhat:enterprise_linux:8::appstream
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:8.10-1 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::crb
    cpe:/a:redhat:enterprise_linux:8::appstream
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:2.62.3-8.el8_10 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::appstream
    cpe:/o:redhat:enterprise_linux:8::baseos
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support Unaffected: 0:2.62.3-3.el8_8.4 , < * (rpm)
    cpe:/o:redhat:rhel_eus:8.8::baseos
    cpe:/a:redhat:rhel_eus:8.8::appstream
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:2.72.0-10.el9_6.1 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::appstream
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support Unaffected: 0:2.72.0-8.el9_2.4 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.2::appstream
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support Unaffected: 0:2.72.0-8.el9_4.4 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.4::appstream
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
Create a notification for this product.
Show details on NVD website

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No mitigation information available for this CWE.

No CAPEC attack patterns related to this CWE.

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