Weakness (CWE)
CWE-125: Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
How to prevent it (2 mitigations)
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Implementation
Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
To reduce the likelihood of introducing an out-of-bounds read, ensure that you validate and ensure correct calculations for any length argument, buffer size calculation, or offset. Be especially careful of relying on a sentinel (i.e. special character such as NUL) in untrusted inputs.
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Architecture and Design
Use a language that provides appropriate memory abstractions.
Source: MITRE CWE-125
2,840 results · Clear filters · Feed
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Medium 5.3
An exploitable information disclosure vulnerability exists in the packet-parsing functionality of Blynk-Library v0.6.1.…
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Medium 6.5
In libexpat before 2.2.8, crafted XML input could fool the parser into changing from DTD parsing to document parsing to…
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Medium 5.3
An exploitable information disclosure vulnerability exists in the Weave Legacy Pairing functionality of Nest Cam IQ Ind…
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Medium 5.5CVE-2019-1148 Public exploit
Microsoft Graphics Component Information Disclosure Vulnerability
An information disclosure vulnerability exists when the Microsoft Windows Graphics Component improperly handles objects in memory. An attacker who successfully exploited the vulnerability could obtain information to further compromise the user’s system. To ex…
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Medium 4.8
heap-buffer-overflow on exif_scan_thumbnail in EXIF extension
When PHP EXIF extension is parsing EXIF information from an image, e.g. via exif_read_data() function, in PHP versions 7.1.x below 7.1.31, 7.2.x below 7.2.21 and 7.3.x below 7.3.8 it is possible to supply it with data what will cause it to read past the alloc…
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Medium 4.8
heap-buffer-overflow on exif_process_user_comment in EXIF extension
When PHP EXIF extension is parsing EXIF information from an image, e.g. via exif_read_data() function, in PHP versions 7.1.x below 7.1.31, 7.2.x below 7.2.21 and 7.3.x below 7.3.8 it is possible to supply it with data what will cause it to read past the alloc…
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Medium 6.5
A vulnerability was found in postgresql versions 11.x prior to 11.3. Using a purpose-crafted insert to a partitioned ta…
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Medium 4.8
Heap buffer overflow in EXIF extension
When PHP EXIF extension is parsing EXIF information from an image, e.g. via exif_read_data() function, in PHP versions 7.1.x below 7.1.30, 7.2.x below 7.2.19 and 7.3.x below 7.3.6 it is possible to supply it with data what will cause it to read past the alloc…
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Medium 4.2
Out-of-bounds read in iconv.c
Function iconv_mime_decode_headers() in PHP versions 7.1.x below 7.1.30, 7.2.x below 7.2.19 and 7.3.x below 7.3.6 may perform out-of-buffer read due to integer overflow when parsing MIME headers. This may lead to information disclosure or crash.
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Medium —
Out-of-bounds Read in npmconf
Versions of `npmconf` before 2.1.3 allocate and write to disk uninitialized memory contents when a typed number is passed as input on Node.js 4.x. ## Recommendation Update to version 2.1.3 or later. Consider switching to another config storage mechanism, as n…
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Medium —
Out-of-bounds Read in byte
Versions of `byte` before 1.4.1 allocate uninitialized buffers and read data from them past the initialized length ## Recommendation Update to version 1.4.1 or later.
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Medium —
Out-of-bounds Read in concat-with-sourcemaps
Versions of `concat-with-sourcemaps` before 1.0.6 allocates uninitialized Buffers when a number is passed as a separator. ## Recommendation Update to version 1.0.6 or later.
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Medium 4.8
Cisco AnyConnect Secure Mobility Client for Linux Out-of-Bounds Memory Read Vulnerability
A vulnerability in the HostScan component of Cisco AnyConnect Secure Mobility Client for Linux could allow an unauthenticated, remote attacker to read sensitive information on an affected system. The vulnerability exists because the affected software performs…
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Medium 5.5
Capstone SEGV caused by a read memory access
Capstone 3.0.4 has an out-of-bounds vulnerability (SEGV caused by a read memory access) in X86_insn_reg_intel in arch/X86/X86Mapping.c.
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Medium 4.8
Heap over-read in PHP EXIF extension
When processing certain files, PHP EXIF extension in versions 7.1.x below 7.1.28, 7.2.x below 7.2.17 and 7.3.x below 7.3.4 can be caused to read past allocated buffer in exif_process_IFD_TAG function. This may lead to information disclosure or crash.
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Medium 4.8
Heap over-read in PHP EXIF extension
When processing certain files, PHP EXIF extension in versions 7.1.x below 7.1.28, 7.2.x below 7.2.17 and 7.3.x below 7.3.4 can be caused to read past allocated buffer in exif_iif_add_value function. This may lead to information disclosure or crash.
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Medium 5.0
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SFTP packets with empty payloads are parse…
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Medium 5.0
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH packets with a padding length value gr…
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Medium 5.0
An out of bounds read flaw was discovered in libssh2 before 1.8.1 when a specially crafted SFTP packet is received from…
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Medium 5.0
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the _libssh2_packet_require and _libssh2_packet_re…
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Medium 5.4CVE-2018-16890 Public exploit
libcurl versions from 7.36.0 to before 7.64.0 is vulnerable to a heap buffer out-of-bounds read. The function handling …
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Medium 4.3
libcurl versions from 7.34.0 to before 7.64.0 are vulnerable to a heap out-of-bounds read in the code handling the end-…
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Medium 4.3
An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon …
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Medium 4.7
A flaw was found in the Linux kernel that allows the userspace to call memcpy_fromiovecend() and similar functions with…
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Medium 4.4
Curl versions 7.14.1 through 7.61.1 are vulnerable to a heap-based buffer over-read in the tool_msgs.c:voutf() function…
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Medium 5.5
Open Chinese Convert subject to Denial of Service via Out-of-bounds Read
Open Chinese Convert (OpenCC) 1.0.5 allows attackers to cause a denial of service (segmentation fault) because BinaryDict::NewFromFile in BinaryDict.cpp may have out-of-bounds keyOffset and valueOffset values via a crafted .ocd file.
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Medium 5.5
An out-of-bounds heap read vulnerability was found in the jpc_pi_nextpcrl() function of jasper before 2.0.6 when proces…
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Medium 6.5
An out-of-bounds read vulnerability was found in OpenJPEG 2.1.2, in the j2k_to_image tool. Converting a specially craft…
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Medium 5.3
The `curl_getdate` function in curl before version 7.51.0 is vulnerable to an out of bounds read if it receives an inpu…
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Medium 5.1
A kernel data leak due to an out-of-bound read was found in the Linux kernel in inet_diag_msg_sctp{,l}addr_fill() and s…
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Medium 5.5
The libfsntfs_attribute_read_from_mft function in libfsntfs_attribute.c in libfsntfs through 2018-04-20 allows remote a…
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Medium 5.5
The libfsntfs_reparse_point_values_read_data function in libfsntfs_reparse_point_values.c in libfsntfs through 2018-04-…
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Medium 5.9CVE-2017-14461 EPSS 17%
A specially crafted email delivered over SMTP and passed on to Dovecot by MTA can trigger an out of bounds read resulti…
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Medium 5.5
Ox gem stack overflow in sax_parse
In the Ox gem 2.8.1 for Ruby, the process crashes with a stack-based buffer over-read in the read_from_str function in sax_buf.c when a crafted input is supplied to sax_parse.
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Medium 4.3CVE-2018-5380 EPSS 15%
The Quagga BGP daemon (bgpd) prior to version 1.2.3 can overrun internal BGP code-to-string conversion tables used for …
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Medium 4.0
In LibTIFF 4.0.6 and possibly other versions, the program processes BMP images without verifying that biWidth and biHei…
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Medium 6.3
plugins/demux/libmkv_plugin.dll in VideoLAN VLC Media Player 2.0.7, and possibly other versions, allows remote attacker…
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Medium 6.5
file before 5.11 and libmagic allow remote attackers to cause a denial of service (crash) via a crafted Composite Docum…
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Medium 6.5
wp-admin/user-edit.php in WordPress before 2.0.5 allows remote authenticated users to read the metadata of an arbitrary…
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Medium 5.5
Cisco Secure Desktop (CSD) does not require that the ClearPageFileAtShutdown (aka CCE-Winv2.0-407) registry value equal…