CWE-1335
Incorrect Bitwise Shift of Integer
An integer value is specified to be shifted by a negative amount or an amount greater than or equal to the number of bits contained in the value causing an unexpected or indeterminate result.
CVE-2023-3161 (GCVE-0-2023-3161)
Vulnerability from cvelistv5 – Published: 2023-06-12 00:00 – Updated: 2025-03-11 14:54
VLAI?
Summary
A flaw was found in the Framebuffer Console (fbcon) in the Linux Kernel. When providing font->width and font->height greater than 32 to fbcon_set_font, since there are no checks in place, a shift-out-of-bounds occurs leading to undefined behavior and possible denial of service.
Severity ?
5.5 (Medium)
CWE
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| n/a | Linux Kernel (fbcon) |
Affected:
Fixed in kernel 6.2-rc7
|
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CVE-2025-32029 (GCVE-0-2025-32029)
Vulnerability from cvelistv5 – Published: 2025-04-07 20:13 – Updated: 2025-04-08 13:38
VLAI?
Title
ts-asn1-der has Incorrect DER Encoding of Numbers Leading to Denial of Service and Incorrect Value Representation
Summary
ts-asn1-der is a collection of utility classes to encode ASN.1 data following DER rule. Incorrect number DER encoding can lead to denial on service for absolute values in the range 2**31 -- 2**32 - 1. The arithmetic in the numBitLen didn't take into account that values in this range could result in a negative result upon applying the >> operator, leading to an infinite loop. The issue is patched in version 1.0.4. If upgrading is not an option, the issue can be mitigated by validating inputs to Asn1Integer to ensure that they are not smaller than -2**31 + 1 and no larger than 2**31 - 1.
Severity ?
CWE
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| ApelegHQ | ts-asn1-der |
Affected:
< 1.0.4
|
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CVE-2026-4426 (GCVE-0-2026-4426)
Vulnerability from cvelistv5 – Published: 2026-03-19 13:53 – Updated: 2026-03-19 13:53
VLAI?
Title
Libarchive: libarchive: denial of service via malformed iso file processing
Summary
A flaw was found in libarchive. An Undefined Behavior vulnerability exists in the zisofs decompression logic, caused by improper validation of a field (`pz_log2_bs`) read from ISO9660 Rock Ridge extensions. A remote attacker can exploit this by supplying a specially crafted ISO file. This can lead to incorrect memory allocation and potential application crashes, resulting in a denial-of-service (DoS) condition.
Severity ?
6.5 (Medium)
CWE
- CWE-1335 - Incorrect Bitwise Shift of Integer
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10 |
|||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||
Date Public ?
2026-03-19 00:00
Credits
Red Hat would like to thank Elhanan Haenel for reporting this issue.
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Mitigation
Phase: Implementation
Description:
- Implicitly or explicitly add checks and mitigation for negative or over-shift values.
No CAPEC attack patterns related to this CWE.