Fedoraproject: >> Fedora >> 33 Security Vulnerabilities
An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service.
CVSS Score
3.2
EPSS Score
0.0
Published
2022-08-17
A heap double free issue was found in Opensc before version 0.22.0 in sc_pkcs15_free_tokeninfo.
CVSS Score
5.3
EPSS Score
0.001
Published
2022-04-18
A heap use after free issue was found in Opensc before version 0.22.0 in sc_file_valid.
CVSS Score
5.3
EPSS Score
0.0
Published
2022-04-18
A use after return issue was found in Opensc before version 0.22.0 in insert_pin function that could potentially crash programs using the library.
CVSS Score
5.3
EPSS Score
0.0
Published
2022-04-18
Heap buffer overflow issues were found in Opensc before version 0.22.0 in pkcs15-oberthur.c that could potentially crash programs using the library.
CVSS Score
5.3
EPSS Score
0.001
Published
2022-04-18
Stack buffer overflow issues were found in Opensc before version 0.22.0 in various places that could potentially crash programs using the library.
CVSS Score
5.3
EPSS Score
0.001
Published
2022-04-18
ALPACA is an application layer protocol content confusion attack, exploiting TLS servers implementing different protocols but using compatible certificates, such as multi-domain or wildcard certificates. A MiTM attacker having access to victim's traffic at the TCP/IP layer can redirect traffic from one subdomain to another, resulting in a valid TLS session. This breaks the authentication of TLS and cross-protocol attacks may be possible where the behavior of one protocol service may compromise the other at the application layer.
CVSS Score
7.4
EPSS Score
0.004
Published
2022-03-23
An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits (tx) descriptors in process_tx_desc if various descriptor fields are initialized with invalid values. This flaw allows a guest to consume CPU cycles on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
CVSS Score
6.5
EPSS Score
0.0
Published
2022-03-16
There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the server to the client. The greatest threat that this flaw poses is to application availability.
CVSS Score
6.5
EPSS Score
0.004
Published
2022-03-10
A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "virt_ext" field, this issue could allow a malicious L1 to disable both VMLOAD/VMSAVE intercepts and VLS (Virtual VMLOAD/VMSAVE) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape.
CVSS Score
8.8
EPSS Score
0.001
Published
2022-03-04
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