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CVE-2020-12062

openssh: scp can send duplicate responses to the server upon a utimes system call failure leading to overwrite of arbitrary files

The scp client in OpenSSH 8.2 incorrectly sends duplicate responses to the server upon a utimes system call failure, which allows a malicious unprivileged user on the remote server to overwrite arbitrary files in the client's download directory by creating a crafted subdirectory anywhere on the remote server. The victim must use the command scp -rp to download a file hierarchy containing, anywhere inside, this crafted subdirectory. NOTE: the vendor points out that "this attack can achieve no more than a hostile peer is already able to achieve within the scp protocol" and "utimes does not fail under normal circumstances.

CVSS 3.1 · 7.5 High EPSS 2.2% KEV · Not listed
Vendors
Openbsd
Products
Openssh
CVE-2026-65141

Eval Injection Allowing Remote Code Execution in NVIDIA Isaac Lab

NVIDIA Isaac Lab contains a vulnerability where an attacker could cause an eval injection. A successful exploit of this vulnerability might lead to code execution, information disclosure, data tampering, and denial of service.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Nvidia
Products
Isaac Lab
CVE-2020-8492

python: wrong backtracking in urllib.request.AbstractBasicAuthHandler allows for a ReDoS

Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1 allows an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking.

CVSS 3.1 · 6.5 Medium EPSS 6.6% KEV · Not listed
Vendors
Canonical Debian Fedoraproject and 3 more
Products
Ubuntu Linux Debian Linux Fedora and 4 more
CVE-2020-8315

python: unsafe dll loading in getpathp.c on Windows

In Python (CPython) 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1, an insecure dependency load upon launch on Windows 7 may result in an attacker's copy of api-ms-win-core-path-l1-1-0.dll being loaded and used instead of the system's copy. Windows 8 and later are unaffected.

CVSS 3.1 · 5.5 Medium EPSS 1.5% KEV · Not listed
Vendors
Python
Products
Python
CVE-2020-8286

curl: Inferior OCSP verification

curl 7.41.0 through 7.73.0 is vulnerable to an improper check for certificate revocation due to insufficient verification of the OCSP response.

CVSS 3.1 · 7.5 High EPSS 4.6% KEV · Not listed
Vendors
Apple Debian Fedoraproject and 6 more
Products
Mac Os X Macos Debian Linux and 19 more
CVE-2020-8285

curl: Malicious FTP server can trigger stack overflow when CURLOPT_CHUNK_BGN_FUNCTION is used

curl 7.21.0 to and including 7.73.0 is vulnerable to uncontrolled recursion due to a stack overflow issue in FTP wildcard match parsing.

CVSS 3.1 · 7.5 High EPSS 9.8% KEV · Not listed
Vendors
Apple Debian Fedoraproject and 7 more
Products
Mac Os X Macos Debian Linux and 29 more
CVE-2020-8284

curl: FTP PASV command response can cause curl to connect to arbitrary host

A malicious server can use the FTP PASV response to trick curl 7.73.0 and earlier into connecting back to a given IP address and port, and this way potentially make curl extract information about services that are otherwise private and not disclosed, for example doing port scanning and service banner extractions.

CVSS 3.1 · 3.7 Low EPSS 3.9% KEV · Not listed
Vendors
Apple Debian Fedoraproject and 7 more
Products
Mac Os X Macos Debian Linux and 28 more
CVE-2020-8177

curl: Incorrect argument check can allow remote servers to overwrite local files

curl 7.20.0 through 7.70.0 is vulnerable to improper restriction of names for files and other resources that can lead too overwriting a local file when the -J flag is used.

CVSS 3.1 · 7.8 High EPSS 1.3% KEV · Not listed
Vendors
Debian Fujitsu Haxx and 3 more
Products
Debian Linux M10-1 M10-1 Firmware and 16 more
CVE-2020-6096

glibc: signed comparison vulnerability in the ARMv7 memcpy function

An exploitable signed comparison vulnerability exists in the ARMv7 memcpy() implementation of GNU glibc 2.30.9000. Calling memcpy() (on ARMv7 targets that utilize the GNU glibc implementation) with a negative value for the 'num' parameter results in a signed comparison vulnerability. If an attacker underflows the 'num' parameter to memcpy(), this vulnerability could lead to undefined behavior such as writing to out-of-bounds memory and potentially remote code execution. Furthermore, this memcpy() implementation allows for program execution to continue in scenarios where a segmentation fault or crash should have occurred. The dangers occur in that subsequent execution and iterations of this code will be executed with this corrupted data.

CVSS 3.1 · 8.1 High EPSS 5.5% KEV · Not listed
Vendors
Debian Fedoraproject Gnu
Products
Debian Linux Fedora Glibc
CVE-2020-1752

glibc: use-after-free in glob() function when expanding ~user

A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username were affected by this issue. A local attacker could exploit this flaw by creating a specially crafted path that, when processed by the glob function, would potentially lead to arbitrary code execution. This was fixed in version 2.32.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Gnu and 2 more
Products
Ubuntu Linux Debian Linux Glibc and 7 more
CVE-2020-1751

glibc: array overflow in backtrace functions for powerpc

An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on PowerPC. Specifically, the backtrace function did not properly check the array bounds when storing the frame address, resulting in a denial of service or potential code execution. The highest threat from this vulnerability is to system availability.

CVSS 3.1 · 5.1 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Gnu Redhat
Products
Ubuntu Linux Glibc Enterprise Linux
CVE-2020-1712

systemd: use-after-free when asynchronous polkit queries are performed

A heap use-after-free vulnerability was found in systemd before version v245-rc1, where asynchronous Polkit queries are performed while handling dbus messages. A local unprivileged attacker can abuse this flaw to crash systemd services or potentially execute code and elevate their privileges, by sending specially crafted dbus messages.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Debian Redhat Systemd Project
Products
Debian Linux Ceph Storage Discovery and 5 more
CVE-2020-11501

gnutls: DTLS client hello contains a random value of all zeroes

GnuTLS 3.6.x before 3.6.13 uses incorrect cryptography for DTLS. The earliest affected version is 3.6.3 (2018-07-16) because of an error in a 2017-10-06 commit. The DTLS client always uses 32 '\0' bytes instead of a random value, and thus contributes no randomness to a DTLS negotiation. This breaks the security guarantees of the DTLS protocol.

CVSS 3.1 · 7.4 High EPSS 3.4% KEV · Not listed
Vendors
Canonical Debian Fedoraproject and 3 more
Products
Ubuntu Linux Debian Linux Fedora and 3 more
CVE-2020-10878

perl: corruption of intermediate language state of compiled regular expression due to integer overflow leads to DoS

Perl before 5.30.3 has an integer overflow related to mishandling of a "PL_regkind[OP(n)] == NOTHING" situation. A crafted regular expression could lead to malformed bytecode with a possibility of instruction injection.

CVSS 3.1 · 8.6 High EPSS 4.9% KEV · Not listed
Vendors
Fedoraproject Netapp Opensuse and 3 more
Products
Fedora Oncommand Workflow Automation Snap Creator Framework and 19 more
CVE-2020-10735

python: int() type in PyLong_FromString() does not limit amount of digits converting text to int leading to DoS

A flaw was found in python. In algorithms with quadratic time complexity using non-binary bases, when using int("text"), a system could take 50ms to parse an int string with 100,000 digits and 5s for 1,000,000 digits (float, decimal, int.from_bytes(), and int() for binary bases 2, 4, 8, 16, and 32 are not affected). The highest threat from this vulnerability is to system availability.

CVSS 3.1 · 6.2 Medium EPSS 4.5% KEV · Not listed
Vendors
Fedoraproject Python Redhat
Products
Fedora Python Enterprise Linux and 4 more