Gnu: Security Vulnerabilities
In GNU Less before 609, crafted data can result in "less -R" not filtering ANSI escape sequences sent to the terminal.
CVSS Score
7.5
EPSS Score
0.014
Published
2023-02-07
A vulnerability was found in GNU C Library 2.38. It has been declared as critical. This vulnerability affects the function __monstartup of the file gmon.c of the component Call Graph Monitor. The manipulation leads to buffer overflow. It is recommended to apply a patch to fix this issue. VDB-220246 is the identifier assigned to this vulnerability. NOTE: The real existence of this vulnerability is still doubted at the moment. The inputs that induce this vulnerability are basically addresses of the running application that is built with gmon enabled. It's basically trusted input or input that needs an actual security flaw to be compromised or controlled.
CVSS Score
4.6
EPSS Score
0.011
Published
2023-02-06
sprintf in the GNU C Library (glibc) 2.37 has a buffer overflow (out-of-bounds write) in some situations with a correct buffer size. This is unrelated to CWE-676. It may write beyond the bounds of the destination buffer when attempting to write a padded, thousands-separated string representation of a number, if the buffer is allocated the exact size required to represent that number as a string. For example, 1,234,567 (with padding to 13) overflows by two bytes.
CVSS Score
9.8
EPSS Score
0.014
Published
2023-02-03
GNU Tar through 1.34 has a one-byte out-of-bounds read that results in use of uninitialized memory for a conditional jump. Exploitation to change the flow of control has not been demonstrated. The issue occurs in from_header in list.c via a V7 archive in which mtime has approximately 11 whitespace characters.
CVSS Score
5.5
EPSS Score
0.045
Published
2023-01-30
An illegal memory access flaw was found in the binutils package. Parsing an ELF file containing corrupt symbol version information may result in a denial of service. This issue is the result of an incomplete fix for CVE-2020-16599.
CVSS Score
5.5
EPSS Score
0.004
Published
2023-01-27
A flaw was found in the bash package, where a heap-buffer overflow can occur in valid parameter_transform. This issue may lead to memory problems.
CVSS Score
7.8
EPSS Score
0.004
Published
2023-01-05
When rendering certain unicode sequences, grub2's font code doesn't proper validate if the informed glyph's width and height is constrained within bitmap size. As consequence an attacker can craft an input which will lead to a out-of-bounds write into grub2's heap, leading to memory corruption and availability issues. Although complex, arbitrary code execution could not be discarded.
CVSS Score
7.1
EPSS Score
0.009
Published
2022-12-19
A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism.
CVSS Score
8.6
EPSS Score
0.005
Published
2022-12-14
LibreDWG v0.12.4.4643 was discovered to contain a heap buffer overflow via the function decode_preR13_section_hdr at decode_r11.c.
CVSS Score
7.8
EPSS Score
0.003
Published
2022-11-30
GNU Emacs through 28.2 allows attackers to execute commands via shell metacharacters in the name of a source-code file, because lib-src/etags.c uses the system C library function in its implementation of the ctags program. For example, a victim may use the "ctags *" command (suggested in the ctags documentation) in a situation where the current working directory has contents that depend on untrusted input.
CVSS Score
7.8
EPSS Score
0.006
Published
2022-11-28