An issue was discovered in Rsyslog v8.1908.0. contrib/pmcisconames/pmcisconames.c has a heap overflow in the parser for Cisco log messages. The parser tries to locate a log message delimiter (in this case, a space or a colon), but fails to account for strings that do not satisfy this constraint. If the string does not match, then the variable lenMsg will reach the value zero and will skip the sanity check that detects invalid log messages. The message will then be considered valid, and the parser will eat up the nonexistent colon delimiter. In doing so, it will decrement lenMsg, a signed integer, whose value was zero and now becomes minus one. The following step in the parser is to shift left the contents of the message. To do this, it will call memmove with the right pointers to the target and destination strings, but the lenMsg will now be interpreted as a huge value, causing a heap overflow.
CVSS Score
9.8
EPSS Score
0.004
Published
2019-10-07
libfreerdp/codec/region.c in FreeRDP through 1.1.x and 2.x through 2.0.0-rc4 has memory leaks because a supplied realloc pointer (i.e., the first argument to realloc) is also used for a realloc return value.
CVSS Score
7.5
EPSS Score
0.009
Published
2019-10-04
HuffmanTree_makeFromFrequencies in lodepng.c in LodePNG through 2019-09-28, as used in WinPR in FreeRDP and other products, has a memory leak because a supplied realloc pointer (i.e., the first argument to realloc) is also used for a realloc return value.
CVSS Score
7.5
EPSS Score
0.008
Published
2019-10-04
In the Linux kernel through 5.3.2, cfg80211_mgd_wext_giwessid in net/wireless/wext-sme.c does not reject a long SSID IE, leading to a Buffer Overflow.
CVSS Score
9.8
EPSS Score
0.016
Published
2019-10-04
sf-pcapng.c in libpcap before 1.9.1 does not properly validate the PHB header length before allocating memory.
CVSS Score
5.3
EPSS Score
0.015
Published
2019-10-03
lmp_print_data_link_subobjs() in print-lmp.c in tcpdump before 4.9.3 lacks certain bounds checks.
CVSS Score
1.6
EPSS Score
0.01
Published
2019-10-03
The Babel parser in tcpdump before 4.9.3 has a buffer over-read in print-babel.c:babel_print_v2().
CVSS Score
7.5
EPSS Score
0.02
Published
2019-10-03
The command-line argument parser in tcpdump before 4.9.3 has a buffer overflow in tcpdump.c:get_next_file().
CVSS Score
7.0
EPSS Score
0.005
Published
2019-10-03
The OSPFv3 parser in tcpdump before 4.9.3 has a buffer over-read in print-ospf6.c:ospf6_print_lshdr().
CVSS Score
7.5
EPSS Score
0.01
Published
2019-10-03
The BGP parser in tcpdump before 4.9.3 has a buffer over-read in print-bgp.c:bgp_capabilities_print() (BGP_CAPCODE_RESTART).
CVSS Score
7.5
EPSS Score
0.029
Published
2019-10-03