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CVE-2021-42379

Low priority

Some fixes available 5 of 7

A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the next_input_file function

1 affected package

busybox

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
busybox Fixed Fixed Fixed
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CVE-2021-42378

Low priority

Some fixes available 5 of 7

A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the getvar_i function

1 affected package

busybox

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
busybox Fixed Fixed Fixed
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CVE-2021-42377

Low priority
Not affected

An attacker-controlled pointer free in Busybox's hush applet leads to denial of service and possible code execution when processing a crafted shell command, due to the shell mishandling the &&& string. This may be used for remote...

1 affected package

busybox

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
busybox Not affected Not affected Not affected
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CVE-2021-42376

Negligible priority
Not affected

A NULL pointer dereference in Busybox's hush applet leads to denial of service when processing a crafted shell command, due to missing validation after a \x03 delimiter character. This may be used for DoS under very...

1 affected package

busybox

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
busybox Not affected Not affected Not affected
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CVE-2021-42375

Negligible priority
Not affected

An incorrect handling of a special element in Busybox's ash applet leads to denial of service when processing a crafted shell command, due to the shell mistaking specific characters for reserved characters. This may be used...

1 affected package

busybox

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
busybox Not affected Not affected Not affected
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CVE-2021-42374

Low priority
Fixed

An out-of-bounds heap read in Busybox's unlzma applet leads to information leak and denial of service when crafted LZMA-compressed input is decompressed. This can be triggered by any applet/format that

1 affected package

busybox

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
busybox Fixed Fixed Fixed
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CVE-2021-42373

Low priority
Not affected

A NULL pointer dereference in Busybox's man applet leads to denial of service when a section name is supplied but no page argument is given

1 affected package

busybox

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
busybox Not affected Not affected Not affected
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CVE-2021-28831

Low priority

Some fixes available 9 of 10

decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer, with a resultant invalid free or segmentation fault, via malformed gzip data.

1 affected package

busybox

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
busybox Fixed Fixed Fixed
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CVE-2019-5747

Medium priority
Fixed

An issue was discovered in BusyBox through 1.30.0. An out of bounds read in udhcp components (consumed by the DHCP client, server, and/or relay) might allow a remote attacker to leak sensitive information from the stack by sending...

1 affected package

busybox

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
busybox Fixed Fixed
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CVE-2018-20679

Low priority
Fixed

An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components (consumed by the DHCP server, client, and relay) allows a remote attacker to leak sensitive information from the stack by sending...

1 affected package

busybox

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
busybox Fixed Fixed
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