https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-07T22:35:09.141561+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/bdu:2024-02667 bdu:2024-02667 2026-10-07T22:35:09.269307+00:00 bdu:2024-02667 https://cve.radiocsirt.org/vuln/euvd-2026-216446 EUVD-2026-216446 2026-10-07T22:35:09.269383+00:00 EUVD-2026-216446 https://cve.radiocsirt.org/vuln/fkie_cve-2023-31137 fkie_cve-2023-31137 2026-10-07T22:35:09.269411+00:00

MaraDNS is open-source software that implements the Domain Name System (DNS). In version 3.5.0024 and prior, a remotely exploitable integer underflow vulnerability in the DNS packet decompression function allows an attacker to cause a Denial of Service by triggering an abnormal program termination.

The vulnerability exists in the `decomp_get_rddata` function within the `Decompress.c` file. When handling a DNS packet with an Answer RR of qtype 16 (TXT record) and any qclass, if the `rdlength` is smaller than `rdata`, the result of the line `Decompress.c:886` is a negative number `len = rdlength - total;`. This value is then passed to the `decomp_append_bytes` function without proper validation, causing the program to attempt to allocate a massive chunk of memory that is impossible to allocate. Consequently, the program exits with an error code of 64, causing a Denial of Service.

One proposed fix for this vulnerability is to patch `Decompress.c:887` by breaking `if(len <= 0)`, which has been incorporated in version 3.5.0036 via commit bab062bde40b2ae8a91eecd522e84d8b993bab58.

 https://cve.radiocsirt.org/vuln/gsd-2023-31137 gsd-2023-31137 2026-10-07T22:35:09.269479+00:00 gsd-2023-31137 https://cve.radiocsirt.org/vuln/ubuntu-cve-2023-31137 UBUNTU-CVE-2023-31137 2026-10-07T22:35:09.269501+00:00

Affected: Ubuntu:Pro:16.04:LTS: maradns, Ubuntu:Pro:18.04:LTS: maradns, Ubuntu:20.04:LTS: maradns, Ubuntu:22.04:LTS: maradns

MaraDNS is open-source software that implements the Domain Name System (DNS). In version 3.5.0024 and prior, a remotely exploitable integer underflow vulnerability in the DNS packet decompression function allows an attacker to cause a Denial of Service by triggering an abnormal program termination. The vulnerability exists in the `decomp_get_rddata` function within the `Decompress.c` file. When handling a DNS packet with an Answer RR of qtype 16 (TXT record) and any qclass, if the `rdlength` is smaller than `rdata`, the result of the line `Decompress.c:886` is a negative number `len = rdlength - total;`. This value is then passed to the `decomp_append_bytes` function without proper validation, causing the program to attempt to allocate a massive chunk of memory that is impossible to allocate. Consequently, the program exits with an error code of 64, causing a Denial of Service. One proposed fix for this vulnerability is to patch `Decompress.c:887` by breaking `if(len <= 0)`, which has been incorporated in version 3.5.0036 via commit bab062bde40b2ae8a91eecd522e84d8b993bab58.