CVE-2020-23856
published 2021-05-18CVE-2020-23856: Use-after-Free vulnerability in cflow 1.6 in the void call(char *name, int line) function at src/parser.c, which could cause a denial of service via the…
PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.42%
34.0th percentile
Use-after-Free vulnerability in cflow 1.6 in the void call(char *name, int line) function at src/parser.c, which could cause a denial of service via the pointer variable caller->callee.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | cflow | < cflow 1:1.6-6 (bookworm) | cflow 1:1.6-6 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| gnu | cflow | — | — |
| gnu | cflow | >= 0 < 1:1.6-6 | 1:1.6-6 |
| gnu | cflow | >= 0 < 1:1.6-6 | 1:1.6-6 |
| gnu | cflow | >= 0 < 1:1.6-6 | 1:1.6-6 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:N/I:N/A:P
osv5.5MEDIUM
vendor_debian5.5LOW
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GHSA
GHSA-h5qf-rf3c-vmj5: Use-after-Free vulnerability in cflow 1
ghsa_unreviewed·2022-05-24
CVE-2020-23856 [MEDIUM] CWE-416 GHSA-h5qf-rf3c-vmj5: Use-after-Free vulnerability in cflow 1
Use-after-Free vulnerability in cflow 1.6 in the void call(char *name, int line) function at src/parser.c, which could cause a denial of service via the pointer variable caller->callee.
OSV
CVE-2020-23856: Use-after-Free vulnerability in cflow 1
osv·2021-05-18·CVSS 5.5
CVE-2020-23856 [MEDIUM] CVE-2020-23856: Use-after-Free vulnerability in cflow 1
Use-after-Free vulnerability in cflow 1.6 in the void call(char *name, int line) function at src/parser.c, which could cause a denial of service via the pointer variable caller->callee.
Debian
CVE-2020-23856: cflow - Use-after-Free vulnerability in cflow 1.6 in the void call(char *name, int line)...
vendor_debian·2020·CVSS 5.5
CVE-2020-23856 [MEDIUM] CVE-2020-23856: cflow - Use-after-Free vulnerability in cflow 1.6 in the void call(char *name, int line)...
Use-after-Free vulnerability in cflow 1.6 in the void call(char *name, int line) function at src/parser.c, which could cause a denial of service via the pointer variable caller->callee.
Scope: local
bookworm: resolved (fixed in 1:1.6-6)
bullseye: open
forky: resolved (fixed in 1:1.6-6)
sid: resolved (fixed in 1:1.6-6)
trixie: resolved (fixed in 1:1.6-6)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://github.com/yangjiageng/PoC/blob/master/PoC_cflow_uaf_parser_line1284https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BLSXGFK2NYPCJMPHSHE3W56ZU3ZO6RD7/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZTTKZX274BVFZX7TMPEZG6UWL6UPMQF/https://lists.gnu.org/archive/html/bug-cflow/2020-07/msg00000.htmlhttps://github.com/yangjiageng/PoC/blob/master/PoC_cflow_uaf_parser_line1284https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BLSXGFK2NYPCJMPHSHE3W56ZU3ZO6RD7/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZTTKZX274BVFZX7TMPEZG6UWL6UPMQF/https://lists.gnu.org/archive/html/bug-cflow/2020-07/msg00000.html
2021-05-18
Published