| Name | CVE-2020-19909 |
| Description | Integer overflow vulnerability in tool_operate.c in curl 7.65.2 via a large value as the retry delay. NOTE: many parties report that this has no direct security impact on the curl user; however, it may (in theory) cause a denial of service to associated systems or networks if, for example, --retry-delay is misinterpreted as a value much smaller than what was intended. This is not especially plausible because the overflow only happens if the user was trying to specify that curl should wait weeks (or longer) before trying to recover from a transient error. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| curl (PTS) | jessie, jessie (lts) | 7.38.0-4+deb8u27 | vulnerable |
| stretch (security) | 7.52.1-5+deb9u16 | vulnerable |
| stretch (lts), stretch | 7.52.1-5+deb9u21 | vulnerable |
| buster | 7.64.0-4+deb10u2 | vulnerable |
| buster (security) | 7.64.0-4+deb10u9 | vulnerable |
| bullseye (security), bullseye | 7.74.0-1.3+deb11u11 | fixed |
| bookworm (security), bookworm | 7.88.1-10+deb12u5 | fixed |
| trixie | 8.7.1-3 | fixed |
| sid | 8.7.1-5 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| curl | source | (unstable) | 7.66.0-1 | unimportant | | |
Notes
https://github.com/curl/curl/pull/4166
Fixed by: https://github.com/curl/curl/commit/db0a0dfb0eb41d39273b0590b992df58f38b9a4d (curl-7_66_0)
Crash in CLI tool, no security impact