| Name | CVE-2020-1752 |
| Description | A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username were affected by this issue. A local attacker could exploit this flaw by creating a specially crafted path that, when processed by the glob function, would potentially lead to arbitrary code execution. This was fixed in version 2.32. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3152-1, ELA-724-1, ELA-725-1 |
| Debian Bugs | 953788 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| glibc (PTS) | jessie, jessie (lts) | 2.19-18+deb8u13 | fixed |
| stretch (security) | 2.24-11+deb9u1 | vulnerable | |
| stretch (lts), stretch | 2.24-11+deb9u6 | fixed | |
| buster | 2.28-10+deb10u1 | vulnerable | |
| buster (security) | 2.28-10+deb10u3 | fixed | |
| bullseye | 2.31-13+deb11u8 | fixed | |
| bullseye (security) | 2.31-13+deb11u10 | fixed | |
| bookworm | 2.36-9+deb12u4 | fixed | |
| bookworm (security) | 2.36-9+deb12u7 | fixed | |
| trixie | 2.38-7 | fixed | |
| sid | 2.38-8 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| glibc | source | jessie | 2.19-18+deb8u11 | ELA-725-1 | ||
| glibc | source | stretch | 2.24-11+deb9u5 | ELA-724-1 | ||
| glibc | source | buster | 2.28-10+deb10u2 | DLA-3152-1 | ||
| glibc | source | (unstable) | 2.30-3 | 953788 |
https://sourceware.org/bugzilla/show_bug.cgi?id=25414
Introduced in: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=f2962a71959fd254a7a223437ca4b63b9e81130c (2.14)
Fixed by: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=ddc650e9b3dc916eab417ce9f79e67337b05035c