| Name | CVE-2020-29562 |
| Description | The iconv function in the GNU C Library (aka glibc or libc6) 2.30 to 2.32, when converting UCS4 text containing an irreversible character, fails an assertion in the code path and aborts the program, potentially resulting in a denial of service. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 976391 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| glibc (PTS) | jessie, jessie (lts) | 2.19-18+deb8u14 | fixed |
| stretch (security) | 2.24-11+deb9u1 | fixed |
| stretch (lts), stretch | 2.24-11+deb9u7 | fixed |
| buster (security), buster, buster (lts) | 2.28-10+deb10u4 | fixed |
| bullseye | 2.31-13+deb11u11 | fixed |
| bullseye (security) | 2.31-13+deb11u10 | fixed |
| bookworm | 2.36-9+deb12u9 | fixed |
| bookworm (security) | 2.36-9+deb12u7 | fixed |
| sid, trixie | 2.40-4 | 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 | (not affected) | | | |
| glibc | source | stretch | (not affected) | | | |
| glibc | source | buster | (not affected) | | | |
| glibc | source | (unstable) | 2.31-7 | | | 976391 |
Notes
[buster] - glibc <not-affected> (Vulnerability introduced later in 2.30)
[stretch] - glibc <not-affected> (Vulnerability introduced later in 2.30)
https://sourceware.org/bugzilla/show_bug.cgi?id=26923
https://sourceware.org/pipermail/libc-alpha/2020-November/119822.html
https://sourceware.org/git/?p=glibc.git;a=commit;h=228edd356f03bf62dcf2b1335f25d43c602ee68d
[jessie] - glibc <not-affected> (Vulnerability introduced later in 2.30)