Description
SAMtools is a program for reading, manipulating and writing bioinformatics file formats. Starting in version 1.17, in the cram-size command, used to write information about how well CRAM files are compressed, a check to see if the `cram_decode_compression_header()` was missing. If the function returned an error, this could lead to a NULL pointer dereference. Exploiting this bug causes a NULL pointer dereference. Typically this will cause the program to crash. Versions 1.23.1, 1.22.2 and 1.21.1 include fixes for this issue. There is no workaround for this issue.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| samtools | samtools | >= 1.17, < 1.21.1, >= 1.22, < 1.22.2, = 1.23 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | samtools | 1.24-2 | — |
| Debian 13 | samtools | No fix yet | — |
| Debian 12 | samtools | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | samtools | No fix yet | — |
| Ubuntu 26.04 LTS | samtools | No fix yet | — |
| Ubuntu 25.10 | samtools | No fix yet | — |
| Ubuntu 24.04 LTS | samtools | No fix yet | — |
| Ubuntu 22.04 LTS | samtools | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | samtools | No fix yet | — |
| Ubuntu 18.04 LTS | samtools | No fix yet | — |
| Ubuntu 16.04 LTS | samtools | No fix yet | — |
| Ubuntu 14.04 LTS | samtools | No fix yet | — |