Description
In Xpdf 4.02, SplashOutputDev::endType3Char(GfxState *state) SplashOutputDev.cc:3079 is trying to use the freed `t3GlyphStack->cache`, which causes an `heap-use-after-free` problem. The codes of a previous fix for nested Type 3 characters wasn't correctly handling the case where a Type 3 char referred to another char in the same Type 3 font.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Glyph & Cog | xpdf | 4.02 | — |
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.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | ipe | No fix yet | — |
| Ubuntu 26.04 LTS | ipe | No fix yet | — |
| Ubuntu 25.10 | ipe | No fix yet | — |
| Ubuntu 24.04 LTS | ipe | No fix yet | — |
| Ubuntu 22.04 LTS | ipe | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | ipe | No fix yet | — |
| Ubuntu 18.04 LTS | ipe | No fix yet | — |
| Ubuntu 16.04 LTS | ipe | No fix yet | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | xpdf | 4.03-r0 | — |
| Alpine v3.23 | xpdf | 4.03-r0 | — |
| Alpine v3.22 | xpdf | 4.03-r0 | — |
| Alpine v3.21 | xpdf | 4.03-r0 | — |
| Alpine v3.20 | xpdf | 4.03-r0 | — |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | xpdf | 4.03-r0 | — |
| Alpine v3.18 | xpdf | 4.03-r0 | — |
| Alpine v3.17 | xpdf | 4.03-r0 | — |
| Alpine v3.16 | xpdf | 4.03-r0 | — |
| Alpine v3.15 | xpdf | 4.03-r0 | — |
| Alpine v3.14 | xpdf | 4.03-r0 | — |
| Alpine v3.13 | xpdf | 4.03-r0 | — |
Advisories 1
- WID-SEC-2024-1036 xpdf: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · May 6, 2024